Shanghai Huabang Industrial Business Network - High voltage isolation switch

[DC isolation switch]Four point DC high voltage isolation switch (handwheel type)

2026-6-19 17:40:49

GN3-120/3-4S Four point DC High Voltage Isolation Switch (Handwheel Type)

[DC isolation switch]Four point DC high voltage isolation switch (handwheel type)

2026-6-19 17:40:40

GN3-72/3-4S Four point DC High Voltage Isolation Switch (Handwheel Type)

[DC isolation switch]Four point DC high voltage isolation switch (flexible shaft)

2026-6-19 17:40:32

GN3-120-4R Four point DC High Voltage Isolation Switch

[DC isolation switch]Four point DC high voltage isolation switch (flexible shaft)

2026-6-19 17:40:23

GN3-72-4R Four point DC High Voltage Isolation Switch

[DC isolation switch]GN1-120-3R Three point DC high voltage isolation switch

2026-6-19 17:40:14

GN1-120-3R three-point DC high voltage isolation switch

[DC isolation switch]GN1-72-3R Three point DC high voltage isolation switch

2026-6-19 17:40:06

GN1-72-3R three-point DC high voltage isolation switch

[DC isolation switch]GN3-120-2S Two point DC high voltage isolation switch

2026-6-19 17:39:57

GN3-120-2S two-point DC high voltage isolation switch

[DC isolation switch]GN3-72/2S Two point DC high voltage isolation switch

2026-6-19 17:39:48

GN3-72/2S two-point DC high voltage isolation switch

[DC isolation switch]GN-120/3-2S Bipolar DC High Voltage Isolation Switch

2026-6-19 17:39:40

GN-120/3-2S Bipolar DC High Voltage Isolation Switch

[DC isolation switch]GN-72/3-2S Bipolar DC High Voltage Isolation Switch

2026-6-19 17:39:31

GN-72/3-2S Bipolar DC High Voltage Isolation Switch

[DC isolation switch]Single pole DC high voltage isolation switch

2026-6-19 17:39:23

GN-120/2-1S Single pole DC High Voltage Isolation Switch

[DC isolation switch]Single pole DC high voltage isolation switch

2026-6-19 17:39:14

GN-72/2-1S Single pole DC High Voltage Isolation Switch

[DC isolation switch]GN3-72-X Series Two point High Voltage Isolation Box

2026-6-19 17:39:05

The incoming end of the GN3-72-X series two-point high-voltage switchgear is connected to the high-voltage silicon rectifier, and the outgoing end is connected to the electrostatic precipitator. The orientation of the incoming and outgoing lines of the switch box is determined based on facing the isolation switch inside the box.

GN3-72-X Series Two Point High Voltage Isolation Box Technical Parameters:
Rated working voltage: 72KV (DC average)
Rated working current: 2A (DC average)

GN3-72-X Series Two Point High Voltage Isolation Box Ordering Notice:
Product model, name, and quantity. The high-voltage silicon rectifier matched with the switch box is used to determine the corresponding H value.

[DC isolation switch]GN2-72 Type Four Point DC High Voltage Isolation Switch

2026-6-19 17:38:56

GN2-72 Four Point DC High Voltage Isolation Switch

Indoor manually operated high-voltage switchgear, used in conjunction with high-voltage silicon rectifiers, is installed between the electrostatic precipitator and the high-voltage silicon rectifier. It is used for connecting, connecting, and grounding the high-voltage DC circuit of the electrostatic precipitator under no-load conditions.

Technical parameters of GN2-72 four point DC high voltage isolation switch:
Rated working voltage: 72KV (DC average)
Rated working current: 2A (DC average)

GN2-72 Four Point DC High Voltage Isolation Switch

[DC isolation switch]GN1-72 type three-point DC high voltage isolation switch

2026-6-19 17:38:48

The GN1-72 three-point DC high voltage isolation switch is an indoor manually operated high voltage switchgear, which is used in conjunction with a high voltage silicon rectifier. It is installed between the electrostatic precipitator and the high voltage silicon rectifier, and is used for the connection, networking, and grounding of the high voltage DC circuit of the electrostatic precipitator under no-load conditions.

Technical parameters of GN1-72 three-point DC high voltage isolation switch:
Rated working voltage: 72KV (DC average)
Rated working current: 2A (DC average)

Ordering Notice:
Product model, name, and quantity. (Note: A set of high-voltage silicon rectifier equipment is generally equipped with two sets of isolation switches)
The length of the flexible shaft of the operating mechanism. (The length of the flexible shaft of the factory product is 5m-8m)

[Indoor isolation switch]GN24-12DC/400A-1250A Indoor AC High Voltage Isolation Switch

2026-6-19 15:13:25

GN24-12DC/400A-1250A Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN27-40.5D/630A Indoor AC High Voltage Isolation Switch

2026-6-19 15:12:53

GN27-40.5D/630A Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN30-12D/630A-3150A Indoor AC high voltage isolation switch

2026-6-19 14:47:38

GN30-12D/630A-3150A Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN2-40.5-630-2000A Single pole indoor AC high voltage isolation switch

2026-6-19 14:47:19

GN2-40.5-630-2000A Single pole Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN27-40.5/2500A Indoor AC high voltage isolation switch

2026-6-19 14:46:54

GN27-40.5/2500A Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN22-12D/2000A-3150A Indoor AC High Voltage Isolation Switch

2026-6-19 14:46:28

GN22-12D/2000A-3150A Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN24-12/630A Type Four Phase Indoor AC High Voltage Isolation Switch

2026-6-19 14:46:14

GN24-12/630A Four Phase Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN22-24 Indoor AC High Voltage Isolation Switch

2026-6-19 14:46:07

GN22-24 Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN19-12/400A-2000A series single pole indoor AC high voltage isolation switch

2026-6-19 14:45:49

GN19-12/400A-2000A series single pole indoor AC high voltage isolation switch

[Indoor isolation switch]GN10-24/5000A type indoor high-voltage isolation switch

2026-6-19 14:45:41

GN10-24/5000A indoor high-voltage isolation switch

[Indoor isolation switch]GN10-20/2000A-6300A series indoor high-voltage isolation switch

2026-6-19 14:45:33

GN10-20/2000A-6300A series indoor high-voltage isolation switch

[Indoor isolation switch]GN19-S series 40.5kV indoor high-voltage isolation switch

2026-6-19 14:45:24

model	System constant voltage kV	rated current A	4s thermal stability current kA	Dynamic stable current kA	main circuit resistance �� (not greater than)	Creepage distance ratio cm/kV	mechanical life time	Lightning impulse withstand voltage kV		1-minute power frequency withstand voltage
								To the ground, alternating with each other	fracture	To the ground, alternating with each other	fracture
GN19-40.5/630	thirty-five	six hundred and thirty	twenty	fifty	seventy	twenty	two thousand	one hundred and eighty-five	two hundred and fifteen	ninety-five	one hundred and fifteen
GN19-40.5/1250		one thousand two hundred and fifty	thirty-one point five	eighty	forty
GN19-40.5��W��/S2000-50		two thousand	fifty	one hundred and twenty-five	twenty-five
GN19-40.5��W��/S3150-50		three thousand one hundred and fifty			one

GN19-S series 40.5kV indoor high-voltage isolation switch

[Indoor isolation switch]C79-400/3.3 Isolation reversing switch

2026-6-19 14:45:15

C79-400/3.3 isolation reversing switch

[Indoor isolation switch]C79-700/3.3 Isolation reversing switch

2026-6-19 14:45:07

C79-700/3.3 isolation reversing switch

[Indoor isolation switch]GNF38-32KV series indoor high-voltage isolation switch

2026-6-19 14:44:59

The GNF38-32KV series indoor isolation switch is designed and manufactured to meet the needs of the development of fixed high-voltage cabinets and ring main units towards compactness and miniaturization. It has a three station structure and a fully insulated bottom plate; And equipped with coaxial locking and a complete mechanical interlocking mechanism, the appearance is compact and small. It is the best optional switch for compact box type switchgear.

5�� Main structural characteristics of GNF38-32KV series indoor high-voltage isolation switch
Adopting the busbar through wall integral insulation bottom plate (APG process), the external insulation creepage distance can reach 24mm/kV, and the insulation performance is good.
The single break point and three station structure ensure that the isolation switch cannot be grounded when closed and cannot be closed when grounded.
Equipped with coaxial manual operation mechanism and position positioning device.

6�� Environmental conditions for the use of GNF38-32KV series indoor high-voltage isolating switches
a. Surrounding air temperature: upper limit+40 �� lower limit -25 ��
b. Altitude below 2000m
c. Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%
d. The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
e. No frequent severe vibrations

GNF38-32KV series indoor high-voltage isolation switch

[Indoor isolation switch]GN2-10 series indoor high-voltage isolation switch

2026-6-19 14:44:50

Product Description
The GN2-12 series indoor AC high voltage isolation switch is a three-phase AC 50Hz high voltage switchgear used in power systems with a rated voltage of 10-35kV, for opening and closing circuits under voltage and no-load conditions. The isolation switch is equipped with CS6-2 manual operating mechanism.
This series of isolation switches is a three-phase linkage type, consisting of a base frame, a shaft and linkage plate, post insulators, conductive switches, and static contacts. The shaft is mounted on the chassis, and a linkage plate is welded to the shaft. It is connected to the switch blade through a pull rod insulator (GN2-40.5T type epoxy glass cloth board insulation rod). The two ends of the rotating shaft extend from the chassis, and either end can be connected to the operating mechanism for opening and closing. This series of isolation switches can be installed horizontally, vertically, or diagonally.
structure

The GN2 indoor three-phase high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts.

Basic Parameters

[Indoor isolation switch]GN2-35T Indoor high voltage isolation switch

2026-6-19 14:44:42

The GN2-10-35 series indoor high-voltage isolation switch is a three-phase AC 50Hz high-voltage switchgear used in power systems with a rated voltage of 10-35kV, for opening and closing circuits under no-load voltage conditions.
Isolation switches with a rated current of 2000A and below are equipped with CS6-2T type manual operating mechanisms, while isolation switches with a rated current of 3000A are equipped with CS7 type manual operating mechanisms.

Main technical parameters of GN2-35T indoor high-voltage isolation switch

Project	unit	Data
rated voltage	KV	ten	twenty	thirty-five
rated current	A	1000, 2000, 3000	four hundred	400, 600, 1000
Rated peak withstand current	KA	80, 85, 100	fifty	52, 64, 70
Rated short-time withstand current	KA	40, 51, 70	fourteen	14. 25, 27.5
Rated short-time duration	S	five

Installation dimensions of GN2-35T indoor high-voltage isolation switch

[Indoor isolation switch]GN27-40.5C/630A-2000A series indoor high-voltage isolation switch

2026-6-19 14:44:34

GN27-40.5C/630A-2000A series indoor high-voltage isolation switch

[Indoor isolation switch]GN10-10~20/4000A-9000A Indoor high voltage isolation switch

2026-6-19 14:44:26

GN10-10-20/4000A-9000A indoor high-voltage isolation switch

[Indoor isolation switch]GN22-12/8000A Indoor high voltage isolation switch

2026-6-19 14:44:17

GN22-12/8000A Indoor High Voltage Isolation Switch

[Indoor isolation switch]GN22-12/6300A Indoor high voltage isolation switch

2026-6-19 14:44:08

GN22-12/6300A Indoor High Voltage Isolation Switch

[Indoor isolation switch]GN22-12C/2000A-4000A Indoor high voltage isolation switch

2026-6-19 14:44:00

GN22-12C/2000A-4000A Indoor High Voltage Isolation Switch

[Indoor isolation switch]GN22-12/2000A-5000A High voltage isolation switch

2026-6-19 14:43:51

GN22-12/2000A-5000A High Voltage Isolation Switch

[Indoor isolation switch]GN16-12/400A-1250A Indoor high voltage isolation switch

2026-6-19 14:43:43

GN16-12/400A-1250A Indoor High Voltage Isolation Switch

[Indoor isolation switch]GN15-12/400A-1250A Indoor high voltage isolation switch

2026-6-19 14:43:34

GN15-12/400A-1250A Indoor High Voltage Isolation Switch

[Indoor isolation switch]GN19-12CST/400A-1250A Indoor high voltage isolation switch

2026-6-19 14:43:26

GN19-12CST/400A-1250A indoor high-voltage isolation switch

[Indoor isolation switch]GN19-12ST/400A-1250A Indoor high voltage isolation switch

2026-6-19 14:43:18

GN19-12ST/400A-1250A indoor isolation switch

[Indoor isolation switch]GN28-12 series indoor high-voltage combination isolation switch

2026-6-19 14:43:10

The GN28-12 series indoor high-voltage combination isolation switch (hereinafter referred to as the isolation switch) is an indoor device with a rated voltage of 12kV three-phase AC 50Hz. Used for voltage and no-load division circuits. Suitable for XGN1 type box cabinet.

Terms of Use

a. The ambient temperature is not higher than+40 �� and not lower than -10 ��
b. The monthly average relative humidity should not exceed 90%
c. Altitude not exceeding 1000m

Structure and Characteristics
GN28-12 type isolation switch is a combination type, consisting of two types: denominator knife isolation switch and line side isolation switch, mainly composed of contacts, contact knives, insulation components, and frames. The busbar isolation switch, line isolation switch, bypass isolation switch, and one set of grounding knife switches on each side of the switch are assembled on a frame, which not only reduces the volume, but also facilitates the installation of the entire set, eliminating the workload of operators hanging and dismantling grounding wires, as well as personal and equipment accidents caused by improper hanging and dismantling of grounding wires. The isolation switch is equipped with a rotating fully mechanical locking mechanism, which has the characteristics of easy and flexible operation, and reliable five prevention functions.

[Indoor isolation switch]GN24-12D type high voltage isolation switch

2026-6-19 14:43:01

Overview of GN24-1D High Voltage Isolation Switch

Environmental conditions for use

1000m altitude
Surrounding air temperature: -30 ��~+40 ��;
Relative humidity of the surrounding environment: daily average not exceeding 95%, monthly average not exceeding 90%;
No severe vibration oscillation impact site;
A place without fire, explosion, corrosive metal, toxic gases that damage insulation, and conductive dust;

GN24-1D High Voltage Isolation Switch Model and Meaning

GN24-1D High Voltage Isolation Switch Appearance and Installation Dimensions

Figure 1, GN24-12 (D) type

Figure 2, GN24-1D (C) type

Figure 3: GN24-1D Type II

Figure 4: GN24-1D (C) Type II

GN24-1D High Voltage Isolation Switch

[Indoor isolation switch]GN38-10 series high-voltage isolating switch

2026-6-19 14:42:53

GN38 lower isolation switch

Lower isolation coaxial right operation three workstations
Manual integrated mechanism
(Capable of grounding and closing)
structural characteristics

1. The isolation switch and grounding switch are integrated into one unit
2. Grounding switch equipment related to short-circuit current capability
3. Isolation and grounding switches have complete mechanical locking
4. The outgoing terminal adopts side installation
5. The height of the cable outlet is effectively guaranteed

[Indoor isolation switch]GN38-10 series high-voltage isolating switch

2026-6-19 14:42:45

GN38-10 series high voltage isolation switch

structural characteristics
The GN38-10 series high-voltage isolating switch adopts a busbar through wall insulation bottom plate, which completely isolates the switchgear busbar room from the circuit breaker room
2. Equipped with a cross axis manual integrated operating mechanism, which not only ensures the mechanical performance of the isolation switch, but also reduces the operating height for convenient operation
3. Single breakpoint three station structure ensures reliable switch operation
GN38-10 series high-voltage isolating switch is equipped with a complete mechanical interlocking device

Coaxial "refers to the transmission main shaft and the operating mechanism shaft being the same shaft
'Off axis' refers to the fact that the main transmission shaft and the operating mechanism shaft are two separate axes, with connecting rods or gears used for transmission in the middle
Integrated mechanism "refers to the combination of isolation switch and operating mechanism, whose external dimensions, installation method, and performance indicators are carefully calibrated before the product leaves the factory.

[Indoor isolation switch]GN24 series isolating switch

2026-6-19 14:42:36

GN24 series isolation switch

GN24-10D/400A
GN24-10DC/400A
GN24-10D/630A
GN24-10DC/630A
GN24-10D/1000A
GN24-10DC/1000A
GN24-10D/1250A
GN24-10DC/1250A

The GN24-10D series indoor high-voltage isolating switch with grounding knife (hereinafter referred to as the isolating switch) is an indoor high-voltage switchgear with a rated voltage of 12KV or below and three-phase AC 50Hz. It is used for breaking and closing circuits in power systems with voltage and no load. The GN24-10D series isolating switch has three working positions: closing, opening, and grounding, and can be operated step by step. It has the anti misoperation performance of preventing live hanging grounding wires and closing with grounding. It is a necessary component to meet the requirements of "three defenses". The grounding contact knife can be used for: when electrical equipment is powered off for maintenance, the semi grounding contact knife can be closed to create a network artificial short circuit, ensuring that maintenance personnel receive reliable "ground potential" protection.

model

rated voltage

rated current

4S thermal stability current

GN24-12D

GN24-12DC

12kV

400A
630A
1000A
1250A
2000A

20kA

31.5kA

[Indoor isolation switch]RH-B series high-voltage isolating switch

2026-6-19 14:42:28

Technical parameters of RH-B series high-voltage isolation switch

Model number	rated voltage	rated current	4S thermal stability current	Dynamic stable voltage	Dynamic stable voltage	Impact withstand voltage
Model number	rated voltage	rated current	4S thermal stability current	Dynamic stable voltage	relatively	Fracture gate	relatively	Fracture gate
RH-B	eleven	forty-four	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	ninety-five	38	forty-two
RH-B	thirty-three	six hundred	twelve thousand and five hundred	thirty-one thousand and five hundred	one hundred and seventy	one hundred and ninety-five	seventy	eighty

RH-B series high-voltage isolation switch

[Indoor isolation switch]GN5 Indoor single-phase high voltage isolation switch

2026-6-19 14:42:20

The GN5 indoor single-phase high voltage isolation switch consists of a base, pillar porcelain insulators, and conductive parts.

Basic parameters of GN5 indoor single-phase high voltage isolation switch

model	Product Code	Rated voltage kV	Maximum working voltage KV	Rated current A	Dynamic stability current KA (peak value)	5-second thermal stability current KA (effective value)	Weight kg
GN5-6/200	seven thousand one hundred and thirty-two	six	six point nine	two hundred	twenty-five point five	ten	four
GN5-6/400	seven thousand one hundred and thirty-three	six	six point nine	four hundred	fifty-two	fourteen	four point five
GN5-6/630	seven thousand one hundred and thirty-four	six	six point nine	six hundred and thirty	fifty-two	twenty	five
GN5-10/200	seven thousand one hundred and thirty-four	ten	eleven point five	two hundred	twenty-five point five	ten	six
GN5-10/400	seven thousand one hundred and thirty-five	ten	eleven point five	four hundred	fifty-two	fourteen	six point five
GN5-10/630	seven thousand one hundred and thirty-seven	ten	eleven point five	six hundred and thirty	fifty-two	twenty	seven
GN5-10/1250	seven thousand one hundred and forty-one	ten	eleven point five	one thousand two hundred and fifty	seventy-five	thirty	seventeen

Appearance and installation dimensions of GN5 indoor single-phase high voltage isolation switch

model	Factory code	Rated voltage kV	Rated current A	Main dimensions (mm)
model	Factory code	Rated voltage kV	Rated current A	H	h	h1	t
GN5-6/200	seven thousand one hundred and thirty-two	six	two hundred	four hundred and twenty	two hundred and twenty	one hundred and thirty-one	six
GN5-6/400	seven thousand one hundred and thirty-three	six	four hundred	four hundred and twenty-five	two hundred and twenty-five	one hundred and thirty-one	eight
GN5-6/630	seven thousand one hundred and thirty-four	six	six hundred and thirty	four hundred and thirty	two hundred and thirty	one hundred and thirty-one	twelve
GN5-10/200	seven thousand one hundred and thirty-five	ten	two hundred	four hundred and forty	two hundred and forty	one hundred and fifty	six
GN5-10/400	seven thousand one hundred and thirty-six	ten	four hundred	four hundred and forty-five	two hundred and forty-five	one hundred and fifty	eight
GN5-10/630	seven thousand one hundred and thirty-seven	ten	six hundred and thirty	four hundred and fifty	two hundred and fifty	one hundred and fifty	twelve

GN5 indoor single-phase high voltage isolation switch

[Indoor isolation switch]GN2-40.5(W) type indoor high-voltage isolation switch

2026-6-19 14:42:11

model	Rated voltage/kV	Rated current/A	Dynamic stability current (peak value)/kV	Thermal stability current (effective value)/kA
model	Rated voltage/kV	Rated current/A	Dynamic stability current (peak value)/kV	10s	6s
GN2-12/2000	twelve	two thousand	eighty	thirty-six
GN2-12/3000	twelve	three thousand	one hundred	fifty
GN2-20/400	twenty	four hundred	fifty	ten
GN2-40.5/400	forty point five	four hundred	fifty	twenty
GN2-40.5/400	forty point five	four hundred	fifty	ten
GN2-40.5/400 (all operating conditions)	forty point five	four hundred	fifty	ten
GN2-40.5/630	forty point five	six hundred and thirty	fifty	twenty
GN2-40.5/630	forty point five	six hundred and thirty	fifty	fourteen
GN2-40.5/630 (all operating conditions)	forty point five	six hundred and thirty	fifty	fourteen
GN2-40.5/2000	forty point five	one thousand	eighty	thirty-one point five
GN2-40.5/2000	forty point five	two thousand	eighty-five	thirty-six
GN2-40.5/2000 (all operating conditions)	forty point five	two thousand	eighty-five	thirty-six
GN2-40.5/630-��	forty point five	six hundred and thirty	forty		sixteen
GN2-40.5/630-��	forty point five	six hundred and thirty	forty		sixteen
GN2-40.5/1250-��	forty point five	one thousand two hundred and fifty	seventy		twenty-five
GN2-40.5/1250-��	forty point five	one thousand two hundred and fifty	seventy		twenty-five

GN2-40.5 (W) type indoor high-voltage isolation switch

[Indoor isolation switch]GNF38-12/630A type indoor ring main unit isolation switch

2026-6-19 14:42:03

The LZFW-35GY current transformer adopts our company's unique technology, which integrates outdoor epoxy resin and silicone rubber into a composite insulation form. It is not a general form of silicone rubber umbrella sheet bonding, and the overall product is firm. It belongs to the new generation of outdoor products. Widely used in outdoor or indoor power systems with a rated frequency of 50 Hz and a rated voltage of 35 kV or below, it is also used for metering, measurement, and monitoring protection.

Characteristics of GNF38-12/630A indoor ring main unit isolation switch
1. This product is made of outdoor epoxy resin, and the non winding part is coated with silicone rubber and fully vacuum cast. It is a fully enclosed insulation and pillar structure. The product fully combines the advantages of good processability and strong heat dissipation performance of outdoor epoxy resin with the strong UV resistance, good water addition, anti fog flash and anti pollution flash ability of silicone rubber, while complementing each other's shortcomings, to achieve good internal and external insulation performance. The product has anti fog and anti humidity, anti pollution flash, excellent resistance to cold and hot shock, good environmental adaptability, strong hydrophobicity and anti UV linear ability, anti-aging and arc resistance, long service life, and can fully meet outdoor use conditions.
2. The product adopts a ring-shaped ultra microcrystalline alloy iron core and imported high-quality silicon steel sheet coil iron core. Has high metrological accuracy, stable error, and low instrument security factor; Stable protection level performance and high accuracy limit coefficient. The transformer has the characteristics of low power consumption and minimal residual magnetism.
3. According to user requirements, production can be done in various ratios and multi-level combinations. Beneficial for power station expansion and effectively saving investment.
4. The product can be installed independently or used in conjunction with outdoor circuit breakers and other outdoor equipment. It has the characteristics of easy installation and replacement, and maintenance free use.

Usage conditions for GNF38-12/630A indoor ring main unit isolation switch
Fully meet the high-altitude outdoor product usage conditions specified in IEC185-87 and GB1208-1997, as well as the requirements of Level II pollution prevention level.

Basic technical parameters of GNF38-12/630A indoor ring main unit isolation switch
1. Rated voltage 35 kV
2. Rated altitude �� 4000 meters
3. Rated insulation level 40.5/95/185 kV
4. Rated primary current 20-3000 A
5. Rated secondary current 5A or 1A
6. Partial discharge capacity in accordance with GB1208-1997 standard, apparent discharge capacity �� 20 pC
7. Dynamic thermal stability current: 1 second thermal current=110 I1n; Dynamic stability current=2.5 Ith
8. Rated primary current, level combination, and corresponding rated output relationship Rated primary current

Overview

The GNF38-12KV series indoor ring main unit isolation switch is designed and manufactured to meet the needs of the development of fixed high-voltage cabinets and ring main units towards compactness and miniaturization. It has a three station structure and a fully insulated bottom plate; And equipped with coaxial locking and a complete mechanical interlocking mechanism, the appearance is compact and small. It is the best optional switch for compact box type switchgear.

Switch model and meaning

Reference standards

GB1985-1989 AC High Voltage Disconnectors and Grounding Switches
IEC129-84 AC isolating switches and grounding switches

Normal usage conditions

a. Surrounding air temperature: upper limit+40 �� lower limit -25 ��
b. Altitude not exceeding 2000m
c. Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%
d. The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
e. No frequent severe vibrations

Main technology of GNF38-12/630A indoor ring main unit isolation switch

Main structural features

Adopting busbar through wall integral insulation bottom plate (APG process), the external insulation creepage distance can reach 24MM/kV, and the insulation performance is good.
The single break point and three station structure ensure that the isolation switch cannot be grounded when closed and cannot be closed when grounded.
Equipped with coaxial manual operation mechanism and position positioning device.

Installation and debugging

After opening the box, the product should be checked for any damage or rust, the product nameplate and certificate of conformity should match the purchase order, and the packing list should match the actual product and be in good condition.
Clean the surface of dust and dirt.
Check if the screws at the main connecting parts of the switch are loose. If so, tighten and adjust them.
Apply industrial Vaseline oil to the mechanical friction parts.
According to the position of the high-voltage cabinet and the ring main unit, installation is required, and attention should be paid to the insulation distance between the live part and the ground when the switch is opened, which should be greater than 125cm.
After the switch is installed, it should be operated without load 3-5 times, and the opening, closing, and grounding signs should be checked to ensure that they match the corresponding operation. There should be no abnormal phenomena such as jamming during operation.
The pressure of the contact spring between the moving and stationary contacts has been adjusted before leaving the factory, and users do not need to adjust it again.
The connection between the switch and the busbar must have good contact and be securely fixed.

Usage and Maintenance

The opening, closing, and grounding positions of the switch are determined and locked, and the mechanical interlocking action is performed. The identification of each position is completed by the operating mechanism.
Before operation, it is necessary to check whether the mechanism is safe and reliable.
First, turn the wrench on the panel towards the operating axis, then release it. Insert the handle and rotate it in the direction indicated by the arrow on the panel. Once the operation is in place, the wrench on the panel will automatically return to its original position. Repeat the above steps when operating again.
When the operating mechanism leaves the factory, its internal sliding parts are coated with lubricating grease. If the user finds any obstruction during operation, they can open the front cover and apply lubricating grease to the sliding parts.
The maintenance of the switch is not carried out with electricity, and it is not allowed to pull the switch with load.
During maintenance, the fixing screws of the insulation base and insulation support, the spring compression of the moving contact knife, the shaft retaining ring on the connecting pin between the insulation rod and the insulation crank arm, and the opening on the connecting pin between the insulation rod and the moving contact knife should be carefully inspected. If there are any abnormalities, they should be adjusted and maintained in a timely manner.
When the contact positions of the static contact and the moving contact blade are found to be burnt or blackened during maintenance, it is not allowed to use a file to lower the contact points. Only sandpaper can be used to polish them, and then industrial Vaseline grease can be applied.
During maintenance, attention should be paid to observing the deformation of the clamping spring of the moving contact blade. If there is any deformation, it should be adjusted or replaced in a timely manner.

Appearance and installation dimensions

Installation method

GNF38-12/630A type indoor ring main unit isolation switch

Rated primary current ��A��	Accurate level combination	Rated secondary output (VA)
		0.2��0.2S��	zero point five	10P10	10P20
20~600	0.2��0.2S��/10P	fifteen	---	fifty	twenty-five
	0.5/10P	---	twenty-five
	10P/10P	---	---
	0.2 (or 0.2S)/0.5/10P	fifteen	twenty-five	forty	twenty
	0.2 (or 0.2S)/10P/10P

[Indoor isolation switch]DGN-12 type indoor high-voltage isolation switch

2026-6-19 14:41:55

name	unit	parameter
rated voltage	kV	twelve
rated frequency	Hz	fifty
rated current	A	630, 1250
Rated short-time withstand current	kA	20. 31.5
Rated peak withstand current	kA	50, 80
Rated short-time continuous current	S	four
Rated insulation level 1-minute power frequency withstand voltage Lightning impulse withstand voltage (peak value)	kV kV	forty-two seventy-five

DGN-12 indoor high-voltage isolation switch

[Indoor isolation switch]GN19-35 series high-voltage isolating switch

2026-6-19 14:41:46

GN19-35 series high voltage isolation switch

[Indoor isolation switch]DGN-12D series high-voltage isolating switch

2026-6-19 14:41:38

DGN-12D series high-voltage isolation switch

[Indoor isolation switch]GN36-12 series high-voltage isolating switch

2026-6-19 14:41:30

GN36-12 series high-voltage isolation switch

[Indoor isolation switch]GN24-10(C) series high-voltage isolating switch

2026-6-19 14:41:21

GN24-10 (C) series high-voltage isolating switch

[Indoor isolation switch]GN16-35/2000 High voltage and high current isolation switch

2026-6-19 14:41:13

GN16-35/2000 High Voltage and High Current Isolation Switch

[Indoor isolation switch]GN19 Indoor three-phase high voltage isolation switch

2026-6-19 14:41:04

The GN19-10 indoor three-phase high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts.
The GN19-10C indoor three-phase high voltage isolation switch consists of a base, a pair of ceramic insulators, a ceramic sleeve, an operating ceramic insulator, and a conductive part.

model	rated voltage kv	Maximum operating voltage kv	rated current A	Dynamic stable current KV (peak value)	10s thermal stability current KA (effective value)	weight kg
GN19-10/400	ten	eleven point five	four hundred	thirty-one point five	twelve point five	twenty-seven
GN19-10/630	ten	eleven point five	six hundred and thirty	fifty	twenty	twenty-eight
GN19-10/1250	ten	eleven point five	one thousand two hundred and fifty	one hundred	forty	fifty-two
GN19-10C1/400	ten	eleven point five	four hundred	thirty-one point five	twelve point five	thirty-nine
GN19-10C1/630	ten	eleven point five	six hundred and thirty	fifty	twenty	forty
GN19-10C1/1250	ten	eleven point five	one thousand two hundred and fifty	one hundred	forty	seventy
GN19-10C2/400	ten	eleven point five	four hundred	thirty-one point five	twelve point five	thirty-nine
GN19-10C2/630	ten	eleven point five	six hundred and thirty	fifty	twenty	forty
GN19-10C2/1250	ten	eleven point five	one thousand two hundred and fifty	one hundred	forty	seventy
GN19-10/1000	ten	eleven point five	one thousand	eighty	thirty-one point five	forty-nine
GN19-10C1/1000	ten	eleven point five	one thousand	eighty	thirty-one point five	sixty-five

GN19 indoor three-phase high voltage isolation switch

[Indoor isolation switch]GN10 Type Indoor Single (Three) Phase High Voltage Isolation Switch

2026-6-19 14:40:56

The GN10 indoor single-phase high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts. Can be used for single-phase or three-phase connection. Can be operated with manual or electric mechanisms.

model	rated Voltage KV	It's a senior engineer Operating voltage KV	Rated current A	Dynamic stability current KA (Peak value)	10s thermal stability current KA (Effective value)	Main dimensions (mm)		Weight kg
model	rated Voltage KV	It's a senior engineer Operating voltage KV	Rated current A	Dynamic stability current KA (Peak value)	10s thermal stability current KA (Effective value)	H	h	Weight kg
GN10-10/3000	ten	twelve	three thousand	one hundred and sixty	70-5	six hundred and forty-five	three hundred and eighty-five	��54
GN10-10/4000	ten	twelve	four thousand	one hundred and sixty	85-5	seven hundred	four hundred and twenty	��60
GN10-10/5000	ten	twelve	five thousand	two hundred and twenty-four	74-10	-	-	��135
GN10-10/6000	ten	twelve	six thousand	two hundred and twenty-four	74-10	-	-	��145
GN10-20/3000	twenty	twenty-four	three thousand	one hundred and sixty	70-5	eight hundred and ten	four hundred and sixty	��77
GN10-20/4000	twenty	twenty-four	four thousand	one hundred and sixty	85-5	eight hundred and sixty	four hundred and ninety-five	��87
GN10-20/5000	twenty	twenty-four	five thousand	two hundred and twenty-four	74-10	-	-	��150
GN10-20/6000	twenty	twenty-four	six thousand	two hundred and twenty-four	74-10	-	-	��160
GN10-20/8000	twenty	twenty-four	eight thousand	two hundred and twenty-four	74-10	-	-	��180
GN10-20/10000	twenty	twenty-four	ten thousand	two hundred and twenty-four	74-10	-	-	��180

GN10 indoor single-phase and three-phase high-voltage isolation switch

[Indoor isolation switch]GN6,GN8 Indoor three-phase high voltage isolation switch

2026-6-19 14:40:48

The GN6-6 and 10T indoor three-phase high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts.
GN8-6, 10T - ��, �� type indoor three-phase high voltage isolation switches consist of a base, pillar porcelain insulators, porcelain sleeves, operating insulators, and conductive parts.
GN8-6, 10T-III indoor three-phase high voltage isolation switch consists of a base, porcelain bushing, operating porcelain insulator, and conductive part

model	rated voltage kv	Maximum operating voltage kv	rated current A	Dynamic stable current KA (peak value)	5-second thermal stability current KA (effective value)
GN6-6T/200, GN8-6T/200- I, II, III	six	six point nine	two hundred	twenty-five point five	ten
GN6-6T/200, GN8-6T/400- I, II, III	six	six point nine	four hundred	forty	fourteen
GN6-6T/630, GN8-6T/630- I, II, III	six	six point nine	six hundred and thirty	fifty-two	twenty
GN6-10T/200, GN8-10T/200- I, II, III	ten	eleven point five	two hundred	twenty-five point five	ten
GN6-10T/400, GN8-10T/400- I, II, III	ten	eleven point five	four hundred	forty	fourteen
GN6-10T/630, GN8-10T/630- I, II, III	ten	eleven point five	six hundred and thirty	fifty-two	twenty
GN6-10T/1250, GN8-10T/1250- I, II, III	ten	eleven point five	one thousand two hundred and fifty	seventy-five	thirty
GN6-35T-1250	thirty-five	forty point five	one thousand two hundred and fifty	seventy-five	thirty

[Indoor isolation switch]GN1 Indoor single-phase high voltage isolation switch

2026-6-19 14:40:39

The GN1 indoor single-phase high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts.

model	rated voltage kv	Maximum operating voltage kv	rated current A	Dynamic stable current KA (peak value)	10s thermal stability current KA (effective value)	weight kg
GN1-10/2000	ten	eleven point five	two thousand	eighty-five	thirty-six	thirty-four
GN1-20/400	twenty	twenty-three	four hundred	fifty	ten	thirty-eight
GN1-35/400	thirty-five	forty point five	four hundred	fifty	ten	thirty-eight
GN1-35/630	thirty-five	forty point five	six hundred and thirty	fifty	fourteen	forty

Appearance and installation dimensions

GN1 type indoor single-phase high voltage isolation switch

[Indoor isolation switch]Indoor AC high voltage isolation switch

2026-6-19 14:40:31

GN22-12 (C) Indoor AC High Voltage Isolation Switch Model and Its Meaning

Environmental conditions for use:
+Altitude: not exceeding 1000m;
+Surrounding air temperature: -30 �� to+40 ��;
+Relative humidity of the surrounding environment: daily average not exceeding 95%; Monthly average not exceeding 90%;
+The seismic intensity shall not exceed 8 degrees;
+Safe place: No fire, flammable, explosive, severely polluted, chemically corroded, or violently vibrating places.

Main technical parameters of GN22-12 (C) indoor AC high voltage isolation switch

voltage		KV	twelve
rated frequency		Hz	fifty
rated current		A	1600~2000	2500~3150
Rated short-circuit withstand current		kA	forty	fifty
Rated peak withstand current		kA	one hundred	one hundred and twenty-five
Rated short-time duration		S	four
Rated insulation level	1-minute power frequency withstand voltage	kV	Inter pole, pole to ground 42 fracture 49
	Lightning impulse withstand voltage (peak value)	kV	Inter pole, pole to ground 75 fracture 85

GN22-12 (C) Indoor AC High Voltage Isolation Switch Appearance and Installation Dimensions (The following image can be clicked to enlarge):

Figure 1: Dimensions of GN22-12 Indoor AC High Voltage Isolation Switch

Model number	A	B	C	D	E
GN22-12/1600-2000	two hundred and fifty-five	three hundred and five	five hundred and twenty-seven	four hundred and ninety	fifty
GN22-12/2500-3150	two hundred and sixty-two	three hundred and twenty-five	five hundred and thirty-eight	four hundred and ninety-four	sixty

Figure 2: Dimensions of GN22-12C Indoor AC High Voltage Isolation Switch

GN22-12C/1600-2000 High Voltage Isolation Switch Terminal Diagram GN22-12C/2500-3150 High Voltage Isolation Switch Terminal Diagram

model	A	B	C	D	E
GN22-12C/1600-2000	five hundred and thirty-seven	two hundred and fifty-five	three hundred and five	eight hundred and seven	five hundred and eighty
GN22-12C/2500-3150	five hundred and thirty-nine	two hundred and sixty-seven point five	three hundred and thirty	eight hundred and eighty	six hundred and thirty

GN22-12 (C) Indoor AC High Voltage Isolation Switch

[Indoor isolation switch]GN16-7.2/400-20 High voltage isolation switch

2026-6-19 14:40:23

model	rated voltage	rated current	Rated short-time Withstand current	Mechanical lifespan (times)	Rated short circuit duration	Overall dimensions	installation dimensions	Weight (KG)
GN16-7.2/400-20	seven thousand and two hundred	four hundred	20/2	two thousand		530360360		twelve

GN16-7.2/400-20 High Voltage Isolation Switch

[Indoor isolation switch]GN8-3.6 High voltage isolation switch

2026-6-19 14:40:14

GN8-3.6 High Voltage Isolation Switch

model	rated voltage	rated current	Rated short-time Withstand current	Rated peak value Withstand current	Rated short circuit duration	Overall dimensions	installation dimensions	Equipped with a handle
GN8-3.6/S400-20	three thousand and six hundred	four hundred	eight	twenty	four	480248170	370*175

GN8-3.6 High Voltage Isolation Switch

[Indoor isolation switch]GN10 High voltage isolation switch

2026-6-19 14:40:06

GN10 High Voltage Isolation Switch

[Indoor isolation switch]GN9-3.6/S200-5 High voltage isolation switch

2026-6-19 14:39:58

GN9-3.6/S200-5 indoor one-way isolation switch, suitable for 3600V level electrical control cabinets, plays the role of isolating circuits, mainly used in the fields of petroleum, chemical industry, etc.

SGN9-3.6/S200-5 indoor bidirectional isolation switch is used in 3600V electrical control cabinets to isolate circuits, ground circuits, or phase change circuits.

GN9-3.6/S200-5 High Voltage Isolation Switch

model	rated voltage	rated current	Rated short-time Withstand current	Rated peak value Withstand current	Rated short circuit duration	Overall dimensions	installation dimensions	Equipped with a handle
GN9-3.6/S200-5	three thousand and six hundred	two hundred	two	five	two	320224175	184*100	HD12-200
SGN9-3.6/S200-5	three thousand and six hundred	two hundred	two	five	two	300260175	230*100	HD13-200

[Indoor isolation switch]GN25-10 type high current and high voltage isolation switch

2026-6-19 14:39:49

GN25-10/2000�� The 3000 type household three high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts.

Basic parameters of GN25-10 high current and high voltage isolation switch

model	Product Code	rated voltage	Maximum working voltage KV	Rated current A	Dynamic stability current KA (peak value)	5-second thermal stability current KA (effective value)	Weight kg
GN25-10T/2000	seventy-one thousand one hundred and fifteen	ten	eleven point five	two thousand	one hundred	forty	seventy-four
GN25-10T/3000	seventy-one thousand one hundred and nineteen	ten	eleven point five	three thousand one hundred and fifty	one hundred and twenty-five	fifty	one hundred

GN25-10 high current and high voltage isolation switch

[Indoor isolation switch]GN27-40.5 series indoor high-voltage isolation switch

2026-6-19 14:39:41

GN27-40.5 indoor high-voltage isolation switch is a new type of product. Suitable for rated voltage
40.5V�� In a 50Hz AC power system, it is designed and produced as a replacement for old products to open and close circuits with voltage and no load. Can be paired with high-voltage switchgear or used independently. Equipped with CS6-2 operating mechanism. All adopt reinforced insulation design, which can meet the requirements for use in Class II polluted areas. Product features:

Design scientifically, reasonably, and structurally innovative;
Multi contact, rotating contact, good self-cleaning ability, and improved heat dissipation capability;
The contact point is within two surfaces, with low operating torque, high contact pressure, and easy adjustment;
Adopting a large climbing distance to enhance insulation capability and withstand voltage to meet the highest requirements;
Installing bearings on the shaft increases its service life and makes it easy to operate.

Technical parameters of GN27-40.5 series indoor high-voltage isolation switch

Rated voltage kV	Rated current A	4s rated short-time withstand current	Rated peak withstand current	1-minute power frequency withstand voltage kV	Lightning impulse withstand voltage kV
forty point five	six hundred and thirty	twenty	fifty	95/118	185/125
forty point five	one thousand two hundred and fifty	thirty-one point five	eighty
forty point five	two thousand	forty	one hundred

model	Rated voltage KV	Rated current A	Maximum working voltage KV	Dynamic stability current KA	Thermal stability current KA-S
GN27-35/630	thirty-five	six hundred and thirty	forty point five	fifty	16-6
GN27-35/1250	thirty-five	one thousand two hundred and fifty	forty point five	seventy	25-6
GN27-35/1600	thirty-five	one thousand and six hundred	forty point five	seventy	36-10
GN27-35-C1��C2/630	thirty-five	six hundred and thirty	forty point five	fifty	16-6
CN27-35C1��C2/1250	thirty-five	one thousand two hundred and fifty	forty point five	seventy	25-6
GN27-35C1��C2/1600	thirty-five	one thousand and six hundred	forty point five	eighty-five	36-10


GN27-35/630�� Outline and installation diagram of 1250 and 1600 isolation switches

GN27-35C2/630�� Appearance and installation diagram of 1250 and 1600 isolation switches

GN27-35C1-630�� Appearance and installation diagram of 1250 and 1600 isolation switches

Ordering Instructions
When placing an order, please specify the product model, rated voltage, rated current, and if installing composite insulators with H

[Indoor isolation switch]GN30-12(D) Rotating indoor high-voltage isolation switch

2026-6-19 14:39:32

Environmental conditions for use:
+Altitude: 1000-3000m;
+Surrounding air temperature: upper limit+40 ��, lower limit -10 ��;
+Relative humidity of the surrounding environment: daily average not exceeding 95%, monthly average not exceeding 90%;
+The seismic intensity shall not exceed 8 degrees;
+Places without severe dust, chemical corrosion, and explosive substances;
+No places with frequent and severe vibrations.

Main technical parameters of GN30-12 (D) rotary indoor high-voltage isolation switch

model	rated voltage kv	Maximum operating voltage kv	rated current A	Dynamic stable current KA (peak value)	4s thermal stability current KA (effective value)
GN30-10/630-20	ten	eleven point five	six hundred and thirty	fifty	twenty
GN30-10/100-31.5	ten	eleven point five	one hundred	eighty	thirty-one point five
GN30-10/1250-31.5	ten	eleven point five	one thousand two hundred and fifty	eighty	thirty-one point five
GN30-10/2000-40	ten	eleven point five	two thousand	one hundred	forty
GN30-10/2500-40	ten	eleven point five	two thousand and five hundred	one hundred	forty
GN30-10/3150-40	ten	eleven point five	three thousand one hundred and fifty	one hundred	forty
GN30-10D/630-20	ten	eleven point five	six hundred and thirty	fifty	twenty
GN30-10D/1000-31.5	ten	eleven point five	one thousand	eighty	thirty-one point five
GN30-10D/1250-31.5	ten	eleven point five	one thousand two hundred and fifty	eighty	thirty-one point five
GN30-10D/2000-40	ten	eleven point five	two thousand	one hundred	forty
GN30-10D/2500-40	ten	eleven point five	two thousand and five hundred	one hundred	forty
GN30-10D/3150-40	ten	eleven point five	three thousand one hundred and fifty	one hundred	forty

GN30-12 (D) Rotary Indoor High Voltage Isolation Switch Appearance and Installation Dimensions

Figure 1 Outline drawing of GN30-12/630, 1000 indoor AC high voltage isolation switch 630A wiring terminal diagram

Figure 2: Outline drawing of GN30-12/630, 1000 indoor AC high voltage isolation switch 1000A wiring terminal diagram

Figure 3 Outline drawing of GN30-12D/630, 1000 indoor AC high voltage isolation switch

CN30-12				CN30-12D
630A		1000A		630A			1000A
A	C	A	C	A	B	C	A	B	C
��560	��315	��580	��332	��550	��610	��240	��575	��615	��245

Figure 4 Outline drawing of GN30-12/1250 indoor AC high voltage isolation switch

[Indoor isolation switch]GN2 series indoor high-voltage isolation switch GN2-10/2000 GN2-10/3000

2026-6-19 14:39:23

structure
The GN2 indoor three-phase high voltage isolation switch consists of a base, pillar porcelain insulators, operating porcelain insulators, and conductive parts. Among them: GN2-35/630-I, II; The 1250-I and II type indoor three-phase high voltage isolation switches consist of a base, pillar porcelain insulators, porcelain sleeves, operating porcelain insulators, and conductive parts.

Basic parameters of GN2 series indoor high-voltage isolation switch

model	Product Code	Rated voltage kV	Maximum working voltage KV	Rated current A	Dynamic stability current KA (peak value)	Thermal stability current KA (effective value)		Weight kg
model	Product Code	Rated voltage kV	Maximum working voltage KV	Rated current A	Dynamic stability current KA (peak value)	10s	6s	Weight kg
GN2-10/2000	seven thousand one hundred and fifty-one	ten	eleven point five	two thousand	eighty	thirty-six		seventy-nine
GN2-10/3000	seven thousand one hundred and fifty-two	ten	eleven point five	three thousand	one hundred	fifty		one hundred and fifty-seven
GN2-20/400	seven thousand one hundred and fifty-five	twenty	twenty-three	four hundred	fifty	ten		seventy-one
GN2-35/400	seven thousand one hundred and fifty-seven	thirty-five	forty point five	four hundred	fifty	ten		one hundred and four
GN2-35/400 (all operating conditions)	seventy-one thousand four hundred and two	thirty-five	forty point five	four hundred	fifty	ten		one hundred and fourteen
GN2-35/630	seven thousand one hundred and fifty-eight	thirty-five	forty point five	six hundred and thirty	fifty	fourteen		one hundred and ten
GN2-35/630 (all operating conditions)	seventy-one thousand four hundred and three	thirty-five	forty point five	six hundred and thirty	fifty	fourteen		one hundred and nineteen
GN2-35/2000	seven thousand one hundred and sixty-four	thirty-five	forty point five	two thousand	eighty-five	thirty-six		one hundred and ninety-five
GN2-35/2000 (all operating conditions)	seventy-one thousand four hundred and four	thirty-five	forty point five	two thousand	eighty-five	thirty-five		two hundred and six
GN2-35/630-��	seven thousand one hundred and ninety-five	thirty-five	forty point five	six hundred and thirty	forty		sixteen	two hundred and twelve
GN2-35/630-��	seven thousand one hundred and ninety-six	thirty-five	forty point five	six hundred and thirty	forty		sixteen	two hundred and twelve
GN2-35/1250-��	seven thousand one hundred and ninety-seven	thirty-five	forty point five	one thousand two hundred and fifty	seventy		twenty-five	two hundred and thirty-one
GN2-35/1250-��	seven thousand one hundred and ninety-eight	thirty-five	forty point five	one thousand two hundred and fifty	seventy		twenty-five	two hundred and thirty-one

GN2 series indoor high-voltage isolation switch appearance and installation dimensions

model	Product Code	Main dimensions (mm)
model	Product Code	L	L1	H	h	A	A1	A1	B
GN2-10/2000	seven thousand one hundred and fifty-one	one thousand one hundred and fifty	one hundred and sixty	five hundred and eighty-two	three hundred and twenty-seven	nine hundred and ten	three hundred and fifty	one hundred and fifty	three hundred and sixteen
GN2-10/3000	seven thousand one hundred and fifty-two	one thousand two hundred and forty	one hundred and sixty	six hundred and fifty-five	three hundred and sixty	nine hundred and sixty-six	three hundred and fifty	one hundred and fifty	four hundred and eighty
GN2-20/400	seven thousand one hundred and fifty-five	one thousand one hundred and fifty	two hundred and fifty	eight hundred	four hundred and fifty	nine hundred and eight	three hundred and fifty	one hundred and twenty	four hundred and fifty
GN2-35/400	seven thousand one hundred and fifty-seven	one thousand five hundred and thirty	three hundred and eighty	nine hundred and fifty	five hundred and twenty	one thousand and one hundred	four hundred and fifty	one hundred and seventy	six hundred and thirty-five
GN2-35/630	seven thousand one hundred and fifty-eight	one thousand five hundred and thirty	three hundred and eighty	nine hundred and sixty	five hundred and thirty-five	one thousand and one hundred	four hundred and fifty	one hundred and seventy	six hundred and thirty-five

GN2 series indoor high-voltage isolation switch

[Indoor isolation switch]GN19-12(C) series indoor AC high voltage isolation switch

2026-6-19 14:39:15

The GN19-12 (C) series indoor AC high voltage isolation switch is suitable for use in AC 50Hz, rated voltage 12kV and below power systems. It is equipped with a manual operating mechanism and is used as a switching device when there is voltage but no load.

The performance of GN19-12 (C) series indoor AC high voltage isolation switch meets the standard requirements of "AC high voltage isolation switch and grounding switch".

Environmental conditions for use
1. Altitude not exceeding 1000m;
2. Surrounding air temperature: upper limit+40 ��, lower limit -30 ��;
3. Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
4. The seismic intensity shall not exceed 8 degrees;
5. There is no fire, explosion hazard, serious pollution, chemical corrosion, or severe vibration in the area.

Main technical parameters

model	Rated voltage (KV)	Rated current (A)	4S rated short-time withstand current (effective value) (KA)	Rated peak withstand current (KA)
GN19-12/S400-12.5	twelve	four hundred	twelve point five	thirty-one point five
GN19-12/S630-20	twelve	six hundred and thirty	twenty	fifty
GN19-12/S1000-31.5	twelve	one thousand	thirty-one point five	eighty
GN19-12/S1250-31.0	twelve	one thousand two hundred and fifty	thirty-one point five	eighty
GN19-12C/S400-12.5	twelve	four hundred	twelve point five	thirty-one point five
GN19-12C/S630-20	twelve	six hundred and thirty	twenty	fifty
GN19-12C/S1000-31.5	twelve	one thousand	thirty-one point five	eighty
GN19-12C/S1250-31.5	twelve	one thousand two hundred and fifty	thirty-one point five	eighty

Appearance and installation dimensions

760)this.width=760;" border=0 hspace=0 alt="GN19-12 (C) series indoor AC high voltage isolation switch external dimensions" align=absMiddle src="/uploadfiles/200610/2006102016260497.jpg" width=274 onload="javascript:if(this.width>760)this.width=760;" height=307>
760)this.width=760;" border=0 hspace=0 alt="GN19-12 (C) installation dimensions" align=absMiddle src="/uploadfiles/200610/20061020162619363.jpg" width=505 onload="javascript:if(this.width>760)this.width=760;" height=307>

Figure 1 GN19-12 series

760)this.width=760;" border=0 hspace=0 alt="GN19-12 (C) characteristic curve" align=absMiddle src="/uploadfiles/200610/20061020162630475.jpg" width=374 onload="javascript:if(this.width>760)this.width=760;" height=304>
760)this.width=760;" border=0 hspace=0 alt="GN19-12 (C) wiring diagram" align=absMiddle src="/uploadfiles/200610/20061020162643666.jpg" width=505 onload="javascript:if(this.width>760)this.width=760;" height=307>

Figure 2 GN19-12C series Fig

760)this.width=760;" border=0 hspace=0 alt="GN19-12 (C) series indoor AC high voltage isolation switch terminal diagram" align=absMiddle src="/uploadfiles/200610/20061020162654841.jpg" width=500 onload="javascript:if(this.width>760)this.width=760;" height=212>
GN19-12(C)/630/400 GN19-12(C)/1000/1250

Figure 3: Dimensions of Wiring Terminals

model	A	B	C
GN19-12/400	four hundred and ninety	four hundred and thirty-six	4.14×24
GN19-12/630	four hundred and ninety	four hundred and thirty-six	4.14×24
GN19-12/1000/1250	five hundred and ten	five hundred and thirty	4.18×28
GN19-12C/400	four hundred and sixty	six hundred and twenty-five	4.14×24
GN19-12C/630	four hundred and sixty	six hundred and twenty-five	4.14×24
GN19-12C/1000/1250	five hundred and five	seven hundred and forty-five	4.14×28

[Outdoor isolation switch]GW1-12/3150A outdoor high-voltage isolation switch

2026-6-19 14:25:16

GW1-12/3150A Outdoor High Voltage Isolation Switch

[Outdoor isolation switch]GW18-27.5 outdoor high-voltage isolation switch

2026-6-19 14:25:08

The GW18-27.5 outdoor high-voltage isolation switch is suitable for use in electrified railway power systems with a rated frequency of 50Hz and a rated voltage of 27.5KV, and is used for voltage and no-load lines.

Main technical parameters of GW18-27.5 outdoor high-voltage isolation switch

serial number	name			unit	data
one	rated voltage			kV	twenty-seven point five
two	Rated insulation level	1-minute power frequency withstand voltage	to the ground		eighty
			fracture		eighty
		Lightning impulse withstand voltage (Peak value)	to the ground		two hundred
			fracture		two hundred and thirty
three	rated current			A	one thousand two hundred and fifty
four	Maximum operating voltage			kV	thirty-one point five
five	Peak withstand current			kA	sixty-three
six	Short time withstand current			kA-S	25-2
seven	weight			kg	one hundred and twenty

[Outdoor isolation switch]BC-BJB Transformer neutral point gap protection device

2026-6-19 14:25:00

The BC-BJB transformer neutral point gap protection device is specifically designed for the neutral points of 110KV, 220KV, and 330KV power transformers to achieve two different operating modes: grounded or ungrounded operation of the transformer neutral point.

Technical specifications
The technical data of BC-BJB type neutral grounding protection device is shown in the following table:

Product Model

Transformer rating
Constant voltage
Kv

Neutral point withstand voltage of transformer

disconnecting switch

Zinc oxide lightning arrester

discharge gap

current transformer

Lightning full wave and cutoff withstand voltage
kV
(Peak value)

1-minute power frequency
kV
(Effective value)

rated current
A

Operation
institution

rated
voltage
kV
(Effective value)

Continuous operation
Line voltage
kV
(Effective value)

8/20 �� s lightning
Residual impulse current
Voltage kV
(Peak value)

Power frequency discharge
Voltage kV
±10%
(Effective value)

type

transformation ratio

BC-BJB-110

one hundred and ten

two hundred and fifty

ninety-five

four hundred

CS8-5 (Hand)
Dynamic or CJ6
(Electric)

seventy-two

fifty-eight

one hundred and three

one hundred and eighty-six

eighty-three

epoxy resin
Pouring full seal
Closed pillar type
10kV

100/5
200/5
300/5
400/5
500/5
600/5

BC-BJB-220

two hundred and twenty

four hundred

two hundred

four hundred

fifty-eight

one hundred and sixteen

two hundred and five

three hundred and twenty

one hundred and sixty-six

Terms of Use
1. Suitable for indoor and outdoor use.
2. Environmental temperature: not lower than -40 ��, not higher than 60 ��; Relative humidity: not exceeding 95% (25 ��).
3. The altitude should not exceed 3000m, and if it exceeds 3000m, it can be customized according to the actual situation.
4. Areas with seismic intensity of 7 degrees or below; The maximum wind speed shall not exceed 35m/s.
5. Grid frequency: 58-62Hz (60Hz system), 48-52Hz (50Hz system).
6. The air in the installation site should not contain chemical corrosive gases and vapors, and there should be no explosive dust.

Installation requirements
1. The equipment can be lifted using the four mounting holes on the base, and the lifting rope should not be tied to the porcelain column to prevent damage to the equipment.
2. The channel steel bracket for fixing the operating mechanism and the steel pipe from the operating mechanism to the conductive rod shaft of the isolation switch are not within the scope of supply of this device. All are made on site by the installation unit, and the length and size are determined on site.
3. The equipment should be reliably grounded.
4. The appearance and dimensions of the product shall be subject to the actual supply.
5. The installation of the isolation switch can refer to the installation instructions for the GW8 or GW13 series neutral point isolation switch in the attachment.

Instructions for Use
1. The neutral point current transformer of the transformer is generally installed on the transformer outlet bushing and is not included in this device. The wiring diagram of this device is shown in the figure.
When placing an order, the rated voltage of the transformer, the transformation ratio of the current transformer, the rated current of the isolation switch, the form of the operating mechanism, and the rated voltage of the zinc oxide lightning arrester should be informed. When not specifically specified, delivery will be made according to the technical data standard configuration in this manual.
3. The secondary side of the current transformer has two secondary stages of 0.5/10P. For measurement and protection purposes. When not in use, it should be short circuited.
4. The cross-sectional area and type of the wire connected to the neutral point of the transformer are determined by the user based on the actual current.

[Outdoor isolation switch]GW5-12/17.5 series outdoor high-voltage isolation switch

2026-6-19 14:24:51

GW5-12/17.5 series outdoor high-voltage isolation switch

[Outdoor isolation switch]GW4-20 series outdoor high-voltage isolation switch

2026-6-19 14:24:43

The GW4-20 series outdoor high-voltage isolation switch is a maintenance free outdoor AC high-voltage isolation switch with light operating torque, manufactured in accordance with GB1985-89 "AC High Voltage Isolation Switches and Grounding Switches" and the specific requirements of electrified railways. Rated current: 200, 400, 630, 1250A. Suitable for use in power systems with a frequency of 50Hz and a rated voltage of 20KV, as a time division circuit with voltage and no load, and also for use in railway automatic block signaling devices. And it can be used at a single level. The anti fouling isolation switch can meet the requirements of users in heavily polluted areas and effectively solve the problem of pollution flashover that occurs during the operation of the isolation switch.
The GW4-20 (G) TQ (D) (A) (B) series light operating torque maintenance free outdoor AC high-voltage isolation switch is a new generation of outdoor products suitable for railway self closing, through power supply remote control systems and railway station power supply systems. Equipped with CX-1 electric mechanism, it can easily interface with remote control systems to achieve remote control, remote signaling, and remote sensing.
This series of products includes the following varieties:
There are three types of grounding switches: ungrounded, single grounded, and double grounded.
Classified by usage area: ordinary type, stain resistant type, high source type.
This series of products meets the requirements of national standards and IEC standards. This series of products has good earthquake resistance and can meet the requirement of a seismic intensity of 9 degrees (horizontal acceleration of 4.9m/S2 and vertical acceleration of 2.45m/s2).
product structure
The GW4-20 series AC high voltage isolation switch consists of three single-phase components, which have a double column structure and are mainly composed of bottom and pillar insulation and conductive parts. The first phase has two insulated pillars installed on the bearing seats at both ends of the base, connected by cross connecting rods, and can rotate horizontally. The conductive switch is divided into two halves and fixed on the pillar insulator respectively, with the contact point between the two ceramic pillars.
When the operating mechanism is activated, it drives one post of the insulator to rotate 90 degrees, and the other insulating post also rotates 90 degrees simultaneously due to the transmission of the connecting rod, so the switch blade opens and closes in the same direction. To ensure the correct operation sequence between the isolation switch and the grounding switch, a mechanical interlocking device is installed on the product or mechanism to ensure the sequential action of main opening ground closing ground opening main closing.
GW4-20TQ (A) (B) type matching mechanism: CX-1 electric motor mechanism or CS11-1, CS11 (G), CS8-6D manual mechanism

[Outdoor isolation switch]GW4-27.5T(D)(W) Outdoor AC High Voltage Isolation Switch for Electrified Railway

2026-6-19 14:24:35

1�� Purpose:
GW4-27.5T (D) (W) outdoor AC high voltage isolation switch for electrified railways is an outdoor high voltage electrical equipment with a frequency of 50HZ, used for switching AC 27.5kV contact network high voltage lines under voltage and no-load conditions, as well as for electrically isolating high-voltage busbars, circuit breakers and other electrical equipment under maintenance from live high voltage lines. It can also be used to separate and combine very small capacitor currents and inductor currents.
2�� Environmental conditions for use
1. Altitude not exceeding 1000m; 2000m
2. Environmental temperature: upper limit+40 ��, lower limit -30 ��;
3. Wind speed not exceeding 35m/s;
4. The seismic intensity shall not exceed 8 degrees;
5. Insulator pollution level: Anti pollution type is Class III heavy pollution (salt density 0.3 milligrams per square centimeter);
6. Installation location: Outdoor concrete single pole pole.

4�� Structure
The GW4-27.5T (D) (W) type outdoor AC high voltage isolation switch for electrified railways has reliable performance, simple structure, flexible installation method, easy maintenance, wide applicability, and strong versatility.
The GW4-27.5T outdoor isolation switch is a high-voltage electrical device composed of a single pole isolation switch, and is also a basic unit derived from other structures. It is referred to as a common isolation switch below.
W4-27.5T (D) outdoor isolation switch is made by adding a grounding knife to a regular isolation switch, which is divided into two types: one-time operation type and double operation type, hereinafter referred to as grounding type isolation switch.
The GW4-27.5T (D) W outdoor isolation switch is a modification of the ordinary rod type post insulator into an anti fouling rod type post insulator based on the ordinary (grounding) isolation switch, and is suitable for heavily polluted or high-altitude areas.
1. Isolation switch structure
The single pole isolation switch is fixed on the same chassis by two rod type post insulators, and is a double column horizontal rotary structure. The external structure is shown in Figure 1.

Each pole isolation switch consists of a base, an insulating pillar, and a conductive part.
Each pole isolation switch has two insulation pillars fixed on the bearings at both ends of the base (Figure 2), connected by connecting rods. Each insulation pillar can rotate horizontally at a 90 ° angle, and is equipped with a conductive terminal block (Figure 3) and left and right contacts (Figure 4). The left and right contacts make contact between two insulated pillars through a conductive tube.
The conductive terminal block is divided into two types based on its structure: hard connection type (Figure 3a) and connection type (Figure 3b), which are determined according to the user's ordering requirements.
The material of the conductive circuit components in the main circuit is copper, and when the current level is 630A, the surface of the conductive components is tin plated; When the current level is above 1600A, the surface of conductive components is silver plated.
The middle contact is a "handshake" structure, which adopts patented technology for pressing the contact finger blade gasket. It is a high-pressure, self-cleaning type, and the contact pressure of the contact finger remains constant for a long time. The contact finger spring has no current passing through, and it operates safely and reliably for a long time.
The structural types, bases, post insulators, and other components of products with different current specifications are the same, except for slight differences in the main electrical circuit

The base part is shown in Figure 2

1. Mechanical interlocking between single grounding secondary operation isolation switch and grounding switch blade
The mechanical interlocking between the single grounding secondary operation isolation switch and the grounding switch blade is achieved through the interlocking panel on the CS8-6D manual mechanism.
2. Structure of manual mechanism
This series of isolating switches is equipped with two manual mechanisms: CS11 (ungrounded and single grounded one-time operation transmission type) and CS8-6D (single grounded secondary operation transmission type).
CS11 (see Figure 6) and CS8-6D manual mechanisms (see Figure 7) have a horizontal rotation handle with a rotation angle of 90 °.
4. Structure of CX-6 electric mechanism
The structure of the CX-6 electric mechanism can be found in its user and maintenance manual

5�� Principle of Action
The opening and closing actions of this series of isolating switches are basically the same. When linking, the single pole isolation switch needs to be connected separately according to installation diagram 8 or diagram 9.
1. Operating principle of isolation switch
(1) Without grounding switch type
The operating mechanism of the isolation switch is connected to the active stage of the isolation switch through a connecting tube. The main shaft of the mechanism rotates 90 degrees, which drives the insulation support of the active stage to rotate 90 degrees. At the same time, the connecting rod drives the insulation support on the other side to rotate in the opposite direction, achieving the opening and closing action. With the help of the connecting rod, each single pole switch can be connected into a bipolar or three pole linkage isolation switch. It is usually manufactured as a single pole and used as a single pole.
(2) One time operation type with grounding switch blade
The structure of the grounded knife switch is based on the above switch structure, with an additional operation of the grounding transmission mechanism It ensures that when the main switch starts to open, the grounding switch starts to rotate accordingly; When the main switch is turned to the disconnection terminal position, the grounding switch also reaches the grounding terminal position at the same time The opening and closing actions of the main switch and the grounding switch are completed in one go
(3) Secondary operation type with grounding switch blade
This structure uses two handles to operate the main blade and the grounding switch blade respectively A interlocking device is installed between the two operating handles to prevent accidental operation and ensure that the operation is carried out according to the prescribed procedure (main opening ground closing ground opening main closing).
2. Working principle of grounding switch
The handle of the operating mechanism rotates horizontally by 90 degrees, and the grounding switch is driven to rotate through the connecting rod to achieve the opening and closing actions of the grounding switch.
3. The auxiliary switch in the operating mechanism is connected to the main shaft of the mechanism, and when the opening and closing actions are performed, the corresponding contacts are cut off or closed, and corresponding opening and closing signals are issued.

6�� Installation and adjustment
1. The installation and adjustment of isolation switches should meet the following requirements:
(1) When equipped with a manual mechanism, operators with general physical strength should be able to independently perform opening and closing operations with flexible movements.
(2) The closing synchronicity value of the bipolar or three pole linkage of the isolation switch is not greater than 6mm;.
(3) The resistance of each phase circuit of the isolation switch should meet the requirements in Table 3

2. Installation and adjustment of isolation switch
(1) Fix each pole isolation switch base on a horizontal foundation according to installation diagram 8 or 9,
(2) Place the operating mechanism under the rotating spindle on the active side of the isolation switch. When the main body of the isolation switch and the operating spindle of the mechanism isolation switch are in the closed position, use a toothed clamp to connect and tighten the water and gas pipe. When the main and driven insulation pillars are not synchronized, adjust the positive and negative teeth screws between the poles to achieve opening and closing.
(3) The installation and adjustment of the bipolar or interlocking closing synchronization of the isolation switch, under the condition that the two terminals bear normal busbar tension, adjust the length of the positive and negative tooth connecting rods between the phases to meet the above requirements.
(4) When the isolation switch is in the closed position, all contact points on the contacts should be in contact. The tightening degree of the M8 screw on the contacts should be the best state when the spring washer is just flattened and the contact fingers can swing.
3. Installation and adjustment of grounding switch with secondary operation type
(1) When both the grounding switch and the main shaft of the mechanism are in the closed position, use a toothed clamp to connect and tighten the water and gas pipe.
(2) When the grounding switch is in the closed position, the contact position of the contact can be adjusted by placing the grounding contact on the conductive tube. When the closed position is correct, tighten the fastening nut.
7�� Acceptance and storage
1. After the product arrives at the destination, the user should place it in a dry and ventilated place, not invert it, and conduct acceptance as soon as possible according to the following items:
(1) Firstly, check the outer surface of the packaging box for any damage or abnormalities. After the external inspection is completed, open the packaging box and take out the attached documents.
(2) Check whether the documents attached to the product are complete (including packing list, product certificate, installation and use instructions, etc.)
(3) Remove the product and accessories (be careful not to damage the insulation pillar porcelain bottle), and verify.
(4) Check the appearance of the product for any damage or abnormal phenomena.
2. After receiving the product experience, regardless of whether it is installed and used immediately, the following items should be stored and kept:
(1) The friction rotating parts of the isolation switch must be wiped clean and coated with acid free Vaseline for protection.
(2) When products are stored in the warehouse for a long time, they should be inspected regularly (no more than six months each time). If rust is found, the rust layer should be removed and rust inhibitor should be applied.
8�� Instructions for use
1. Before putting into operation, a comprehensive inspection should be conducted to confirm that there are no errors before putting it into operation.
(1) Whether the dimensions of each part of the isolation switch meet the requirements.
(2) The bolts of each connecting part should be securely fastened, especially the connection with the busbar.
(3) All contact points on the contact should be in full contact
(4) After being put into operation, the following matters should be noted:
(5) In general, isolation switches must be opened and closed only after the line load is cut off.
(6) The isolation switch with a secondary operation type grounding switch must be fully opened before the grounding switch can be closed; On the contrary, the closing operation of the isolation switch can only be carried out after the grounding switch is completely opened.
2. Isolation switches must be regularly maintained and inspected, and the following precautions should be taken during maintenance:
(1) Check if the isolation switch porcelain bottle is damaged and if the adhesive is loose.
(2) Whether the contact points on the contacts are in good contact when the isolation switch is in the closed position; Check if the spring on the contact is deformed, if the tension has changed, and measure the circuit resistance.
(3) Whether the auxiliary switches and other components in the organization are well insulated.
(4) Is the grounding condition good.
(5) Whether the rotating parts are flexible during operation and there should be no jamming phenomenon.

[Outdoor isolation switch]GW4-35GW(D)/1600A-4000A High current isolation switch

2026-6-19 14:24:26

GW4-40.5D (W) type outdoor high current high voltage isolation switch is an outdoor high voltage electrical equipment with a frequency of 50HZ, rated currents of 1600A, 2000A, 2500A, 4000A, used for switching high voltage lines under voltage and no-load conditions, as well as for electrically isolating high voltage busbars, circuit breakers and other electrical equipment under maintenance from live high voltage lines. It can also be used to separate and combine very small capacitor currents and inductor currents.

GW4-35GW (D)/1600A-4000A high current isolation switch operating environmental conditions
1. Altitude not exceeding 1000m;
2. Environmental temperature: upper limit+40 ��, lower limit -40 ��;
3. Wind speed not exceeding 40.5m/s;
4. The seismic intensity shall not exceed 8 degrees;
5. Insulator pollution level: Ordinary level is level 0; Anti fouling type is Grade II;
6. The installation site should be free of flammable substances, explosion hazards, chemical corrosion, and severe vibrations.

Technical data
The main technical parameters of GW4-35GW (D)/1600A-4000A high current isolation switch are shown in Table 1

Each pole is composed of three independent monopoles, each consisting of a base, insulating pillars, and conductive parts.
Each pole has two insulation pillars fixed on the bushings at both ends of the base, connected by connecting rods. Each insulation pillar can rotate horizontally at a 90 ° angle, and is equipped with a conductive terminal block and left and right contacts (Figure 4b). The left and right contacts are in contact between the two insulation pillars through a conductive tube.
1. Structure of grounding switch
The static contact of the grounding switch is fixed on the conductive pipe of the isolation switch, and the moving contact is installed at the end of the grounding switch steel pipe on the base.
2. Mechanical interlocking of isolation switch and grounding switch
The mechanical interlocking between the isolating switch and the grounding switch is achieved through the interlocking panel on the CS8-6D manual mechanism.
3. Structure of manual mechanism
Manual mechanisms are divided into two types: CS11 ungrounded mechanism (Figure 5) and CS8-6D single grounded mechanism (Figure 6). The operating handle is horizontally rotated, with a rotation angle of 90 °; CS14G mechanism installation dimensions and

The CS11 mechanism is the same, only with a rotation angle of 180 °, used for the main knife manual mechanism of the double grounding isolation switch.

[Outdoor isolation switch]GW5,GW4-72.5GW(D) series outdoor high-voltage isolation switch

2026-6-19 14:24:18

GW4-72.5GW (D) type outdoor AC high voltage isolation relationship double column three-phase AC 50Hz outdoor high voltage switchgear is used in power systems with voltages ranging from 10 to 220KV, for the purpose of closing circuits with voltage and no load, and for the electrical isolation of high-voltage busbars, circuit breakers and other electrical equipment under maintenance from live high-voltage lines. The anti fouling isolation switch can meet the requirements of users in heavily polluted areas and effectively solve the problem of pollution flashover that occurs during the operation of the isolation switch. The combination of GW4 series and CJ2 series electric operating mechanisms is particularly suitable for the needs of long-distance separation and connection in the fields of power systems and electrified railways.

The GW5, GW4-72.5GW (D) series outdoor high-voltage isolating switches have the following varieties:
1) Divided by the presence or absence of a grounding switch: ungrounded, single grounded (left and right grounded), and double grounded;
2) Grounding switches are classified into types I, II, and III based on their ability to withstand short-circuit currents;
3) Divided by usage area: ordinary type, anti fouling type, anti fouling type, and high-altitude type.
This series of products meets the requirements of national standards and IEC standards, with good seismic resistance and the ability to meet the requirement of a seismic intensity of 9 degrees.
Structural characteristics:
The GW4 outdoor AC high voltage isolation switch is a three-phase double column, horizontal opening structure, mainly composed of a base, post insulators, and conductive parts. Two post insulators are installed on the bearings at both ends of the base, connected by connecting rods, and can rotate horizontally. The main switch blade is divided into left and right parts, which are respectively fixed on the two post insulators, and the contact part of the contact is between the two posts. When the operating mechanism is activated, it drives one of the connected insulators to rotate 90 degrees, and the other insulating pillar also rotates 90 degrees simultaneously due to the transmission of the connecting rod, so the left and right brake blades open and close in the same direction. The product is divided into two types: ordinary type and stain resistant type, among which the stain resistant type can be used in Class III polluted areas.
2. According to user needs, the grounding knife equipped with the product is assembled on the rotating shaft of the base. The static contact is installed on the main electrical system pole, and there is a mechanical interlock between the grounding switch and the isolation switch, which can ensure the sequential action of the main switch to ground and the ground switch to main switch. (Power distribution mechanism can be used as needed)
3. The isolation switch is made in a single pole form and can form a three pole linkage through inter pole connections. This switch can also be used single pole as needed.
When the isolating switch is equipped with CS17 manual mechanism, one non grounded mechanism is equipped, two single grounded mechanisms are equipped, and three double grounded mechanisms are equipped. At the same time, CS14-G and CJ6 (electric mechanism) are also available for users to choose from.

Main technical parameters of GW5, GW4-72.5GW (D) series outdoor high-voltage isolation switch

Terms of Use
1. The altitude shall not exceed 1000m, and the plateau type shall not exceed 4000m;
2. Environmental temperature: -40 �� to+40 ��;
3. Wind speed not exceeding 35m/s;
4. Earthquake intensity: 8 degrees;
5. Ice thickness: �� 10mm;
6. Anti pollution products are suitable for polluted areas;
7. Not suitable for places with flammable substances, explosion hazards, chemical corrosion, and severe vibrations. Explanation: When the above environmental conditions cannot meet the usage requirements, it shall be resolved through negotiation between the user and the manufacturer.
5�� Ordering Notice
Please specify when placing an order:
(1) Product model and name;
(2) Rated voltage, rated current, dynamic and thermal stability current;
(3) Terminal tension;
(4) Outdoor insulator creepage distance;
(5) Grounding switch types (Type I, Type II, Type III) and grounding methods (single grounding, double grounding);
(6) The model of the operating mechanism, the number of auxiliary switch poles, whether the electric magnetic lock is mounted with a coding lock, the voltage of the electric motor and the control voltage of the motor mechanism;
(7) GW4 type fracture opening distance and long short contacts.

[Outdoor isolation switch]GW4-126GW(D) Outdoor high-voltage isolation switch

2026-6-19 14:24:10

I. Overview
GW4-126GW (D) outdoor AC high voltage isolation relationship double column three-phase AC 50Hz outdoor high voltage switchgear is used in power systems with a voltage of 110KV, for the purpose of closing circuits with and without voltage load, and for the electrical isolation of high-voltage busbars, circuit breakers and other electrical equipment under maintenance from live high-voltage lines. The anti fouling isolation switch can meet the requirements of users in heavily polluted areas and effectively solve the problem of pollution flashover that occurs during the operation of the isolation switch.
The combination of GW4 series and CJ5, CJ6, CJ2, CJ11A series electric operating mechanisms is particularly suitable for the needs of long-distance separation and combination in the fields of power systems and electrified railways.

GW4-126GW (D) outdoor high-voltage isolation switches have the following varieties:
1) Divided by the presence or absence of a grounding switch: ungrounded, single grounded (left and right grounded), and double grounded;
2) Grounding switches are classified into types I, II, and III based on their ability to withstand short-circuit currents;
3) Divided by usage area: ordinary type, anti fouling type, anti fouling type, and high-altitude type.
This series of products meets the requirements of national standards and IEC standards, with good seismic resistance and the ability to meet the requirement of a seismic intensity of 9 degrees.

Note: GW4-126 isolating switches are produced according to the following requirements:
1. Improve the non welding type of hoop connection;
2. Level 3 pollution prevention, creepage distance �� 3150mm;
3. Equipped with alternating hot-dip galvanized horizontal connecting rods, with a pole spacing of 2m;
4. Hot dip galvanizing of components;
5. Conductive copper tube flexible connection type;
6. The middle contact of the conductive part is a self operated contact finger, and there is no current passing through the spring;
7. The rotating part is equipped with a self-lubricating sleeve.

2�� Main technical parameters

(Note: Single grounding is divided into two types: left grounding and right grounding. Generally, right grounding is supplied.)

3�� Usage conditions
1. The altitude shall not exceed 1000m, and the plateau type shall not exceed 4000m;
2. Environmental temperature: -40 �� to+40 ��;
3. Wind speed not exceeding 35m/s;
4. Earthquake intensity: 8 degrees;
5. Ice thickness: �� 10mm;
6. Anti pollution products are suitable for polluted areas;
7. Not suitable for places with flammable substances, explosion hazards, chemical corrosion, and severe vibrations.
Explanation: When the above environmental conditions cannot meet the usage requirements, it shall be resolved through negotiation between the user and the manufacturer.
4�� Structure
The GW4 series isolating switch has reliable performance, simple structure, flexible installation method, easy maintenance, wide applicability, and strong versatility. If equipped with a transmission box, the opening and closing operation is more flexible, lightweight, accurate and reliable; When an electromagnetic lock is attached, it can effectively achieve electrical interlocking between the isolation switch, grounding switch, and circuit breaker to prevent misoperation.
The GW4-126 outdoor isolation switch is a three-phase high-voltage electrical appliance composed of three independent single pole isolation switches, and is also a basic unit derived from other structures. It is referred to as a common isolation switch below.
The GW4-126D outdoor isolation switch is made by adding a grounding knife to the ordinary isolation switch, which is divided into single grounding and double grounding types, hereinafter referred to as the grounding type isolation switch.
The GW4-126 (DW) outdoor isolation switch is made by replacing the ordinary rod type post insulator with an anti fouling rod type post insulator based on the ordinary (grounding) isolation switch, and is suitable for polluted areas.
1. Isolation switch structure
This isolation switch is a double column horizontal rotary structure, as shown in Figure 1 for its external structure.
Each set of isolation switches consists of three independent single poles, each consisting of a base, an insulating pillar, and a conductive part. Each pole isolation switch has two insulation pillars fixed on the bearing seats at both ends of the base (Figure 2), connected by connecting rods. Each insulation pillar can rotate horizontally at a 90 ° angle, and is equipped with a soft connection conductive terminal block (Figure 3) and left and right contacts (Figure 4). The left and right contacts make contact between two insulated pillars through a conductive tube. The isolation switch bearing seat is shown in Figure 2
The conductive terminal block for the soft connection of the isolation switch is shown in Figure 3
The left and right contacts of the isolation switch are shown in Figure 4
The material of the conductive circuit components in the main circuit is copper, and when the current level is 630A, the surface of the conductive components is tin plated; When the current level is above 1250A, the contact surface of the conductive component is silver plated.
The middle contact is a "handshake" structure, which adopts patented technology for pressing the contact finger blade gasket. It is a high-pressure, self-cleaning type, and the contact pressure of the contact finger remains constant for a long time. The contact finger spring has no current passing through, and it operates safely and reliably for a long time.
The structural types, bases, post insulators, and other components of products with different current specifications are the same, except for slight differences in the main electrical circuit
2. Structure of grounding switch
The static contact of the grounding switch is fixed on the conductive tube of the isolation switch, and the moving contact is installed at the end of the aluminum tube of the grounding switch on the base.
3. Mechanical interlocking of isolation switch and grounding switch
The mechanical interlocking between the isolating switch and the grounding switch is achieved through an interlocking disc. When the isolating switch is in the closed position, the fan-shaped interlocking disc of the grounding switch rotating shaft restricts the closing of the grounding switch.
When the grounding switch is in the closed position, the grounding switch related locking plate is inserted into the fan-shaped interlocking plate of the isolating switch, preventing the isolating switch from closing.
4. Structure of the operating mechanism
The isolation switch can be equipped with CS14G manual mechanism (Figure 5) or CJ5, CJ6 electric mechanism and CJ12A-G maintenance free electric mechanism. The grounding switch can be equipped with CS14G manual mechanism, and its operating handle is horizontally rotating with a rotation angle of 180 °.
CJ5, CJ6 electric mechanisms and CJ12A-G maintenance free electric mechanisms can be found in their respective manuals.
CS14G manual mechanism is shown in Figure 5

[Outdoor isolation switch]GW4C-252D(G)252kV Outdoor high-voltage AC isolation switch

2026-6-19 14:24:01

GW4C-252D (G) type outdoor high-voltage transmission equipment with three-phase AC frequency of 50Hz is used to disconnect or connect high-voltage lines under no-load conditions, in order to switch high-voltage lines, change operating modes, and safely isolate high-voltage electrical equipment such as busbars and circuit breakers for maintenance.
This product is a double column horizontal fracture center opening type, which can be equipped with JW10-252 grounding switches on one or both sides. The isolation switch adopts SRCJ1 type motor operating mechanism three pole linkage operation; The grounding switch adopts SRCS1 type manual operation mechanism with three pole linkage operation.

The GW4C-252D (G) 252kV outdoor high-voltage AC isolation switch complies with standards such as GB1985-2004 "High Voltage AC Isolation Switches and Grounding Switches", GB11022-1999, DL/T593-2006 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards", DL/T486-2000 "Technical Conditions for Ordering AC Isolation Switches and Grounding Switches", and meets the relevant regulations on ordering high-voltage isolation switches issued by State Grid Corporation of China for improvement. And through seismic resistance calculation analysis with a seismic intensity of 9 degrees.

project			Unit	Parameters
rated voltage			kV	two hundred and fifty-two
Rated insulation level^{��1��}	a) 1-minute power frequency withstand voltage (effective value)		kV	to the ground	four hundred and sixty
			kV	fracture	five hundred and thirty
	The shortest distance during the closing process of the grounding switch		kV	two hundred and ninety-one
	b) Rated lightning impulse withstand voltage (peak)		kV	to the ground	one thousand and fifty
	b) Rated lightning impulse withstand voltage (peak)		kV	fracture	one thousand and two hundred
rated frequency			Hz	fifty
rated current			A	1600 2000 2500 3150
Rated short-time withstand current			kA	40 50
Rated peak withstand current			kA	100 125
Rated short-circuit duration			s	three
Rated terminal mechanical load		Horizontal and vertical loads	N	one thousand and five hundred
		Horizontal lateral load	N	one thousand
		vertical force	N	1000 1250
Isolation switch busbar conversion current opening and closing capability				300V, 1600A, 100 times
Grounding switch induced current opening and closing capability		1) Electromagnetic induction current (current/voltage)	A/kV	160/15^{��2��}��80/2��
		2) Static induced current (current/voltage)	A/kV	10/15^{��2��}��3/12��
		3) Opening and closing times	time	ten
Isolation switch low current opening and closing capability		capacitive current	A	one
Isolation switch low current opening and closing capability		Inductive current	A	zero point five
mechanical life			time	two thousand
creepage distance			mm	6300 7812
Human operated mechanism		model		SRCS1
Human operated mechanism		Control circuit voltage	V	AC220
Electric motor operating mechanism		model		SRCJ1
		Motor voltage	V	AC380
		Control circuit voltage	V	AC220
		Opening and closing time	s	12±1
		output angle		one hundred and eighty
unipolar weight		not grounded	kg	four hundred and eighteen
		Single grounding	kg	four hundred and thirty-eight
		Double grounding	kg	four hundred and fifty-eight
Note: (1) This product belongs to the high-altitude (G) type, and the insulation test is assessed at an altitude of 2000 meters, with a correction factor of k=1.13; If the insulation level is set at 395 kV, it can be used in areas with an altitude of 2800 meters. (2) The parameters are specified as Class B values in DL/T486-2000, and arc ignition devices must be installed; The values in parentheses are specified for Class B in GB1985-2004.

[Outdoor isolation switch]GW7B-252D(G)252kV Outdoor high-voltage AC isolation switch

2026-6-19 14:23:53

GW7B-252D (G) type outdoor high-voltage transmission equipment with a three-phase AC frequency of 50Hz is used to disconnect or connect high-voltage lines under no-load conditions, in order to switch high-voltage lines, change operating modes, and safely isolate high-voltage electrical equipment such as busbars and circuit breakers for maintenance.
This product is a three column horizontal fracture switch flip type, which can be equipped with JW10-252 grounding switches on one or both sides. The isolation switch adopts SRCJ2 type motor operating mechanism three pole linkage operation; The grounding switch adopts SRCS1 type manual operation mechanism with three pole linkage operation.

The GW7B-252D (G) 252kV outdoor high-voltage AC isolation switch complies with standards such as GB1985-2004 "High Voltage AC Isolation Switches and Grounding Switches", GB11022-1999, DL/T593-2006 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards", DL/T486-2000 "Technical Conditions for Ordering AC Isolation Switches and Grounding Switches", and meets the relevant regulations on ordering high-voltage isolation switches issued by State Grid Corporation of China for improvement. And through seismic resistance calculation analysis with a seismic intensity of 9 degrees.

The GW7B-252D (G) 252kV outdoor high-voltage AC isolation switch adopts a flip type, with a two-step action of the conductive tube. When closing, the conductive tube first rotates about 70 ° on the horizontal plane. When the two end contacts enter the static contact seat and are blocked, the flipping mechanism drives the conductive tube to rotate about 45 °. The moving contact is in reliable contact with the contact finger, with low operating force and no impact force on the fixed insulators at both ends. The main contact has self cleaning ability.
The U-shaped contact finger in the static contact is fixed at one end on the contact seat, forming a fixed connection and ensuring reliable conductivity; The other end generates contact pressure on the moving contact through an external pressure spring and the elastic force of the contact finger itself, and automatically increases the clamping force when the short-circuit current passes through. The touch finger spring is made of stainless steel material and has an insulating spacer, which prevents rusting and prevents flow diversion.
The static contact is equipped with a hook plate, which locks the moving contact after closing. Even under strong winds, vibrations, and electric forces, the contact will not detach. The arcing contacts on the dynamic and static contacts enable the isolation switch to have good performance in switching busbar current and switching capacitors and inductors with low current.
The grounding switch is a one-step action type, with a simple structure and easy maintenance. It effectively uses electric force to clamp the contacts and keep the grounding knife in the closed position. It has strong ability to withstand short-circuit currents and high parameters for opening and closing induced currents.
The conductive tube is made of high-strength, high conductivity, and corrosion-resistant aluminum material. The two end moving contacts are assembled and easy to replace.
The conductive tube flipping mechanism is enclosed, rainproof, dust-proof, and corrosion-resistant, and the flipping action is accurate and reliable.
The base is made of square steel pipes and bent plates welded together, with high strength and good rigidity. The surface is hot-dip galvanized and has strong anti-corrosion ability. All black metal components (including M10 and above fasteners) are treated with hot-dip galvanizing.
The rotating parts of the isolation switch are designed according to maintenance free requirements. The rotating seat is a fully sealed structure, which prevents water vapor, dust, and harmful gases from entering. The lubricating grease inside the bearing does not lose or solidify.
Stainless steel pin shafts, self-lubricating bearings, and stainless steel joint bearings are used at each rotating friction point.
The transmission connecting rod adopts assembly type, and on-site installation does not require cutting and welding. The connecting rod adopts hot-dip galvanized seamless steel pipe.
The mechanism interlocking between the main blade and the ground blade adopts a cam sliding plate structure, with direct action and reliable interlocking.
The operating mechanism box is made of stainless steel plate riveting, which does not require welding and has a good appearance. The electric mechanism adopts a hollow gearbox and nylon gears, with smooth and noise free operation. It uses foreign brand electrical components, which work reliably and have complete locking functions.
The human resources organization utilizes the intermediate relay installed in the box to achieve electromagnetic lock function, which is reliable in interlocking and overcomes the disadvantages of rust, corrosion, and malfunction of outdoor electromagnetic locks commonly used in China.

project			Unit	Parameters
rated voltage			kV	two hundred and fifty-two
Rated insulation level^{��1��}	a) 1-minute power frequency withstand voltage (effective value)		kV	to the ground	four hundred and sixty
			kV	fracture	five hundred and thirty
	The shortest distance during the closing process of the grounding switch		kV	two hundred and ninety-one
	b) Rated lightning impulse withstand voltage (peak)		kV	to the ground	one thousand and fifty
	b) Rated lightning impulse withstand voltage (peak)		kV	fracture	one thousand and two hundred
rated frequency			Hz	fifty
rated current			A	2000 2500 3150 4000
Rated short-time withstand current			kA	fifty
Rated peak withstand current			kA	one hundred and twenty-five
Rated short-circuit duration			s	three
Rated terminal mechanical load		Horizontal and vertical loads	N	one thousand and five hundred
		Horizontal lateral load	N	one thousand
		vertical force	N	one thousand two hundred and fifty
Isolation switch busbar conversion current opening and closing capability				300V, 1600A, 100 times
Grounding switch induced current opening and closing capability		1) Electromagnetic induction current (current/voltage)	A/kV	160/15^{��2��}��80/2��
		2) Static induced current (current/voltage)	A/kV	10/15^{��2��}��3/12��
		3) Opening and closing times	time	ten
Isolation switch low current opening and closing capability		capacitive current	A	one
Isolation switch low current opening and closing capability		Inductive current	A	zero point five
mechanical life			time	two thousand
creepage distance			mm	6300 7812
Human operated mechanism		model		SRCS1
Human operated mechanism		Control circuit voltage	V	AC220
Electric motor operating mechanism		model		SRCJ2
		Motor voltage	V	AC380
		Control circuit voltage	V	AC220
		Opening and closing time	s	14±1
		output angle		180°
unipolar weight		not grounded	kg	six hundred and thirty
		Single grounding	kg	six hundred and fifty
		Double grounding	kg	six hundred and seventy
Note: (1) This product belongs to the high-altitude (G) type, and the insulation test is assessed at an altitude of 2000 meters, with a correction factor of k=1.13; If the insulation level is set at 395 kV, it can be used in areas with an altitude of 2800 meters. (2) The parameters are specified as Class B values in DL/T486-2000, and arc ignition devices must be installed; The values in parentheses are specified for Class B in GB1985-2004.

[Outdoor isolation switch]GW22B-252D(G)252kV Outdoor high-voltage AC isolation switch

2026-6-19 14:23:43

GW22B-252D (G) type outdoor high-voltage transmission equipment with a three-phase AC frequency of 50Hz is used to disconnect or connect high-voltage lines under no-load conditions, in order to switch high-voltage lines, change operating modes, and safely isolate high-voltage electrical equipment such as busbars and circuit breakers for maintenance.
This product is a single column vertical fracture deflection type and can be equipped with JW10-252 grounding switch. The isolation switch adopts SRCJ3 type motor operating mechanism three pole linkage operation; The grounding switch adopts SRCS1 type manual operation mechanism with three pole linkage operation.

The GW22B-252D (G) 252kV outdoor high-voltage AC isolation switch complies with standards such as GB1985-2004 "High Voltage AC Isolation Switches and Grounding Switches", GB11022-1999, DL/T593-2006 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards", DL/T486-2000 "Technical Conditions for Ordering AC Isolation Switches and Grounding Switches", and meets the relevant regulations on ordering high-voltage isolation switches issued by State Grid Corporation of China for improvement. And through seismic resistance calculation analysis with a seismic intensity of 9 degrees.

project			Unit	Parameters
rated voltage			kV	two hundred and fifty-two
Rated insulation level^{��1��}	a) 1-minute power frequency withstand voltage (effective value)		kV	to the ground	four hundred and sixty
			kV	fracture	five hundred and thirty
	b) Rated lightning impulse withstand voltage (peak)		kV	to the ground	one thousand and fifty
	b) Rated lightning impulse withstand voltage (peak)		kV	fracture	one thousand and two hundred
rated frequency			Hz	fifty
rated current			A	1600 2000 2500 3150
Rated short-time withstand current			kA	40 50
Rated peak withstand current			kA	100 125
Rated short-circuit duration			s	three
Rated terminal mechanical load		Horizontal and vertical loads	N	two thousand
		Horizontal lateral load	N	one thousand and five hundred
		vertical force	N	one thousand two hundred and fifty
Isolation switch busbar conversion current opening and closing capability				300V, 1600A, 100 times
Grounding switch induced current opening and closing capability		1) Electromagnetic induction current (current/voltage)	A/kV	160/15^{��2��}��80/2��
		2) Static induced current (current/voltage)	A/kV	10/15^{��2��}��3/12��
		3) Opening and closing times	time	ten
Isolation switch low current opening and closing capability		capacitive current	A	one
Isolation switch low current opening and closing capability		Inductive current	A	zero point five
Rated contact area		Longitudinal displacement of supporting wire	�L	150/200 (hard wire/soft wire)
		Horizontal total offset	�L	150/500 (hard wire/soft wire)
		vertical offset	�L	150/250 (hard wire/soft wire)
mechanical life			time	two thousand
creepage distance			mm	6300 7812
Human operated mechanism		model		SRCS1
Human operated mechanism		Control circuit voltage	V	AC220
Electric motor operating mechanism		model		SRCJ3
		Motor voltage	V	AC380
		Control circuit voltage	V	AC220
		Opening and closing time	s	10±1
		output angle		135°
unipolar weight		not grounded	kg	six hundred
unipolar weight		grounding	kg	six hundred and thirty
Note: (1) This product belongs to the high-altitude (G) type, and the insulation test is assessed at an altitude of 2000 meters, with a correction factor of k=1.13; If the insulation level is set at 395 kV, it can be used in areas with an altitude of 2800 meters. (2) The parameters are specified as Class B values in DL/T486-2000, and arc ignition devices must be installed; The values in parentheses are specified for Class B in GB1985-2004.

[Outdoor isolation switch]JW10-252(G)252kV Outdoor high-voltage AC isolation switch

2026-6-19 14:23:35

JW10-252 (G) type high-voltage AC grounding switch is an independently installed high-voltage outdoor grounding device. Suitable for 220kV power lines with AC 50Hz, it is used to release static charges from the inspected lines and equipment, and to implement electrical safety grounding for high-voltage equipment such as busbars and circuit breakers during maintenance, so that there are obvious grounding opening and closing signs in the line, ensuring the personal safety of maintenance personnel during power outages. Usually, in places where a single column vertical disconnect switch is used, it is used to ground the upper busbar.

The JW10-252 (G) 252kV outdoor high-voltage AC isolation switch is a one-step action type, using SRCS1 manual operation mechanism or SRCJ3 electric motor operation mechanism for three pole linkage operation.

The JW10-252 (G) 252kV outdoor high-voltage AC isolation switch complies with standards such as GB1985-2004 "High Voltage AC Isolation Switches and Grounding Switches", GB11022-1999, DL/T593-2006 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards", DL/T486-2000 "Technical Conditions for Ordering AC Isolation Switches and Grounding Switches", and meets the relevant regulations on ordering high-voltage isolation switches issued by State Grid Corporation of China for improvement.

Project				unit	Parameters
rated voltage				kV	two hundred and fifty-two
Rated insulation level (1)			a) 1-minute power frequency withstand voltage (effective value)	kV	four hundred and sixty
Rated insulation level (1)			b) Rated lightning impulse withstand voltage (peak)	kV	one thousand and fifty
rated frequency				Hz	fifty
Rated short-time withstand current				kA	fifty
Rated peak withstand current				kA	one hundred and twenty-five
Rated short-circuit duration				s	three
Rated terminal mechanical load		Horizontal and vertical loads		N	one thousand and five hundred
		Horizontal lateral load		N	one thousand
		vertical force		N	one thousand two hundred and fifty
Grounding switch opening and closing induced current		a) Inductive current (current/voltage)		A/kV	160/15��2��80/2��
		b) Capacitive current (current/voltage)		A/kV	10/15��2��3/12��
		c) Operate multiple times		time	ten
mechanical life				time	two thousand
creepage distance				mm	6300 7812
Human operated mechanism	model				SRCS1
Human operated mechanism	Control circuit voltage			V	AC220
Electric motor operating mechanism	model				SRCJ3
	Motor voltage			V	AC380
	Control circuit voltage			V	AC220��AC380
	Opening and closing time			s	10±1
	output angle				135°
unipolar weight				kg	two hundred and fifty-five
Note: (1) This product belongs to the high-altitude (G) type, and the insulation test is assessed at an altitude of 2000 meters, with a correction factor of k=1.13; If the insulation level is set at 395 kV, it can be used in areas with an altitude of 2800 meters. (2) The parameters are specified as Class B values in DL/T486-2000, and arc ignition devices must be installed; The values in parentheses are specified for Class B in GB1985-2004

[Outdoor isolation switch]GW1-12/400A-1250A Three phase linkage outdoor high-voltage isolation switch

2026-6-19 14:23:27

GW1-12/400A-1250A three-phase linkage outdoor high-voltage isolation switch

[Outdoor isolation switch]GW6A-220D(W) type high voltage isolation switch

2026-6-19 14:23:18

GW6A-220 D (W) outdoor high-voltage isolation switch is a single column three-phase AC 50Hz outdoor high-voltage transmission equipment, used to disconnect or connect high-voltage lines under no-current conditions, and to achieve safe electrical isolation during maintenance of busbars, circuit breakers and other equipment.
This product has a symmetrical scissor structure, which forms a vertical insulation fracture after opening. The opening and closing states are clear and intuitive, which is very conducive to inspection and suitable for soft and hard busbars.

GW6A-220D (W) high-voltage isolation switch is usually used as a busbar isolation switch in power distribution equipment, with the advantage of small footprint. Its land saving effect is most significant in distribution equipment with double busbar and bypass connection.
GW6A-220 D (W) outdoor high-voltage isolation switch can be equipped with a Type II grounding switch for grounding the lower end of the fracture (lower lead). The ability of Type II grounding switch to withstand short-circuit current is the same as that of isolation switch. This isolation switch and the attached grounding switch are each equipped with independent operating mechanisms, and mechanical interlocking devices are installed on the isolation switch to ensure the correct operation sequence between the isolation switch and the grounding switch.

There are two types of operating mechanisms used with this product:
CJ2-XG or other models of electric mechanical operating mechanisms, used for operating isolation switches.
CS9-G hand operated mechanism, used for operating grounding switches.
This isolation switch and grounding switch are both three-phase mechanical linkage.
The product features: GW6A-220 D (W) type isolation switch is an improved product based on GW6-220 D (W) type. The improved isolation switch has added oil injection devices in the rotating and transmission parts, which will not cause rusting during long-term operation. Ensuring the reliability of product operation and reducing daily maintenance and upkeep.

Technical parameters of GW6A-220D (W) high-voltage isolation switch:

Product Model				GW6A-220 D��W��
Rated voltage kV				two hundred and twenty
Maximum voltage kV				two hundred and fifty-two
Rated current A				two thousand	two thousand and five hundred			three thousand one hundred and fifty
Dynamic stability current (peak value) kA				one hundred	one hundred and twenty-five			one hundred and twenty-five
3-second thermal stability current (effective value) kA				forty	fifty			fifty
power frequency withstand voltage	1-minute withstand voltage		Ground kV	460��395��360��
			Fracture kV	530��460��415��
Lightning impulse withstand voltage (full wave) 1.2��1.5/40��50��s			Ground kV	1050��950��850��
			Fracture kV	1200��1050��950��
Rated static tension of terminal N				two thousand three thousand				three thousand
Creepage distance mm				3740��5500��6300
Cut capacitor current A				zero point six
Isolation switch opening and closing time S				six��one				eight��one
grounding switch	Dynamic stability current (peak value) kA			one hundred		one hundred and twenty-five		one hundred and twenty-five
	Thermal stability current (effective value) kA-S			40-3		50-3		50-3
unipolar weight		Non grounded kg		five hundred and eighty			seven hundred
		Grounding kg		six hundred and thirty			seven hundred and seventy
Remarks				According to the national standard pressure resistance standard in parentheses, it can be used for altitudes of 2000m and 2900m

Product Structure Description:
The GW6A-220 D (W) type isolating switch consists of a base, supporting insulator, operating insulator, switch head (composed of moving contact, conductive switch blade, and transmission mechanism), and static contact (composed of static contact rod, shielding ring, and conductive connector). The isolating switch with a grounding switch is fixed on the base of the isolating switch, and the interlocking device between the grounding switch and the isolating switch is also located on the base of the grounding switch. The improved GW6A-220 D (W) type isolation switch has its moving contact and conductive switch located outside the transmission mechanism box.

Ordering Notice:
1. Model, specification, and quantity of isolation switches:
a�� Rated current b, whether there is a grounding switch c, creepage distance d, indicating opening distance of 2.2m or 2.55m e, terminal tension and long and short contacts
2. Model, specification, and quantity of the accompanying operating mechanism:
a. Control voltage and number of auxiliary switch contacts for CJ2-XG motor operating mechanism
b. Does the CS9-G manual mechanism require an electromagnetic lock (DSW1 type) and specify the control voltage. To install a coded lock, please indicate.
3. Do you need YY-III type contact pressure measuring instrument.

[Outdoor isolation switch]GW32-12/40.5/72.5 High voltage outdoor isolation switch

2026-6-19 14:23:09

The GW32 series AC high-voltage isolation switch is an outdoor high-voltage transmission equipment with three-phase AC and a frequency of 50Hz. It is used to disconnect or connect high-voltage lines under no-load conditions, change the operation mode of distribution equipment and busbars, and achieve safe electrical isolation during maintenance of busbars, circuit breakers and other electrical equipment.

The GW32-12/40.5/72.5 high-voltage outdoor isolation switch is a double column horizontal fracture vertical opening structure, and its fracture is clearly visible after opening, which is conducive to inspection. The product has the advantages of small footprint, small inter phase distance, simple structure, easy operation, and simple appearance. The conductive switch adopts a two-step action, that is, after the moving contact comes into contact with the static contact seat, the moving contact flips 40 °, so that the contact pressure between the moving and static contacts is stable and reliable, achieving close contact with the static contact finger. The assembly of the static contact seat adopts an internal hidden external pressure structure, and the contact finger spring will not produce any diversion. The rotating part bearings adopt double sealed and self-lubricating bearings to maintain good lubrication and flexible rotation, and generally require minimal maintenance. This product can be supplied from above ground level.
This product complies with GB1985-2004 "AC High Voltage Isolating Switches and Grounding Switches", and is equivalent to IEC60129 (1984) "AC High Voltage Isolating Switches and Grounding Switches" and GB/T11022-1999 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards".
This product is equipped with rod-shaped pillar composite insulators (which can also be equipped with porcelain insulators, classified into three level and four level anti fouling types according to the pollution conditions of use). According to the grounding method, it can be divided into four forms: "ungrounded", "front grounded (with grounding switch on the auxiliary contact side)", "rear grounded (with grounding switch on the main contact side)", and "double grounded".

Product classification
1�� GW32��12�� The 40.5 and 72.5 outdoor isolation switches are composed of three independent single-phase isolation switches, an integral channel steel crossbeam, and two columns. They are the basic unit of the derived grounding switch.
2. Install one grounding switch for each phase of the front grounding switch (with a grounding switch on the side of the auxiliary contact finger seat).
3. Install one grounding switch for each phase of the rear grounding switch (with a grounding switch on the main contact finger seat side).
4. Two grounding switches are installed for each phase of the double grounding switch.
5. The installation method is horizontal installation.
6. According to the operation mode, it can be divided into three pole linkage or single pole operation.
7. According to the type of insulator material used, ceramic insulators and composite insulators are classified.
8. According to the working environment, it is divided into Level III anti fouling and Level IV anti fouling.
9. According to the operating mechanism, the main knife (isolation switch) has two types of operating mechanisms: electric and manual, while the ground knife (grounding switch) only has a manual operating mechanism. When the main knife is manually operated, use the CS17-G hand operated mechanism or the CS9-G hand operated mechanism, and use the CS17-G hand operated mechanism for the ground knife.

Technical parameters of the product
1. The main technical parameters of the isolation switch are shown in Table 1
Table 1

part class	model	Forehead fixed electricity press kV	rated current A	disconnecting switch		grounding switch		grounding kind	Associated institutions
				Rated peak withstand current kA (peak)	Rated short-time withstand current kA/4s (effective value)	Rated peak withstand current kA (peak)	Rated short-time withstand current kA/4s (effective value)		isolation switch		grounding switch
prevent filth type	GW32��	twelve forty point five seventy-two point five	six hundred and thirty	fifty	twenty	fifty	twenty	not grounded Left single grounding Right single grounding Double grounding	hand crank Institution or Handheld Institution	electric actuator	CS17-G
			one thousand two hundred and fifty	eighty	thirty-one point five	eighty	thirty-one point five

			one thousand and six hundred	one hundred	forty	one hundred	forty
			two thousand
			two thousand and five hundred

Note: The maximum rated current for 12kV is 1250A
3�� Ordering Information
When placing an order, please specify the product model, rated voltage, rated current, grounding type (front grounding, rear grounding, double grounding, ungrounded), anti fouling level, and special requirements for manual and electric mechanisms.

[Outdoor isolation switch]GW7A series outdoor high-voltage isolation switch

2026-6-19 14:23:01

The GW7A series isolation switch is a three-phase AC 50Hz outdoor high-voltage electrical appliance with a three column horizontal double break structure. Used for switching high-voltage lines under no-current conditions and electrically isolating high-voltage busbars, circuit breakers, and other electrical appliances under maintenance from voltage carrying lines.

The GW7A series outdoor high-voltage isolation switch is operated by a CJ6-XG motor mechanism, the attached Type I grounding switch is operated by a CS17-G manual operating mechanism, and the Type II grounding switch is operated by a CS9-G manual operating mechanism. The grounding switch (Type II) of GW7A-500D is operated by CJ6-XG electric motor mechanism or CS9-G manual mechanism. CS17-G manual mechanism operation. 145 and 220KV are three-phase linkage; 330 and 500KV are single-phase operations, and when equipped with an electric mechanism, three-phase electrical linkage can be achieved through a control box.

The GW7A series outdoor high-voltage isolation switch can be equipped with grounding switches on one or both sides. The switch body is equipped with a mechanical interlocking device, which can ensure the correctness of the operation sequence of the isolation switch and the grounding switch. GW7A-220D (W) passed the three-phase dynamic thermal stability test at KEMA in the Netherlands.

serial number	Project parameters
one	Rated voltage kV					two hundred and twenty
two	Maximum working voltage kV					two hundred and fifty-two
three	Rated current A					six hundred and thirty	one thousand one thousand two hundred and fifty	one thousand and six hundred two thousand two thousand and five hundred	three thousand one hundred and fifty
four	Rated thermal stability current (effective value) kA					twenty	thirty-one point five	40/40/50	fifty
five	Rated thermal stability time S					three	three	three	three
six	Rated dynamic stability current (peak value) kA					fifty	eighty	100/100/125	one hundred and twenty-five
seven	1-minute power frequency voltage (effective value) kV			to the ground		395(460)		four hundred and sixty
				fracture		460(530)		five hundred and thirty
eight	Lightning impulse withstand voltage (peak) kV			to the ground		950(1050)		one thousand and fifty
				fracture		1050(1200)		one thousand and two hundred
nine	Rated terminal mechanical load N					1000 or 1500		three thousand
ten	Disconnect capacitor current A					zero point six		zero point five
eleven	Electric opening and closing time S					6±1		6.4±1
twelve	Creepage distance mm				ordinary	three thousand seven hundred and forty		three thousand seven hundred and forty
					anti-fouling	five thousand and five hundred		five thousand three hundred and sixty
thirteen	grounding switch	Dynamic stability current (peak value) KA			Type I	twenty-three	twenty-three	twenty-three
					Type II	fifty	eighty	100/125	one hundred and twenty-five
		Thermal stability current (effective value) KA			Type I	10(1S)	10(1S)	10(1S)
					Type II	20(3S)	31.5(3S)	40/50(3S)	50(3S)
fourteen	Supporting organization	disconnecting switch				CJ_two-G or CS17-G	CJ_two-G	CJ_two-XG CJ_two-GIV	CJ_two-G��
		grounding switch			Type I	CS17-G or CS17-II
					Type II	CS_nine��G			CS_nine��G
fifteen	Weight kg		not grounded			five hundred and sixty	five hundred and eighty-five	six hundred and twenty	one thousand and five hundred
			Single grounding			six hundred and fifty	six hundred and seventy-five	seven hundred and ten	one thousand five hundred and seventy
			Double grounding			seven hundred	seven hundred and twenty-five	seven hundred and sixty	one thousand six hundred and forty

[Outdoor isolation switch]FZW33-12/15 Outdoor vacuum load isolation switch (electric, manual)

2026-6-19 14:22:52

FZW33-12/15 Outdoor Vacuum Load Isolation Switch (Electric, Manual)

Rated voltage (kV): 12; fifteen
Rated current (A): 630
Rated frequency (Hz): 50 1min
Power frequency withstand voltage: Vacuum fracture (kV): 42 phase to phase, ground (kV): 42
Isolation fracture (kV): 50 lightning impulse withstand voltage: phase to phase, ground (kV): 75
Isolation fracture (kV): 85
Rated short-circuit closing current (kA): 50
Rated short-time withstand current (kA): 20 (4S)
Rated peak withstand current (kA): 50
Mechanical lifespan (times): 10000

FZW33-12/15 Outdoor Vacuum Load Isolation Switch (Electric, Manual)

[Outdoor isolation switch]HGW1-12 outdoor high-voltage isolation switch

2026-6-19 14:22:44

The HGW1-12 outdoor high-voltage isolation switch is suitable for use in power systems with an AC frequency of 50Hz and a rated working voltage of 10KV. It is used as an outdoor switchgear for breaking and closing power supply under voltage and no-load conditions

[Outdoor isolation switch]GW23-126/252(D)(W) type high voltage isolation switch

2026-6-19 14:22:36

Introduction to the Structure of GW23-126/252 (D) (W) High Voltage Isolation Switch

The complete set of isolation switch consists of GW23-126/252 (D) (W) type isolation switch body, CJ7 electric mechanism, manual operation mechanism, transmission accessories, etc.
The single pole isolation switch is divided into two parts: the moving side and the stationary side. The moving side is composed of three parts: the main switch blade, the porcelain bottle, and the base.
The base part consists of a steel frame, an operating lever, a connecting rod, and a grounding knife base and knife rod. For the operating pole, there is also a mechanism interlocking component between the main switch and the grounding switch.
Each pole has two columns of porcelain bottles on the moving side, one column is used to support the main blade, and the other column is used to transmit operating torque, also known as "operating porcelain bottles".
The main blade first converts the horizontal rotation of the operating porcelain bottle into vertical rotation of the double crank arm through a pair of bevel gears, and then drives the seat to rotate through the double connecting rod, achieving the two major motion processes of folding and clamping. After opening, a visible horizontal fracture is formed.
The static side part mainly consists of three components: static side base, static side porcelain bottle, and static contact rod. Non grounded steel frames are of small size, and corresponding accessories are added when there is a grounding switch. The static side insulator is the same as the dynamic side. The static contact rod is a silver plated copper rod with an outer diameter of �� 40, which is fixed to the terminal block.

Main technical parameters
GW23-126 (D) (W) type isolating switch

model	rated voltage kV	rated current A	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
			Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW23��126(D)��W��/1250	one hundred and twenty-six	one thousand two hundred and fifty	31.5/4	31.5/3	eighty	eighty	two hundred and thirty	two hundred and eighty-three	five hundred and fifty	six hundred and twenty-three
GW23��126(D)��W��/1600		one thousand and six hundred	31.5/4	31.5/3	eighty	eighty

GW23-252 (D) (W) type isolating switch

model	rated voltage kV	rated current A	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
model	rated voltage kV	rated current A	Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW23��252(D)��W��/1250	two hundred and fifty-two	one thousand two hundred and fifty	40/3	40/2	one hundred	one hundred	four hundred and sixty	six hundred and six	one thousand and fifty	one thousand two hundred and fifty-six
GW23��252(D)��W��/1600		one thousand and six hundred	40/3	40/2	one hundred	one hundred
GW23��252(D)��W��/2500		two thousand and five hundred	50/3	50/2	one hundred and twenty-five	one hundred and twenty-five
GW23��252(D)��W��/3150		three thousand one hundred and fifty	50/3	50/2	one hundred and twenty-five	one hundred and twenty-five

[Outdoor isolation switch]GW22-126/252(D)(W) type high voltage isolation switch

2026-6-19 14:22:27

Introduction to GW22-126/252 (D) (W) High Voltage Isolation Switch

The complete set of isolation switch consists of GW22-126/252 (D) (W) type isolation switch body, CJ7 electric mechanism, manual operation mechanism, transmission accessories, etc. This product can be placed directly below the busbar, with its static contacts suspended on the overhead busbar. After the product is opened, it forms a vertical insulation fracture. Especially in substations with "double busbar with bypass busbar", the saving of floor space is particularly significant.
The isolation switch is a single column vertical fracture folding type. The base is equipped with post insulators and operating insulators, as well as connecting rods and toggle arms. In addition, it is also equipped with mechanical interlocking components between the main switch blade and the grounding switch blade (only on the operating pole). The base has installation holes that can be directly installed on cement or steel frame foundations.
Clockwise rotation of the insulator can drive the main switch blade to extend and close, while counterclockwise rotation can cause it to close and fold, in the open state, forming a visible vertical fracture.
When the static contact fixed on the busbar deviates from the ideal position due to natural external disturbances such as strong winds, thermal expansion and contraction of the busbar, or ice cover, the switch itself can still easily achieve normal opening and closing during operation. Secondly, during installation and commissioning, even if the switch error is large, it can still ensure good completion of normal opening and closing.

Main technical parameters
GW22-126 (D) (W) type isolating switch

model	rated voltage kV	rated current A	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
			Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW22��126(D)��W��/1250	one hundred and twenty-six	one thousand two hundred and fifty	31.5/4	31.5/2	eighty	eighty	two hundred and thirty	one hundred and eighty-five	five hundred and fifty	six hundred and twenty-three
GW22��126(D)��W��/1600		one thousand and six hundred	40/4	40/3	one hundred	one hundred

GW22-252 (D) (W) type isolating switch

model	Rated] voltage kV	rated current A	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
model	Rated] voltage kV	rated current A	Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW22��252(D)��W��/1250	two hundred and fifty-two	one thousand two hundred and fifty	40/3	40/2	one hundred	one hundred	four hundred and sixty	six hundred and six	one thousand and fifty	one thousand two hundred and fifty-six
GW22��252(D)��W��/1600		one thousand and six hundred	40/3	50/2	one hundred	one hundred
GW22��252(D)��W��/2500		two thousand and five hundred	40/2	50/2	one hundred and twenty-five	one hundred and twenty-five
GW22��252(D)��W��/3150		three thousand one hundred and fifty	40/2	50/2	one hundred and twenty-five	one hundred and twenty-five

[Outdoor isolation switch]GW4A-40.5 series high-voltage isolating switch

2026-6-19 14:22:19

GW4A-0.5 series high-voltage isolation switch structure

The complete set of isolation switch consists of GW4A-40.5 (D) (W) type isolation switch body, CS14G type manual operating mechanism, transmission accessories, etc. It can also be equipped with CJ6 type and other electric mechanisms.
The isolation switch adopts a double column center opening and contact turning structure, which has the ability of self-cleaning contacts and improves contact reliability.
The conductive circuit uses rectangular copper pipes, which increase the heat dissipation area by 40% compared to the original circular pipes, greatly reducing the temperature rise of the main electrical part.
The touch finger is made of a new type of material with high strength, high conductivity, and high elasticity. By relying on the elastic force of the contact finger itself to clamp the contact, the vicious cycle of reduced clamping force, increased contact resistance, and intensified contact heating caused by spring corrosion and thermal annealing is avoided. And the contact finger and the contact finger seat are fixed by bolts, which avoids the possibility of oil and dust entering their contact points and increasing the contact resistance. This conductive part structure has obtained a national utility model patent.
The rotating part of the isolation switch is designed to be maintenance free. The rotating seat is designed with a sealed structure, which prevents water vapor, dust, and harmful gases from entering. This ensures that the bearings and molybdenum disulfide lithium based grease always work in a good environment, the bearings never rust, the grease cannot be lost, and it never dries. This prevents the operating torque of the isolation switch from increasing after long-term operation. Adopting a structure that combines stainless steel shaft pins with oil-free self-lubricating shaft supports; The steel components are hot-dip galvanized to ensure flexible, lightweight, reliable, and rust free operation of the isolation switch.
The foot installation size of GW4A-0.5 grounding switch is exactly the same as that of GW4-40.5 isolating switch, and can directly replace GW4-40.5 isolating switch.

Main technical parameters of GW4A-10.5 series high-voltage isolating switch

model	rated voltage kV	rated current A	main circuit resistance �̦�	Rated short-time tolerance Current kA/S		Rated peak endurance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
model	rated voltage kV	rated current A	main circuit resistance �̦�	Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW4A��40.5(D)��W��/630	forty point five	six hundred and thirty	one hundred and seventy	20/4	20/3	fifty	fifty	ninety-five	one hundred and eighteen	one hundred and eighty-five	two hundred and fifteen
GW4A��40.5(D)��W��/1250		one thousand two hundred and fifty	one hundred	31.5/4	31.5/3	eighty	eighty
GW4A��40.5(D)��W��/1600		one thousand and six hundred	eighty	40/4	40/3	one hundred	one hundred
GW4A��40.5(D)��W��/2000		two thousand	seventy	40/4	40/3	one hundred	one hundred

[Outdoor isolation switch]GW4A-126 series high-voltage isolating switch

2026-6-19 14:22:10

YJDX-75-6 Vibration Motor Structure

The complete set of isolation switch consists of GW4A-126 (D) (W) type isolation switch body, CS14G or CS17G type manual operating mechanism, transmission accessories, etc. It can also be equipped with CJ6 type electric mechanism, etc.
The isolation switch adopts a double column center opening and contact turning structure, which has the ability of self-cleaning contacts and improves contact reliability.
The conductive circuit uses rectangular copper pipes, which increase the heat dissipation area by 40% compared to the original circular pipes, greatly reducing the temperature rise of the main electrical part.
The touch finger is made of a new type of material with high strength, high conductivity, and high elasticity. By relying on the elastic force of the contact finger itself to clamp the contact, the vicious cycle of reduced clamping force, increased contact resistance, and intensified contact heating caused by spring corrosion and thermal annealing is avoided. And the contact finger and the contact finger seat are fixed by bolts, which avoids the possibility of oil and dust entering their contact points and increasing the contact resistance. This conductive part structure has obtained a national utility model patent.
The rotating part of the isolation switch is designed to be maintenance free. The rotating seat is designed with a sealed structure, which prevents water vapor, dust, and harmful gases from entering, ensuring that the bearings and lithium molybdenum disulfide based grease always work in a good environment. The bearings never rust, the grease cannot be lost, and it never dries; The bearing seat is equipped with thrust ball bearings and radial ball bearings inside, which bear the gravity and horizontal force of the isolation switch through two special bearings, so that the operating torque of the isolation switch will not increase after long-term operation. Adopting a structure that combines stainless steel shaft pins with oil-free self-lubricating shaft supports; The steel components are hot-dip galvanized to ensure flexible, lightweight, reliable, and rust free operation of the isolation switch.
The foot installation size of GW4A-126 grounding switch is exactly the same as that of GW4-126 isolating switch, and can directly replace GW4-126 isolating switch.

Main technical parameters of GW4A-126 series high-voltage isolating switch

model	rated voltage kV	rated current A	main circuit resistance �̦�	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
model	rated voltage kV	rated current A	main circuit resistance �̦�	Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW4��126(D)��W��/630	one hundred and twenty-six	six hundred and thirty	two hundred	20/4	20/3	fifty	fifty	two hundred and thirty	two hundred and sixty-five	five hundred and fifty	six hundred and thirty
GW4��126(D)��W��/1250		one thousand two hundred and fifty	one hundred and twenty	31.5/4	31.5/3	eighty	eighty
GW4��126(D)��W��/1600		one thousand and six hundred	one hundred	40/4	40/3	one hundred	one hundred
GW4��126(D)��W��/2000		two thousand	seventy	40/4	40/3	one hundred	one hundred

[Outdoor isolation switch]GW5A-40.5/126 series complete set of isolation switches

2026-6-19 14:22:02

Introduction to the Structure of GW5A-40.5/126 Series Complete Isolation Switch
The complete set of isolation switch consists of GW5A-126 (D) (W) type isolation switch body, CS17 or CS17G type manual operating mechanism, transmission accessories, etc. It can also be equipped with CJ6 type and other electric mechanisms.
The isolation switch adopts a double column center opening and contact turning structure, which has the ability of self-cleaning contacts and improves contact reliability.
The conductive circuit uses rectangular copper pipes, which increase the heat dissipation area by 40% compared to the original circular pipes, greatly reducing the temperature rise of the main electrical part.
The touch finger is made of a new type of material with high strength, high conductivity, and high elasticity. By relying on the elastic force of the contact finger itself to clamp the contact, the vicious cycle of reduced clamping force, increased contact resistance, and intensified contact heating caused by spring corrosion and thermal annealing is avoided. And the contact finger and the contact finger seat are fixed by bolts, which avoids the possibility of oil and dust entering their contact points and increasing the contact resistance. This conductive part structure has obtained a national utility model patent.
The rotating part of the isolation switch is designed to be maintenance free. The rotating seat is designed with a sealed structure, which prevents water vapor, dust, and harmful gases from entering. This ensures that the bearings and molybdenum disulfide lithium based grease always work in a good environment, the bearings never rust, the grease cannot be lost, and it never dries. This prevents the operating torque of the isolation switch from increasing after long-term operation. Adopting a structure that combines stainless steel shaft pins with oil-free self-lubricating shaft supports; The steel components are hot-dip galvanized to ensure flexible, lightweight, reliable, and rust free operation of the isolation switch.
The mechanical interlocking between the main blade and the ground blade is directly installed on the main blade spindle and the ground blade spindle, without the need for a separate transmission box, reducing the workload of on-site installation and debugging.
The foot installation size of GW5A-126 grounding switch is exactly the same as that of GW5-126 isolating switch, and can directly replace GW5-126 isolating switch.

GW5A-40.5/126 series complete set of isolation switch technical parameters
GW5A��40.5

model	rated voltage kV	rated current A	main circuit resistance �̦�	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute frequency Withstand voltage kV		Thunder shock Voltage withstand kV
				Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW5A��40.5(D)��W��/630	forty point five	six hundred and thirty	one hundred and seventy	20/4	20/3	fifty	fifty	ninety-five	one hundred and eighteen	one hundred and eighty-five	two hundred and fifteen
GW5A��40.5(D)��W��/1250		one thousand two hundred and fifty	one hundred and thirty	31.5/4	31.5/3	eighty	eighty
GW5A��40.5(D)��W��/2000		two thousand	one hundred	40/4	40/3	one hundred	one hundred

GW5A��126

model	rated voltage kV	rated current A	main circuit resistance �̦�	Rated short-time tolerance Current kA/S		Rated peak tolerance Current kA		One minute power frequency Withstand voltage kV		lightning surge Voltage withstand kV
				Main electrical circuit	grounding switch	Main electrical circuit	grounding switch	to the ground	fracture	to the ground	fracture
GW5A��126(D)��W��/630	one hundred and twenty-six	six hundred and thirty	two hundred and twenty-five	20/4	20/3	fifty	fifty	two hundred and thirty	two hundred and sixty-five	five hundred and fifty	six hundred and thirty
GW5A��126(D)��W��/1250		one thousand two hundred and fifty	one hundred and twenty-five	31.5/4	31.5/3	eighty	eighty
GW5A��126(D)��W��/2000		two thousand	eighty	40/4	40/3	one hundred	one hundred

[Outdoor isolation switch]GW39-12 outdoor high-voltage isolation switch

2026-6-19 14:21:53

The GW39-12 outdoor AC high voltage isolation switch is suitable for three-phase AC power systems with a frequency of 50Hz, and is used for opening and closing no-load lines.

Product structural features:
1. The product is a three-phase linkage type, with a rod-shaped structure for the moving contact and a horizontal opening form for the opening and closing action.
2. The opening and closing transmission method uses the rotating intermediate insulator to drive the moving contact to achieve its horizontal displacement, which improves the reliability of its opening and closing.
3. The switch adopts silicone rubber composite insulation for ground insulation, which improves the overall insulation level and anti pollution ability of the switch, and also enhances its resistance to mechanical impact.
4. The contact pressure of the static contact is adjusted separately to ensure the balance of contact pressure between the moving and static contacts.
5. The operating mechanism adopts dual protection of mechanical and electromagnetic locks, avoiding the occurrence of human errors in separation and closure.

GW39-12 Outdoor High Voltage Isolation Switch

[Outdoor isolation switch]GW1-10/15 Outdoor AC High Voltage Isolation Switch

2026-6-19 14:21:45

Model and specifications of GW1-10/15 outdoor AC high-voltage isolation switch

Basic Technical Parameters of GW1-10/15 Outdoor AC High Voltage Isolation Switch

installation dimensions

GW1-10/15 Outdoor AC High Voltage Isolation Switch

[Outdoor isolation switch]GW8-40.5/72.5/126 series high-voltage isolating switch

2026-6-19 14:21:36

The GW8-40.5/72.5/126 series high-voltage isolating switch is composed of a post insulator, an insulating porcelain bottle, and a conductive part. A static contact and a connecting plate for connecting the busbar are installed on the upper part of the post insulator. There is a metal base, an operating lever, and an operating insulator between the supporting insulator and the insulating porcelain bottle seat. The base is equipped with a knife switch, and the CS8-5 manual operating mechanism is connected to the knife switch through a connecting rod, an operating insulator, and a crank arm. It can also be equipped with a CJ6 electric mechanism.

Main technical parameters of GW8-40.5/72.5/126 series high-voltage isolating switch

model	rated voltage kV	rated current A	Rated short-time Withstand current kA/S	Rated peak value Withstand current kA	One minute power frequency Withstand voltage kV	lightning surge pressure resistance kV
GW8��40.5��W��	40��5	four hundred	8/3	twenty	eighty	one hundred and eighty-five
GW8��72.5��W��	72��5	four hundred	8/3	twenty	one hundred and forty	three hundred and twenty-five
GW8��126��W��	one hundred and twenty-six	four hundred	8/3	twenty	one hundred and eighty-five	four hundred and fifty

[Outdoor isolation switch]GW13-40.5/72.5/126 series high-voltage isolating switch

2026-6-19 14:21:28

Structure Introduction
The isolation switch consists of a bracket, base, post insulator, contact, terminal block, and other parts. The post insulators and conductive parts are installed on the base, with an intersection angle of 50 ° between the two post insulators. The base is fixed on a bracket tilted at 25 degrees. The bracket is equipped with a shaft connected to the operating mechanism. Can be equipped with CS17G manual operating mechanism or CJ6 electric mechanism.

Main technical parameters of GW13-40.5/72.5/126 series high-voltage isolating switch

model	rated voltage kV	rated current A	Rated short-time Withstand current kA/S	Rated peak value Withstand current kA	One minute power frequency Withstand voltage kV	lightning surge pressure resistance kV
GW13��40.5��W��	40��5	six hundred and thirty	20/4	fifty	eighty	one hundred and eighty-five
GW13��72.5��W��	72��5				one hundred and forty	three hundred and twenty-five
GW13��126��W��	one hundred and twenty-six				one hundred and eighty-five	four hundred and fifty

GW13-40.5/72.5/126 series high-voltage isolation switch

[Outdoor isolation switch]GW10 outdoor high-voltage isolation switch

2026-6-19 14:21:20

Technical parameters of GW10 outdoor high-voltage isolation switch:

Rated voltage (kV): 12; fifteen
Rated current (A): 630
Rated short-time withstand current (kA): 20 (4S)
Rated peak withstand current (kA): 42~50
Power frequency withstand voltage (fracture) (kV): 48
Power frequency withstand voltage (relative to ground) (kV): 42
Lightning impulse withstand voltage (fracture) (kV): 85
Lightning impulse withstand voltage (relative to ground) (kV): 75
Mechanical lifespan (times): 2000

GW10 outdoor high-voltage isolation switch

[Outdoor isolation switch]HGW10 Outdoor AC High Voltage Isolation Switch

2026-6-19 14:21:11

Technical parameters of HGW10 outdoor AC high voltage isolation switch:

Rated voltage (kV): 12; fifteen
Rated current (A): 630
Rated short-time withstand current (kA): 20 (4S)
Rated peak withstand current (kA): 42~50
Power frequency withstand voltage (fracture) (kV): 48
Power frequency withstand voltage (relative to ground) (kV): 42
Lightning impulse withstand voltage (fracture) (kV): 85
Lightning impulse withstand voltage (relative to ground) (kV): 75
Mechanical lifespan (times): 2000

[Outdoor isolation switch]GW15-12-40.5-72.5 outdoor high-voltage isolation switch

2026-6-19 14:21:03

GW15-12-40.5-72.5 outdoor high-voltage isolation switch is a three-phase AC outdoor high-voltage transmission equipment with a frequency of 50Hz, used to disconnect or connect high-voltage lines under no-load conditions, change the operation mode of distribution equipment and busbars, and achieve safe electrical isolation during maintenance of busbars, circuit breakers and other electrical equipment. This product has a double column horizontal fracture vertical opening structure, and its fracture is clearly visible after opening, which is conducive to inspection. The product has the advantages of small footprint, small inter phase distance, simple structure, easy operation, and simple appearance. The conductive switch adopts a two-step action, that is, after the moving contact comes into contact with the static contact seat, the moving contact flips 40 °, so that the contact pressure between the moving and static contacts is stable and reliable, achieving close contact with the static contact finger. The assembly of the static contact seat adopts an internal hidden external pressure structure, and the contact finger spring will not produce any diversion. The rotating part bearings adopt double sealed and self-lubricating bearings to maintain good lubrication and flexible rotation, and generally require minimal maintenance. This product can be supplied from above ground level. This product complies with GB1985-2004 "AC High Voltage Isolating Switches and Grounding Switches", and is equivalent to IEC60129 (1984) "AC High Voltage Isolating Switches and Grounding Switches" and GB/T11022-1999 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards". This product is equipped with rod-shaped pillar composite insulators (which can also be equipped with porcelain insulators, classified into three level and four level anti fouling types according to the pollution conditions of use). According to the grounding method, it can be divided into four forms: "ungrounded", "front grounded (with grounding switch on the auxiliary contact side)", "rear grounded (with grounding switch on the main contact side)", and "double grounded".

Product classification
1�� GW15��12�� The 40.5 and 72.5 outdoor isolation switches are composed of three independent single-phase isolation switches, an integral channel steel crossbeam, and two columns. They are the basic unit of the derived grounding switch.
2. Install one grounding switch for each phase of the front grounding switch (with a grounding switch on the side of the auxiliary contact finger seat).
3. Install one grounding switch for each phase of the rear grounding switch (with a grounding switch on the main contact finger seat side).
4. Two grounding switches are installed for each phase of the double grounding switch.
5. The installation method is horizontal installation.
6. According to the operation mode, it can be divided into three pole linkage or single pole operation.
7. According to the type of insulator material used, ceramic insulators and composite insulators are classified.
8. According to the working environment, it is divided into Level III anti fouling and Level IV anti fouling.
9. According to the operating mechanism, the main knife (isolation switch) has two types of operating mechanisms: electric and manual, while the ground knife (grounding switch) only has a manual operating mechanism. When the main knife is manually operated, use the CS17-G hand operated mechanism or the CS9-G hand operated mechanism, and use the CS17-G hand operated mechanism for the ground knife.

Technical parameters of GW15-12-40.5-72.5 outdoor high-voltage isolation switch
1. The main technical parameters of the isolation switch are shown in Table 1, Table 1. Classification model, rated voltage, kV, rated current, A, isolation switch, grounding switch, grounding type, matching mechanism, rated peak withstand current, kA (peak), rated short-time withstand current, kA/4s (effective value), rated peak withstand current, kA (peak), rated short-time withstand current, kA/4s (effective value), isolation switch, grounding switch, anti fouling type, GW15-12 40.5 72.5 630 50 20 50 20, ungrounded, left single grounding, right single grounding, double grounding, hand-operated or manually operated mechanism, electric mechanism CS17-G �� 1250 80 31.5 80 31.5 �� 1600 100 40 100 40 �� 2000 �� 2500 �� Note: The maximum rated current of 12kV is 1250A. When ordering, please specify the product model, rated voltage, rated current, grounding type (front grounding, rear grounding, double grounding, ungrounded), anti fouling level, and special requirements for manual and electric mechanisms

[Outdoor isolation switch]GW1-12G(D) series outdoor high-voltage isolation switch

2026-6-19 14:20:54

The GW1-12G (D) series outdoor high-voltage isolation switch is a new type of switch designed according to current national and international standards to address a series of issues with the original GW1 switch. The switch itself has a grounding switch and is equipped with a CS8 manual mechanism to effectively prevent misoperation such as "live grounding wire hanging and grounding wire closing". Operators do not need to hang another grounding wire. This product has excellent electrical and mechanical performance, meeting the requirements of national standard GB1985 and international electrical standards IEC129 and IEC694. It is an updated product of the current 10kV outdoor switch.

GW1-12G (D) series outdoor high-voltage isolation switch adaptability range
Switches are used for three-phase AC 50Hz circuits, for use in time division circuits with voltage and no load. The usage conditions are as follows: (1) The altitude should not exceed 3000m, and the ambient temperature should not be lower than -40 �� or higher than+40 ��. (2) The wind speed shall not exceed 35m/s, and the seismic intensity shall not exceed 8 degrees. (3) Suitable for polluted areas such as cities and industrial and mining areas. (4) Not suitable for places with combustion and explosion hazards, severe vibrations and impacts, and chemical substances that severely corrode metals and insulation materials.

GW1-12G (D) series outdoor high-voltage isolation switch model and specifications
Model, structure, form, current level 630A 1000A 1250A ungrounded GW1-12G/630 GW1-12G/1000 GW1-12G/2.400.630.1000.1250 A moving contact grounding GW1-12G (D1)/630 GW1-12G (D1)/1000 GW1-12G (D1)/1250 static contact grounding GW1-12G (D1)/630 GW1-12G (D2)/1000 GW1-12G (D2)/1250

3. Main structure (1): The isolation switch is a three-phase electrical appliance composed of three separate single pole isolation switches. There are three structural forms: ungrounded, moving contact grounded, and stationary contact grounded. Each single pole isolation switch has the same components, such as the base pillar and the front and rear static contacts of the operating insulator, the switch blade, and the arc angle. Its appearance and main dimensions are shown in Table 2.
a. Base: The base is made of 4.5mm thick soft steel plate bent, with a shaft with a pull arm crossing the middle. There are holes drilled on the base for fixing the post insulator, installing grounding screws, and fixing each pole during installation. There is a slot on the top for the pull arm;
b. The pillars and operating insulators use ZPA-6 type (for 6 kV) and ZPA-10 type (for 12kV) pin insulators, with a minimum bending failure load of 375 and 500 kilograms. The middle operation insulator is used as a pull rod, with clamps fixed on the upper and lower parts, and the upper end connected to the switch blade. The lower end is connected to the pull arm;
c. Front and rear static contacts: The knife holder and tongue are made of purple copper plate and fixed on the post insulator. Extend the horizontal end for wiring purposes, while the bent upper part forms reliable contact with the switch blade on both sides of the wire;
d. Knife switch: Both 400A and 630A are composed of two rectangular cross-section copper plates, while the 200A is composed of one copper plate and one galvanized soft steel plate. Both ends of the blade are equipped with spiral springs to adjust the contact pressure;
e. Arc angle: It is composed of two 5mm steel needles. The stationary part is mounted on the blade tongue, and the movable part is mounted on the blade. (2) The CS8-5 manual knife operating mechanism is suitable for ungrounded switches and can be equipped with F1-4 auxiliary switches; The CS manual operating mechanism is suitable for grounding form isolation switches. It is a new type of single handle dual action manual operating mechanism, which can achieve the operation program of "main opening ground closing ground opening main closing" with one mechanism and one handle, without any misoperation.

4. Technical Parameters Project Unit Parameters Remarks Rated Voltage kV 12 Grounding Knife and Main Knife Values Same Rated Current A 200, 400, 630, 1000, 1250 Dynamic Stability Current (Peak) kA 15, 25, 50, 63, 100 Thermal Stability Current (Effective Value) kA 7, 14, 20, 25, 40 Thermal Stability Time s 4

5. Precautions for use (1) Inspection before operation: The contact parts of the conductor should be in good contact, the connection between the switch and the busbar should be reliable, and all moving parts should be flexible. (2) The switch must be operated only after the line load is cut off during operation. (3) The switch should undergo a comprehensive maintenance once a year, which mainly includes inspecting the conductive contact surface, lubricating the moving parts, replacing damaged components, and surface rust prevention treatment.
6. Outline and installation dimensions: GW1-12G/200400.60A GW1-12/200.400.630 type isolating switch Outline drawing Model: Main outline dimensions (mm) H B B1 B2 B3 GW1-12/200 370 670 620 510 GW1-12/400 370 370 620 510 GW1-12/400 670 370 620 510 GW1-12/630 370 670 370 620 510 2. GW1-12/200.400.600 type isolating switch is operated by a CS8-1 manual operating mechanism, and the outline and main dimensions of the operating mechanism are shown in Figure 2. The F1 type auxiliary switch is fixed on the support plate of the operating mechanism, and its boom is connected to the Xiao Zi on the mechanism handle. When the handle is opened and closed by 120 degrees, the auxiliary switch is also opened and closed by 120 degrees. The auxiliary switch is generally used for signal indication and can also be used for electrical interlocking if necessary. The signal wiring is shown in Figure 3. CS8-1 Hand operated Mechanism Outline Drawing Auxiliary Switch Signal Wiring Diagram

[Outdoor isolation switch]GW4B-12(W) outdoor high-voltage isolation switch

2026-6-19 14:20:46

Product Features

The GW4B-12 (W) outdoor high-voltage isolation switch is a new type of outdoor high-voltage isolation switch developed by our company. It is characterized by a novel structure, reliable performance, and meets the updated national standards for high-voltage isolation switches. It has the advantages of strong corrosion resistance and pollution resistance, and is suitable for places with poor working environments.

The GW4B-12 (W) outdoor high-voltage isolation switch breaks the traditional structure of similar products in the design and manufacturing process. Its conductive contacts are made of a new type of special material, and the conductive contacts are self operated. The traditional high-voltage isolation switch's conductive contacts are compressed by a spring, which often reduces the clamping force of the contacts due to the heating of the spring during operation, forming a vicious cycle. The self operated contacts can effectively exhaust this situation and keep the contacts in good working condition. The rotating part of the conductive contact blade adopts a stainless steel shaft and oil-free lubricated bearing structure to ensure lightweight and flexibility, and there will be no jamming phenomenon. All black metal parts are treated with powder infiltration new technology and then coated with protective paint for double protection to ensure that the product is in good working condition for 20 years. Not corroded.

main purpose

GW4B-12 (W) type isolating switch is an outdoor high-voltage electrical appliance used for closing and breaking AC power circuits with a rated voltage of 12KV and a rated frequency of 50HZ, with voltage and no load.

Applicable environmental conditions

a. Altitude: not exceeding 2000m;
b. Surrounding air temperature: -30 �� to+40 ��;
c. Wind speed not exceeding 35m/s;
d. No obvious pollution sites such as severe dust, pollution, flammable and explosive substances, chemical corrosion, etc;
e. No places with frequent and severe vibrations.

Main structure of the product

a. GW4B-12 (W) type isolating switch is a three-phase linkage type, equipped with CS11 type manual operating mechanism. Two post insulators are fixed on the bearing seats at both ends of the base, connected by joints and connecting rods. When rotating horizontally, one post insulator is rotated, while the other post insulator is pulled to rotate in the opposite direction, causing the contact blade to separate or close. The rotation angle of the post insulator is about 90 °. When the three are connected, the poles are linked by connecting rods. The creepage distance of the post insulator used in the isolation switch is �� 31mm/kv.
b. The operating mechanism consists of an operating handle, a base, an auxiliary switch, a cover, and a positioning locking device. The operating handle rotates 90 degrees. Equipped with F6 auxiliary switch, it is used to transmit the "open" and "close" signals of the main switch and the electrical interlocking information between the isolation switch and the circuit breaker.
c. The black metal components in the isolation switch and manual operating mechanism are both treated with hot-dip galvanizing or vacuum powder galvanizing technology to prevent corrosion.

Technical data

GW4B-12 (W) outdoor high-voltage isolation switch

[Outdoor isolation switch]GWZ-3.6 outdoor DC isolation switch

2026-6-19 14:20:38

GWZ-3.6 Outdoor DC Isolation Switch

a. GWZ-3.6 outdoor DC isolation switch is a new type of isolation switch developed by our company for urban underground railways and urban light rails. It is used for breaking and closing voltage free circuits in subway electric locomotives and urban light rail DC 3600V and below power lines.
b. This type of DC isolation switch has a novel structure and reliable performance.
c. The main electrical part of this type of DC isolation switch adopts a plug-in type with self-cleaning function. The contact fingers of the movable contact parts are made of special materials with high strength, high elasticity, and high conductivity, overcoming the disadvantages of traditional switches that use springs to press the contacts and fingers, which are prone to heat generation and reduce the clamping force of the fingers during operation, ensuring that the fingers always maintain good working condition.
d. The rotating friction part of the transmission part of this type of DC isolation switch adopts oil-free self-lubricating bearings to ensure easy and flexible operation, reduce wear, and extend service life.
e. All black metal parts of this type of DC isolation switch are treated with vacuum powder zinc infiltration technology and then coated with protective paint for dual protection, which has strong anti pollution and anti-corrosion capabilities.

Main structure of the product
a. The GWZ-3.6 DC isolation switch is a single pole type, consisting of the isolation switch body, CS manual operating mechanism, and accessories.
b. This isolation switch is opened vertically, with a break and a distance to ground of not less than 200mm.
c. This isolation switch consists of a base channel steel, a post insulator, an operating insulator terminal block, a conductive rod, contacts, and contact fingers.
Environmental conditions for use
a. Altitude: not exceeding 2000 meters.
b. Surrounding air temperature: -30 ��+40 ��.
c. The wind speed shall not exceed 35m/s.
d. There are no obvious pollution sites such as severe dust, pollution, explosive and flammable substances, and chemical corrosion.
e. No places with frequent and severe vibrations.

Technical data

model	rated voltage kV	rated current A	loop resistance �̦�	4S short-time withstand current kA	1-minute withstand voltage kV	Supporting organization	Weight Kg
GWZ-3.6/1250	three point six	one thousand two hundred and fifty	one hundred	twenty	eighteen	CS	twenty-five
GWZ-3.6/2000		two thousand	seventy-five	twenty-five			twenty-seven point five
GWZ-3.6/3150		three thousand one hundred and fifty	fifty	thirty-one point five			thirty

[Outdoor isolation switch]GW5-40.5D(W)/630 Outdoor AC High Voltage Isolation Switch

2026-6-19 14:20:29

The GW5 series outdoor AC isolation switch is an outdoor high-voltage electrical equipment with an AC frequency of 52Hz, with rated voltage levels of 40.5kV, 72.5kV, and 126kV. It is used for opening and closing high-voltage lines under no-load conditions, as well as for electrically isolating high-voltage busbars, circuit breakers, and other electrical equipment under maintenance from live high-voltage circuits. It can also be used for opening and closing small capacitor or inductor currents.

GW5-40.5D (W)/630 outdoor AC high voltage isolation switch meets the relevant provisions of GB1985 "AC High Voltage Isolation Switches and Grounding Switches", IEC60129 "AC Isolation Switches and Grounding Switches", and GB/T11022 "Common Technical Requirements for High Voltage Switchgear and Control Equipment Standards".

Environmental conditions for use:

+Altitude: not exceeding 3000m;
+Surrounding air temperature: upper limit 40 ��, lower limit -25 ��;
+Wind speed not exceeding 35m/s;
+The seismic intensity shall not exceed 8 degrees;
+The pollution level shall not exceed level III;
+The thickness of ice cover shall not exceed 10mm;
+The installation site should be free from flammable, explosive hazards, chemical corrosion, and severe vibrations.

Classification

Model number

rated
voltage
��V��

rated
current
��A��

disconnecting switch

grounding switch

grounding
kind

peak
tolerance
current
��kA��

short-term
tolerance
current
��kA��

peak
tolerance
current
��kA��

short-term
tolerance
current
��kA��

Type I

Type II

Type I

Type II

General type
(Anti fouling type)

GW5 HGW5	-40.5	(D��DW)
	-72.5��
	-126

forty point five
seventy-two point five
one hundred and twenty-six

six hundred and thirty

fifty

20 (4s)

fifty

eighty

twenty
(4s)

thirty-one point five
(4s)

not grounded
Single grounding
Double grounding

one thousand

one thousand two hundred and fifty

eighty

31.5 (4s)

one thousand and six hundred

31.5 (4s)

two thousand

Structure Introduction:
Each isolation switch consists of two pole insulators, each fixed on a base at an angle of 50 °The V-shaped structure mainly consists of the following parts: base part, post insulator, terminal block part, contact part, grounding knife, grounding static contact, terminal block, etc.
This isolation switch is divided into three types: ungrounded, single grounded, and double grounded. There is a mechanical interlock between the spindle and the grounding knife, and it is equipped with an auxiliary switch. There are two operation modes for the switch: manual and electric.

GW5-40.5D (W)/630 Outdoor AC High Voltage Isolation Switch Appearance and Installation Dimensions:

Figure 1 GW5-40.5 (126) D/630 Single pole Isolation Switch

Figure 2 Installation diagram of switch three pole linkage

Model number	Rated voltage (kV)��	L1 (mm)	L2 (mm)	L3 (mm)	L4 (mm)	L5 (mm)	L1 (mm)
GW5-110	one hundred and twenty-six	��2000	��2800	��1473	��1569	��1533	��1362
GW5-35	forty point five	��1200	��1600	��830	��1000	��845	��700

GW5-40.5D (W)/630 Outdoor AC High Voltage Isolation Switch

[Outdoor isolation switch]GW4-126D(W) Outdoor AC High Voltage Isolation Switch

2026-6-19 14:20:20

GW4-126 outdoor AC high voltage isolation switch (hereinafter referred to as isolation switch). Suitable for power systems with a frequency of 50Hz and a rated voltage of 126kV, used as a switching circuit when there is voltage and no load. The anti fouling isolation switch can meet the requirements of users in heavily polluted areas and effectively solve the problem of pollution flashover during the operation of the isolation switch.

Model and its meaning

Environmental conditions for use:
+Altitude: below 3000m;
+Environmental temperature: upper limit of 40 ��, decrease by -25 ��;
+Wind speed not exceeding 35m/s;
+The seismic intensity shall not exceed 8 degrees;
+The thickness of ice cover shall not exceed 10mm;
+Pollution resistant products are suitable for heavily polluted areas;
+The installation site should be free from flammable, explosive hazards, chemical corrosion, and severe vibrations.

GW4-126D (W) Outdoor AC High Voltage Isolation Switch Main Technical Parameters:

serial number	Project		unit	Technical specifications		Remarks
one	rated voltage		kV	one hundred and twenty-six
two	rated current		A	six hundred and thirty	one thousand two hundred and fifty
three	Rated peak withstand current		kA	fifty	eighty
four	4sShort time withstand current		kA	twenty	thirty-one point five
five	Rated static tension of the terminal		N	seven hundred and thirty-five
six	rated frequency		Hz	fifty
seven	1minPower frequency withstand voltage (effective value)		kV	Jijian*Extremely to the groundeight hundred and fifteen		*Suitable for three pole linkage
				fracturetwo hundred and ten
eight	Lightning impulse withstand voltage (effective value)		kV	Jijian*Extremely to the groundfour hundred and fifty		*Suitable for three pole linkage
				fracturefive hundred and twenty
nine	Product single pole weight (body)		kg	��two hundred and forty
ten	Supporting organization			Isolating switch:CS14Manual mechanism Grounding switch:CS14Manual mechanism		Selected by the user
eleven	Grounding form			Ungrounded, single grounded, or double grounded
twelve	Crawling distance of pillar insulators		mm	Normal typeone thousand eight hundred and seventyPollution resistant typethree thousand and fifty		Special orders can also be accepted
thirteen	Assemble grounding switch	Short time withstand current	kA	12.5(2s)	20(2s)
		Peak withstand current	kA	thirty-one point five	fifty

Main structural description
The isolation switch is a double column horizontal rotating type, consisting of a chassis, post insulators, conductive system, grounding switch (excluding ungrounded), and transmission system. The products are divided into two types: ordinary type and stain resistant type. The pollution resistant type can be used in Class III polluted areas.
According to user needs, the grounding knife equipped with the product is assembled on the rotating shaft of the base. The static contact is installed on the main electrical system pole, and there is a mechanical interlock between the grounding switch and the isolation switch, which can ensure the sequential action of the main switch and the ground switch and the main switch (the power distribution mechanism can be used as needed).
The isolation switch is made in a single pole form and can form a three pole linkage through inter pole connections. This switch can also be used single pole as needed.
When the isolating switch is equipped with CS14 manual support mechanism, one non grounded mechanism is equipped, two single grounded mechanisms are equipped, and three double grounded mechanisms are equipped.

GW4-126D (W) Outdoor AC High Voltage Isolation Switch Appearance and Installation Dimensions (The following image can be clicked to enlarge)

Figure 1 GW4-126D �� W (Double Grounding) Outdoor AC High Voltage Isolation Switch (with CS14 Mechanism)

Figure 2: Dimensions of the wiring board

Figure 3 Installation dimensions of the base

[Outdoor isolation switch]GW4-17.5(40.5) Outdoor AC High Voltage Isolation Switch

2026-6-19 14:20:12

GW4-17.5 (40.5) Outdoor AC High Voltage Isolation Switch Model and Its Meaning

Environmental conditions for use:
+Altitude not exceeding 3000m;
+The upper limit of ambient temperature is+40 ��, and the lower limit is -25 ��;
+Wind speed not exceeding 35m/s;
+Places without conductive or chemically reactive gases and vapors;
+Places without fire or explosion hazards (with pollution levels not exceeding Level III);
+The seismic intensity shall not exceed 8 degrees.

GW4-17.5 (40.5) Outdoor AC High Voltage Isolation Switch Main Technical Parameters

model

Rated voltage (kV)

Rated current (A)

Peak withstand current (kA)

4-second short-time withstand current (kA)

GW4	-17.5
HGW4

seventeen point five

two hundred

forty

sixteen

four hundred

fifty

twenty

six hundred and thirty

fifty

twenty

one thousand

sixty-three

twenty-five

one thousand two hundred and fifty

sixty-three

twenty-five

GW4	40.5(D)
HGW4

forty point five

four hundred

fifty

twenty

six hundred and thirty

fifty

twenty

one thousand

sixty-three

twenty-five

one thousand two hundred and fifty

eighty

thirty-one point five

Main structural description:

The isolation switch consists of a base, insulating support, conductive parts, and operating mechanism. Each pole has two pillars, and each pillar is equipped with a conductive blade at the upper end. The contact points of the two blade contacts are located in the middle of the two pillars. The lower ends of the pillars are equipped with bearing sleeves, which, under the drive of the operating mechanism, can rotate the blade horizontally by 90 degrees to achieve the requirements of opening and closing the switch. The isolation switch is a single pole type, and it can also be connected by a connecting rod to form a linkage pole type. Equipped with CS11 (ungrounded), CS8-6D (single grounded), CS17 (double grounded) manual mechanisms for operation. It is not difficult to see from the above structural introduction that the structure of this isolation switch is reasonable and the operation is flexible and easy; Can be used as a single pole or three pole, easy to install; The contact blade has a large opening distance, ensuring safe and reliable insulation. According to user needs, it can be ungrounded or equipped with single-sided grounding or double grounding.

Figure 1 GW4-17.5D/630 Three pole Linkage Assembly Diagram

Figure 2 GW4-17.5D/630 Single pole Isolation Switch

Assembly form: Single pole assembly or three pole linkage assembly (the following image can be clicked to enlarge)

Figure 3 Assembly diagram of GW4-40.5D/630 three pole linkage

Figure 4 GW4-40.5D/630 Single pole Isolation Switch

Please indicate when placing an order:
Product name, model, and main technical data; Environmental conditions for use; Installation method and requirements for grounding devices; Model of operating mechanism; If there are other special requirements, they can be resolved through negotiation

[Outdoor isolation switch]GW9-15kV Outdoor isolation switch

2026-6-19 14:20:04

Model Type	Rated Voltage kV	Rated current A	4S heat steady current (A)	Shock current A to stabilize customer current	Impulse withstand voltage (kV)		Power frequency withstand voltage (kV)
Model Type	Rated Voltage kV	Rated current A	4S heat steady current (A)	Shock current A to stabilize customer current	Relatively Earth	Between fractures	Relatively Earth	Between fractures
GW9-15G/400	fifteen	four hundred	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	eighty-five	thirty-eight	forty-two
GW9-15G/630	fifteen	six hundred and thirty	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	eighty-five	thirty-eight	forty-two

GW9-15kV outdoor isolation switch

[Outdoor isolation switch]GW8,GW13 series neutral point isolation switch

2026-6-19 14:19:55

The GW8 and GW13 series neutral point isolation switches are AC 50HZ outdoor devices used for connecting the neutral points of transformers when there is no load. GW8-35, 60110G/400G models are operated by CS8-1 manual operating mechanism; GW13-35�� 63110/630 type is operated by an electric motor operating mechanism or CS17-G type manual operating mechanism.

model	rated voltage KV	maximum voltage KV	rated current A	Dynamic stable current (Peak) KA	Thermal stability current KA-S	creepage distance mm	Rated static tension of terminal N	weight KG
GW8-35G(W)	thirty-five	forty point five	four hundred	twenty	8-4	Regular 625 Anti pollution 875	five hundred	~80
GW8-60G(W)	sixty-three	sixty-nine				Ordinary 1100 Anti pollution 1600	five hundred	~100
GW8-110G(W)	one hundred and ten	one hundred and twenty-six				Ordinary 1870 Anti pollution 2750	seven hundred and fifty	~120
GW13-35(W)	thirty-five	forty point five	six hundred and thirty	fifty-five	16-4	Regular 625 Anti pollution 875	five hundred	~125
GW13-63(W)	sixty-three	sixty-nine				Ordinary 1100 Anti pollution 1600	five hundred	~233
GW13-110(W)	one hundred and ten	one hundred and twenty-six				Ordinary 1870 Anti pollution 2750	seven hundred and fifty	~244

[Outdoor isolation switch]GW5 series outdoor high-voltage isolation switch

2026-6-19 14:19:47

The GW5 series outdoor high voltage isolation switch is a three-phase AC 50HZ outdoor high voltage electrical device used for voltage and no-load division circuits.
The GW5 series outdoor high-voltage isolation switches are divided into two types based on their external insulation capacity: ordinary type and pollution resistant type. Both types can be equipped with grounding switches, which can be single grounded or double grounded. Grounding switches are further divided into Type I and Type II based on their ability to withstand the thermal effects of short-circuit currents.

Structure:
The GW5 series outdoor high-voltage isolation switch is equipped with a CS17 manual operating mechanism, which is equipped with an electromagnetic lock and an interlocking board to achieve interlocking between the main switch blade of the isolation switch and the grounding switch.

Product Model Type Parameter Data Project Name: Item		GW5-40.5D D(W)	GW5-72.5D D(W)	GW5-126D D(W)
Rated Voltage KV		forty point five	seventy-two point five	one hundred and twenty-six
Rated current A		630 1250 1600
Rated short time withstand current (RMS) kA		20 31.5
Rated short circuit suspected time S		four
Rated peak withstand current (peak) kA		50 80
Rated mechanical load of terminal (axial)		five hundred	five hundred	seven hundred and fifty
Rated short-time power frequency withstand voltage (effective value) Rated short-time power frequence �� withstand voltage(rms) kV	to the ground to each	eighty-five	one hundred and forty	one hundred and eighty-five
	fracture between breaks	one hundred and ten	one hundred and sixty	two hundred and ten
Rated lightning impulse withstand voltage (peak) Lightning impulse withstand voltage(peak) KV	to the ground to each	one hundred and eighty-five	three hundred and twenty-five	four hundred and fifty
	fracture between breaks	two hundred and fifteen	three hundred and seventy-five	five hundred and twenty
Rated parameters of grounding switch assembled with isolation switch Technical data of earthing switch is connected with disconnector
Type I Type	4s rated short-time withstand current (effective value) 4s short time withstand current(rms) kA	eight
	Rated peak withstand current (peak) Peak withstand current(peak) kA	twenty
Type II Type��	1-second rated short-time withstand current (effective value) 1s short time withstand current(rms) kA	20 31.5
	Rated peak withstand current (peak) Peak withst and current(peak) kA	50 80

[Outdoor isolation switch]GW1 series outdoor single-phase high voltage isolation switch

2026-6-19 14:19:38

The GW1 outdoor single-phase four phase high voltage isolation switch consists of a base, pillar porcelain insulators, and conductive parts.

model	rated voltage kv	Maximum working electricity kv	rated current A	Dynamic stable current KV (peak value)	10s thermal stability current KA (effective value)	weight kg
GW1-6/200	six	six point nine	two hundred	fifteen	five	fourteen
GW1-6/400	six	six point nine	four hundred	twenty-five	ten	fifteen
GW1-10/200	ten	eleven point five	two hundred	fifteen	five	nineteen
GW1-10/400	ten	eleven point five	four hundred	twenty-five	ten	twenty
GW1-10/630	ten	eleven point five	six hundred and thirty	thirty-five	fourteen	twenty-one
GW1-10W/200	ten	eleven point five	two hundred	fifteen	five	nineteen
GW1-10W/400	ten	eleven point five	four hundred	twenty-five	ten	twenty
GW1-10W/630	ten	eleven point five	six hundred and thirty	thirty-five	fourteen	twenty-one

GW1 series outdoor single-phase high voltage isolation switch

[Outdoor isolation switch]GW9-12(W) series outdoor AC high voltage isolation switch

2026-6-19 14:19:29

GW9-12 (W) series outdoor high-voltage isolation switch is a single pole structure high-voltage switchgear used for opening and closing circuits in outdoor 12 kV line networks with voltage and no load. Equipped with fixed hooks and self-locking devices, flexible and reliable, using insulated hook rods for operation. The anti pollution outdoor high-voltage isolation switch can meet the requirements of users in severely polluted areas and effectively solve the problem of pollution flashover during the operation of the isolation switch

GW9-12 (W) series outdoor AC high voltage isolation switch operating environmental conditions
1. Altitude not exceeding 1000m;
2. Surrounding air temperature: upper limit+40 ��, lower limit -30 �� in general areas, -40 �� in high-altitude areas;
3. The wind pressure shall not exceed 700Pa (equivalent to a wind speed of 34m/s);
4. The seismic intensity shall not exceed 8 degrees;
5. Places without frequent and severe vibrations;
6. Ordinary installation sites should be free of gases, vapors, chemical deposits, salt spray, dust, and other explosive and corrosive substances that seriously affect the insulation and conductivity of isolation switches;
7. Anti pollution type is suitable for heavily polluted areas, but should not contain substances that can cause fires or explosions.

model	rated voltage	rated voltage	4S thermal stability current (effective value) 4S	Dynamic stability current (peak value)	Full wave impulse withstand voltage			power frequency withstand voltage
					Relative to ground (KV)		Between segments	Relative to ground (KV)	Between segments
GW-12/400-12.5	twelve	four hundred	twelve point five	thirty-one point five	seventy-five	eighty-five		forty-two	forty-eight
GW-12W/400-12.5
GW9-12/630-20	twelve	six hundred and thirty	ten	fifty	seventy-five	eighty-five		forty-two	forty-eight

GW9-12 (W) series outdoor AC high voltage isolation switch

[Outdoor isolation switch]GW4-15 outdoor high-voltage isolation switch

2026-6-19 14:19:20

GW4-15 series outdoor AC high voltage isolation switch. Rated current: 200, 400, 630A. Suitable for use in power systems with a frequency of 50Hz and a rated voltage of 15KV, as a time division circuit with voltage and no load, and also for use in railway automatic block signaling devices. And it can be used at a single level. The anti fouling isolation switch can meet the requirements of users in heavily polluted areas and effectively solve the problem of pollution flashover that occurs during the operation of the isolation switch.

GW4-15 outdoor high-voltage isolation switch operating environment:
Altitude: 1000-3000m area.
Environmental temperature: upper limit+40 ��, lower limit -35 �� (not lower than -40 �� in high-altitude areas).
The wind speed does not exceed 34m/s
Earthquakes should not exceed 8 degrees Celsius.
The thickness of ice cover shall not exceed 10mm.
Pollution resistant products are suitable for heavily polluted areas.
Not suitable for places with flammable substances, explosion hazards, chemical corrosion, and severe vibrations.

Isolation switches are not suitable for:
1. Places where conductive or chemically reactive gases or vapors act;
2. Places where a large amount of dust accumulates;
3. Places with fire and explosion hazards;
4. Places with severe vibrations or impacts.

Technical parameters of GW4-15 outdoor high-voltage isolation switch:

model	rated voltage	The highest job	rated current	Extreme Pass	4-second thermal stability current	Ice breaking thickness	Bus Maximum	Matching operation
model	kv	Voltage kV	A	Current (peak value) kA	(Effective value) kA	mm	Horizontal tensile force kg	Institution model
GW4-15/200	fifteen	seventeen point five	two hundred	fifteen	five	ten	two hundred and fifty	CS11-1
GW4-15/400	fifteen	seventeen point five	four hundred	twenty-five	ten	ten	two hundred and fifty	CS11-1
GW4-15/600	fifteen	seventeen point five	six hundred	thirty-five	fourteen	ten	two hundred and fifty	CS11-1

5�� Ordering Notice:
Clearly state the model and name, rated voltage, and rated current;
Indicate grounding form: ungrounded, single grounded, double grounded;
Installation method; Model and quantity of operating mechanism, whether it is single pole operation or triple pole linkage;
Spare parts and components

[Outdoor isolation switch]GW4-40.5 outdoor high-voltage isolation switch

2026-6-19 14:19:11

GW4-40.5 outdoor high-voltage isolation switch

[Outdoor isolation switch]HGW9-10kV series isolating switch

2026-6-19 14:19:02

HGW9-10kV series isolating switch

HGW9-10kV

Model Type	Rated voltage KV	Rated current A	4S heat stable current (A)	Dynamic stability current Shock current A	Impulse withstand voltage (KV)		Power frequency withstand voltage (KV)
Model Type	Rated voltage KV	Rated current A	4S heat stable current (A)	Dynamic stability current Shock current A	Relatively Earth	Between fractures	Relatively Earth	Between fractures
HGW9-10W/200	twelve	two hundred	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	eighty-five	thirty-eight	forty-two
HGW9-10W/400	twelve	four hundred	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	eighty-five	thirty-eight	forty-two
HGW9-10W/630	twelve	six hundred and thirty	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	eighty-five	thirty-eight	forty-two
HGW9-10W/1000	twelve	one thousand	twelve thousand and five hundred	thirty-one thousand and five hundred	seventy-five	eighty-five	thirty-eight	forty-two

HGW9-10kV series isolating switch

[Outdoor isolation switch]GW1-12 series outdoor AC high voltage isolation switch

2026-6-19 14:18:54

The GW1 outdoor high-voltage isolation switch (hereinafter referred to as the isolation switch) is suitable for installation on outdoor 12kV lines, for use in the circuit when there is voltage and no load.

The GW1-12 series outdoor AC high voltage isolation switch fully considers the different needs of users and comes in two forms: with grounding knife and without grounding knife. A switch with a grounding knife, equipped with a CS �� type manual mechanism, can prevent misoperation such as hanging a grounding wire when live and closing an isolation switch with a grounding wire. The operator also does not need to hang another grounding wire. This isolation switch has two types: ordinary type and anti fouling type. The anti fouling isolation switch can meet the requirements of severely polluted areas and effectively solve the problem of pollution flashover that occurs during the operation of the isolation switch. The product meets the requirements of standards such as GB1985 and GB/T11022.

Structural characteristics:
The isolation switch consists of three single pole switches. Each single pole isolation switch has the same components, including a base pillar and an operating insulator
Edge, front and rear static contacts, switch blades, etc. According to user needs, those with grounding knives are equipped with CS �� operating mechanisms, while those without grounding knives are equipped with CS8-
Type 5 operating mechanism. The product has a large opening distance and is easy to operate and reliable.
When there is no circuit breaker on the line or the circuit breaker fails, the isolating switch is allowed to be opened and closed in the following situations:;
Separate and combine the voltage transformers used for measurement;
Separate and combine the charging current on the busbar equipment;
Separate and combine the no-load current of the power transformer (at this time, the capacity of the transformer shall not exceed 750kVA).

model	Rated voltage kV	Maximum working voltage kV	Rated current A	Dynamic stability current kA (peak value)	10S thermal stability current kA (effective value)
GW1-6/200	six	seven point two	two hundred	fifteen	five
GW1-6/400	six	seven point two	four hundred	twenty-five	ten
GW1-10/200	ten	twelve	two hundred	fifteen	five
GW1-10/400	ten	twelve	four hundred	twenty-five	ten
GW1-10/600	ten	twelve	six hundred	thirty-five	fourteen
GW1-10W/200	ten	twelve	two hundred	fifteen	five
GW1-10W/400	ten	twelve	four hundred	twenty-five	ten
GW1-10W/600	ten	twelve	six hundred	thirty-five	fourteen

model	Main dimensions mm
model	L	L1	Ltwo	H	A	A1
GW1-6/200��400	five hundred and sixty	five hundred	one hundred and fifty	three hundred and twenty-five	four hundred and twenty	two hundred and eighty
GW1-10/200��400��600	six hundred and seventy	six hundred and twenty	one hundred and eighty	three hundred and sixty-three	five hundred and ten	three hundred and seventy

[Outdoor isolation switch]GW5-40.5 outdoor high-voltage isolation switch

2026-6-19 14:18:45

The GW5-40.5 outdoor high-voltage isolation switch consists of the GW5-40.5, 126 (D) (W) type isolation switch body, CS17G or CS17G type manually operated mechanism, transmission accessories, etc. It can also be equipped with CJ6 type and other electric mechanisms.
The isolation switch belongs to the double column V-shaped horizontal opening type, and each single stage is composed of a base, a post insulator, an outlet socket, and contacts. It consists of two supports at a 50 ° angle, and the two post insulators are installed on the bearings at both ends of the base at an angle to each other, and are perpendicular to the base. The main electrical components are installed above the two pillar insulation porcelain bottles and rotate approximately 90 degrees with the pillar insulation porcelain bottles.

The copper braided strip soft connections in the GW5-40.5 outdoor high-voltage isolation switch outlet socket are respectively fastened to the conductive rod and the terminal block, which is used by users to connect the circuit.
The contact fingers of the middle contact part are assembled in pairs, using self operated contact fingers in the form of a rotating type to reduce wear between the contacts and fingers during opening and closing, and improve service life.
When the isolation switch is equipped with a grounding switch, the interlocking between the main electrical circuit and the grounding switch is ensured by the fan-shaped plate and arc-shaped plate on the base. When the main electrical circuit is closed, the grounding switch cannot be closed, and when the grounding switch is closed, the main electrical circuit cannot be closed.

[Outdoor isolation switch]GW4 series outdoor AC high voltage isolation switch

2026-6-19 14:18:37

GW4 series outdoor AC high voltage isolation switch

1. Altitude less than 2000m;
2. The maximum ambient temperature shall not exceed+40 ��, the minimum ambient temperature shall not be lower than -30 ��, and the coldest area shall not be lower than -40 ��;
3. The wind speed does not exceed 35m/s;
4. The seismic intensity shall not exceed 8 degrees;
5. The thickness of ice cover shall not exceed 10mm;
6. The installation site should be free of flammable and explosive dangerous goods, chemical corrosion, and severe vibration;
7. Pollution level of post insulators: ordinary type is level 0, and anti fouling type is level II.

The GW4 series outdoor AC high voltage isolation switch meets the requirements specified in GB1985-89 "AC High Voltage Isolation Switches", IEC129 (1984) "AC Isolation Switches and Grounding Switches", and IEC694 (1980) "Common Provisions for High Voltage Switchgear and Control Equipment".

Main technical parameters

Note: The values in parentheses in the table are actual experimental values
The bearing seat should rotate flexibly; The wiring socket should rotate flexibly, with a turning angle of not less than 90 degrees; Fasteners should be firm and not loose;
Measure the resistance data of the main circuit

GW4 series outdoor AC high voltage isolation switch