Shanghai Huabang Industrial Business Network - changeover switch

[CAM switch]LW39-10 series universal transfer switch

2026-6-18 12:30:42

The LW39-10 series universal transfer switch has a small size, reliable performance, powerful functions, and easy installation. Suitable for communication at 50-60Hz, voltage 440V and below; Used for control, conversion, signal, program selection, lighting, and electrical measurement instrument conversion in electrical equipment with DC 220V and below and control circuits of CNC programmable machine tools.
Single hole installation, with a central circular hole of either 16mm or 22mm for installation, which can be installed together with the button configuration;
Easy to install, the conversion switch consists of two parts: the installation head and the switch base, which are connected by a quick connect locking mechanism. When installing, first install the installation head, and then plug in the switch base for quick locking;
The appearance is small and beautiful, with a panel size of 30 × 30, and the emblem board has a metallic stripe luster on the base color, with clear and beautiful logos;
Gold plating on contacts to improve switch contact reliability;
Multiple combination styles, with a specified heating current of 10A;
Positioning operation angles of 30 °, 45 °, 60 °, 90 °, self resetting operation angle of 30 °, positioning positions of 2-12 positions; The number of contacts can reach up to 16;
Protection level IP65.

meet the standard
GB/T14048.1 GB14048.5 IEC60947-3 IEC337-1 VCE0660

working conditions
Altitude not exceeding 2000 meters
Environmental temperature -25 �� -55 ��
The relative humidity of the air does not exceed 90%
Installation Category II
Pollution level 3
Model meaning

1. Basic model meaning

[Welding machine switch]KDHC-32.6x3 Welding machine switch

2026-6-18 10:48:00

KDHC-32.6x3 welding machine switch

[Welding machine switch]KDHC-32/6x10 Welding machine switch

2026-6-18 10:47:43

KDHC-32/6x10 welding machine switch

[Welding machine switch]KDHc series welding machine switch

2026-6-18 10:47:34

The KDHc series welding machine switch (hereinafter referred to as the switch) is mainly used for various welding machines with AC 50Hz (or 60Hz) rated voltage of 440V and below, regulating current of 200A and below. It can also be used for controlling and transforming the main circuit and auxiliary electrical appliances of electrical equipment.
The product complies with GB 140.3-2002 and JB/T 10498-2005.

Technical parameters of KDHc series welding machine switch

Model			KDHc-20	KDHc-25	KDHc-32	KDHc-40	KDHc-63
Rated heating current	ITH	A	twenty	twenty-five	thirty-two	forty	sixty-three
Rated working voltage	Ue	V	240/440	240/440	240/440	240/440	240/440
Rated working current	Le
AC-21A		A	twenty	twenty-five	thirty-two	forty	sixty-three
Number of operation cycles
no-load			eight thousand and five hundred	eight thousand and five hundred	eight thousand and five hundred	eight thousand and five hundred	eight thousand and five hundred
On load			one thousand and five hundred	one thousand and five hundred	one thousand and five hundred	one thousand and five hundred	one thousand and five hundred
total			ten thousand	ten thousand	ten thousand	ten thousand	ten thousand
Operating frequency			one hundred and twenty	one hundred and twenty	one hundred and twenty	one hundred and twenty	one hundred and twenty

KDHc series welding machine switch external dimensions and installation dimensions

Model	Dimensions (mm)			Installation size (mm)
Model	Lmax	Imax	A	E	F	G	G1	G2
KDHc-20	25+12n	thirty-eight	��48±0.31	32±0.16	36±0.31	��9.5	��3.5	��4.5
KDHc-25	34+13.3n	thirty-seven	��64±0.37	36±0.31	48±0.31	��9.5	��4.5	��4.5
KDHc-32	34+13.3n	thirty-seven	��64±0.37	36±0.31	48±0.31	��9.5	��4.5	��4.5
KDHc-40	34+17.5n	thirty-seven	��64±0.37	36±0.31	48±0.31	��9.5	��4.5	��4.5
KDHc-63	34+17.5n	thirty-seven	��64±0.37	36±0.31	48±0.31	��9.5	��4.5	��4.5

[Welding machine switch]KDH-160A Welding machine switch

2026-6-18 10:47:26

KDH-160A welding machine switch

1�� Scope of application

1. The KDH welding machine switch (hereinafter referred to as the switch) is a specialized switch designed for the BX3-500 welding machine. This switch is used for conversion in electrical circuits with AC 50Hz, voltage up to 380V, and current up to 160A.
2. Usage conditions: A. Altitude not exceeding 2000M; B. Surrounding medium temperature not lower than -25 ��, not higher than+40 ��; C. The relative humidity of the air shall not exceed 80%; D. In a medium without explosive hazards, and without gases and conductive dust that can corrode metals and damage insulation; E. A place without severe vibration or impact, as well as rain and snow invasion.

2�� Model and its meaning

3�� Main technical parameters

1. AC 50Hz, voltage up to 380V, insulation resistance 100M ��, withstand voltage 4.5KW;
2. The number of conversion levels is divided into level I and level II;
3. The electrical lifespan of the switch is 10000 cycles.

[Welding machine switch]HZ10D-��/E119 Conversion switch for welding machine

2026-6-18 10:47:17

purpose
The HZ10D - ��/E119 welding machine conversion switch can be used to adjust the current of 100A and below, AC 50Hz or 60Hz, and rated voltage of 380V and below on the welding machine for the transformation of the main circuit and auxiliary electrical appliances of electrical equipment.

HZ10D - ��/E119 electric welding machine conversion switch model and its meaning

Classification

According to the agreement, the free air heating current is divided into
There are three types: 25A, 63A, and 100A

2. Classified by level
There are Class I and Class II

Main technical parameters of HZ10D - ��/E119 welding machine conversion switch

Model		HZ10D-25/E119		HZ10D-63/E119		HZ10D-100/E119		HZ10D-100/E119A
Agreed heating current lth	A	twenty-five		sixty-three		one hundred		one hundred
Rated working voltage Ue	V	two hundred and forty	four hundred and forty	two hundred and forty	four hundred and forty	two hundred and forty	four hundred and forty	two hundred and forty	four hundred and forty
Rated working current le	A	twenty-five	twenty-five	sixty-three	sixty-three	one hundred	one hundred	one hundred	one hundred

Mechanical and electrical lifespan
Mechanical lifespan: 0.01 × 106 cycles.
Electric lifespan: 0.01 × 106 cycles.

External dimensions and installation dimensions

Model	Dimensions (mm)
Model	A	B	C	D	H	S
HZ10D-25/E119	one hundred	ninety	ninety	��8	one hundred and forty	six
HZ10D-63/E119	one hundred and forty-two	one hundred and twenty-eight	one hundred and ten	��9	one hundred and sixty-five	seven
HZ10D-100/E119	one hundred and forty-two	one hundred and twenty-eight	one hundred and twenty-eight	��9	two hundred and ten	seven
HZ10D-100/E119A	one hundred and forty-two	one hundred and twenty-eight	one hundred and twenty-eight	��9	one hundred and eighty-eight	seven

wiring diagram

HZ10D - ��/E119 wiring diagram

HZ10D-100/E119A wiring diagram

[Welding machine switch]KDH series welding machine switch

2026-6-18 10:47:09

purpose
The conversion switch for KDH series welding machines is mainly used to control the conversion of BX3 series welding machines, change the number of turns or connection of the coil, divide the coil into stages, and thus expand the range of current regulation. It can also be used for other arc welding machines that use dynamic coil transformers.

Product model and its meaning

Classification of KDH series welding machine switches

According to the agreement, the free air heating current is divided into
There are three types: 125A, 160A, and 200A

Divided by conversion level
There are Class I and Class II

Main technical parameters

Model parameters		KDH-125	KDH-160	KDH-200
Agreed heating current	A	one hundred and twenty-five	one hundred and sixty	two hundred
Number of empty operation cycles		10,000
Operating frequency times/h		one hundred and twenty

External dimensions and installation dimensions

Model	Size (mm)
Model	A	B	C	H	D
KDH-125	one hundred and forty-two	one hundred and twelve	one hundred and twenty	one hundred and seventy	��9
KDH-160	one hundred and fifty-five	one hundred and forty-two	one hundred and forty-two	one hundred and ninety	��9
KDH-200	one hundred and fifty-five	one hundred and forty-two	one hundred and forty-two	one hundred and ninety-four	��9

wiring diagram
KDH-125 wiring diagram

KDH-160�� 200 wiring diagram

[CAM switch]SY821-1 Conversion switch (for thermocouple detection)

2026-6-18 10:21:28

The SY821 type conversion switch is a specialized switch for verifying thermocouples. There are seven pairs of terminal posts and two conversion switches on the panel. With the help of a standard thermocouple and a DC potentiometer, five thermocouples can be verified at once. This switch can also be used as a power reversing switch.

SY821-1 and SY821-2 can respectively connect 11 and 14 thermocouples under test.
Switch contact potential �� 0.1 �� V
Allow maximum current of 0.5A
Resistance between input and output terminals (including lead resistance and switch contact resistance) �� 500m ��
Dimensions: 260 × 190 × 130 (mm) Weight: Approximately 2kg

[CAM switch]SY822 Conversion switch (for thermistor)

2026-6-18 10:21:19

The SY822 type transfer switch is a specialized switch for verifying thermal resistors, which is used in conjunction with a DC potentiometer or measuring bridge. It can connect five thermal resistors at a time, and each one is measured using a four terminal connection method. Switches can also be used for current commutation in electrical measurements.

Contact resistance: �� 0.002 ��
Contact resistance variation: �� 0.0002 ��
Maximum current: 0.5A

[CAM switch]LWZ series DC conversion switch

2026-6-18 10:21:11

With the rapid development of China's power industry, the ability of conversion switches to connect and disconnect DC circuit loads is also increasing. The breaking and connecting DC load capacity of traditional transfer switches can only be within a few hundred milliamps. The LWZ series DC conversion switch can disconnect 2A DC electromagnets, with a maximum breaking capacity of 4A. This product is a new product derived from the LWZ2 conversion switch, and its external dimensions and installation dimensions are the same as the LWZ2, with improved functionality.
1�� Purpose:
The LWZ series conversion switch is mainly used for connecting, disconnecting, and converting circuits in circuits with rated voltage up to DC 220V and below. It can also directly control small capacity motors and perform master command control.
2�� Structural form
Same as LWZ2 conversion switch.

[CAM switch]LWZ2 series conversion switch

2026-6-18 10:21:02

The LWZ2 series universal transfer switch is a new generation product developed by our company in 2000. It has the advantages of small size, compact structure, complete functions, flexible and reliable operation, and beautiful appearance. The structural design and material selection of this product are significantly different from traditional switches, and it has high technical content, comparable to advanced blue series switches abroad. It has a positive significance for improving the reliability and product grade of complete equipment. Before selecting, please read the model and feature description in detail to distinguish between the positioning type and the self replicating type. Choose a DC switch and add DC220V after the model. This series of switches is interchangeable with the CA10 series.
1�� Purpose:
The LWZ2 series transfer switch is mainly used for connecting, disconnecting, and converting circuits in AC 50HZ, rated voltage up to 380V and below, and DC rated voltage up to 220V and below. It can also directly control small capacity motors and master command control.
2�� Structural type
1. Operation mode: There are positioning type, self resetting type, positioning self resetting type, hidden lock type (AS1, AS2), etc. The AS1 hidden lock key is located at the center of the panel, and the key is directly used as the handle. The AS2 hidden lock key is located 40mm below the center of the panel, and the handle can be locked at any position;
2. Operating angles: There are 30 °, 45 °, 60 °, and 90 °, with a general self resetting angle of 30 ° and positioning angles of 45 ° and 60 °;
3. Number of switch sections: There are 1-12 sections (usually 1-3 sections for self resetting type), and each section has two pairs of double break contacts.
3�� Installation and usage conditions
1. The ambient air temperature shall not exceed+40 ��, and the average temperature within 24 hours shall not exceed+35 ��;
2. The lower limit of ambient air temperature shall not exceed -5 ��;
3. The altitude of the installation site shall not exceed 2000m;
4. When the maximum temperature is+40 ��, the relative humidity of the air should not exceed 50%. Higher relative humidity is allowed at lower temperatures, and special measures should be taken for occasional condensation caused by temperature changes;
5. The switch is installed in an environment with pollution level 3;
6. The switch should be installed in an environment that is resistant to rain, wind, and sand.

[CAM switch]SZW16A-4A Universal transfer switch

2026-6-18 10:20:54

SZW16A-4A universal transfer switch

[CAM switch]SZW18A-7/2 Universal transfer switch

2026-6-18 10:20:45

The SZW18A series combination switch is mainly used in electrical circuits with AC 50Hz, rated working voltage of 380V and below, DC voltage of 240V and below, and rated current up to 25A
Used for manual infrequent connection or disconnection of circuits for control and conversion, as well as direct control of small capacity AC motors and for main command control and circuit measurement.

Technical Parameters

Product Model Type		SZW18A
Rated insulation voltage Ui (V)		three hundred and eighty
Rated thermal current lth (A)		sixteen
Operating voltage Ue (V)		three hundred and eighty
Operating current Le (A)		fifteen
P(KW)		five point five
AC-16A operation cycle number AC-16A Operation cycles	On loa	5 1×1 04
	No load Total Total	9×1 04 60×1 04
Electric life (times)
Operation frequency (cycles/n)		one hundred and twenty

SZW18A-7/2 universal transfer switch

[CAM switch]SZW26-20/2GS-x Universal transfer switch

2026-6-18 10:20:37

SZW26-20/2GS-x universal transfer switch

[CAM switch]SZW80-2GS Universal transfer switch

2026-6-18 10:20:28

SZW80-2GS universal transfer switch

[CAM switch]CS-68-V Universal transfer switch

2026-6-18 10:20:19

CS-68-V universal transfer switch

[CAM switch]LW4-2 Universal transfer switch

2026-6-18 10:20:11

LW4-2 universal conversion switch

[CAM switch]LB3 Universal transfer switch

2026-6-18 10:20:03

LB3 universal conversion switch

[CAM switch]LW2-Z1a.46a.40.20/F8 Universal transfer switch

2026-6-18 10:19:54

LW2-Z1a.46a.40.20/F8 universal transfer switch

[CAM switch]LW2-1 Universal transfer switch

2026-6-18 10:19:46

LW2-1 universal conversion switch

[CAM switch]LW4-3/F3055 Universal transfer switch

2026-6-18 10:19:37

LW4-3/F3055 universal transfer switch

[CAM switch]LW5D-16/YH3.3BF Universal transfer switch

2026-6-18 10:19:29

LW5D-16/YH3.3BF universal transfer switch

[CAM switch]LW5D-16/D0724.3 Universal transfer switch

2026-6-18 10:19:21

LW5D-16/D0724.3 Universal Transfer Switch

[CAM switch]LW5D-16/TM707.7 Universal transfer switch

2026-6-18 10:19:12

LW5D-16/TM707.7 universal transfer switch

[CAM switch]LW5D-16/TM708.8 Universal transfer switch

2026-6-18 10:19:04

LW5D-16/TM708.8 universal transfer switch

[CAM switch]LW5D-16/5.5SN.6 Universal transfer switch

2026-6-18 10:18:55

LW5D-16/5.5SN.6 universal transfer switch

[CAM switch]LW5D-16/YH2.2 Universal transfer switch

2026-6-18 10:18:47

LW5D-16/YH2.2 universal transfer switch

[CAM switch]LW5D-40/5.5S/4 Universal transfer switch

2026-6-18 10:18:39

LW5D-40/5.5S/4 universal transfer switch

[CAM switch]LW5D-16/TM705.5 Universal transfer switch

2026-6-18 10:18:30

LW5D-16/TM705.5 Universal Transfer Switch

[CAM switch]LW5D-16/TM706.6 Universal transfer switch

2026-6-18 10:18:22

LW5D-16/TM706.6 Universal Transfer Switch

[CAM switch]LW12-16/1GS Universal transfer switch

2026-6-18 10:18:13

LW12-16/1GS universal transfer switch

[CAM switch]LW12-16XZDH04/3N Universal transfer switch

2026-6-18 10:18:05

LW12-16XZDH04/3N universal transfer switch

[CAM switch]LW12-16/49.6780.3 Universal transfer switch

2026-6-18 10:17:57

LW12-16/49.6780.3 universal transfer switch

[CAM switch]LW12-16/4.0723.3S Universal transfer switch

2026-6-18 10:17:48

LW12-16/4.0723.3S universal transfer switch

[CAM switch]LW12-16/49.4021.3 Universal transfer switch

2026-6-18 10:17:40

LW12-16/49.4021.3 Universal Transfer Switch

[CAM switch]LW12-16/YH3.3 Universal transfer switch

2026-6-18 10:17:32

LW12-16/YH3.3 universal transfer switch

[CAM switch]LW15-16/I6560.5 Universal transfer switch

2026-6-18 10:17:23

LW15-16/I6560.5 universal transfer switch

[CAM switch]LW15-16/LH3.3 Universal transfer switch

2026-6-18 10:17:15

LW15-16/LH3.3 universal transfer switch

[CAM switch]LW6D-3C Universal transfer switch

2026-6-18 10:17:06

LW6D-3C universal conversion switch

[CAM switch]LW8D-20/4.5.5S Universal transfer switch

2026-6-18 10:16:58

LW8D-20/4.5.5S universal transfer switch

[CAM switch]LW8D-10/B404.4 Universal transfer switch

2026-6-18 10:16:50

LW8D-10/B404.4 Universal Transfer Switch

[CAM switch]LW8-10/1Y Universal transfer switch

2026-6-18 10:16:41

LW8-10/1Y universal conversion switch

[CAM switch]LW8D-19/YH3.3 Universal transfer switch

2026-6-18 10:16:33

LW8D-19/YH3.3 universal transfer switch

[CAM switch]LW6DY-1/D023 Universal transfer switch

2026-6-18 10:16:25

LW6DY-1/D023 universal transfer switch

[CAM switch]LW26D-20/GS/04-2 Universal transfer switch

2026-6-18 10:16:16

LW26D-20/GS/04-2 Universal Transfer Switch

[CAM switch]HZ5D-40/7.5/L03 Universal transfer switch

2026-6-18 10:16:08

HZ5D-40/7.5/L03 universal transfer switch

[CAM switch]LW2D-55/F4-X Universal transfer switch

2026-6-18 10:15:59

LW2D-55/F4-X universal conversion switch

[CAM switch]LW5D-16/2 Universal transfer switch

2026-6-18 10:15:51

LW5D-16/2 universal transfer switch

[CAM switch]LW6D-1A/028 Universal transfer switch

2026-6-18 10:15:43

LW6D-1A/028 universal transfer switch

[CAM switch]LW5D-16/C5391/2 Universal transfer switch

2026-6-18 10:15:34

LW5D-16/C5391/2 universal transfer switch

[CAM switch]LW15-16/1 Universal transfer switch

2026-6-18 10:15:26

LW15-16/1 universal transfer switch

[CAM switch]LW8D-20/55S1/4 Universal transfer switch

2026-6-18 10:15:18

LW8D-20/55S1/4 universal transfer switch

[CAM switch]LW5D-16/B/1 Universal transfer switch

2026-6-18 10:15:09

LW5D-16/B/1 universal transfer switch

[CAM switch]LW4-20/4 Universal transfer switch

2026-6-18 10:15:01

LW4-20/4 universal conversion switch

[CAM switch]LW4-20/3 Universal transfer switch

2026-6-18 10:14:52

LW4-20/3 universal conversion switch

[CAM switch]T-16EXF64D-4/D4503 Universal transfer switch

2026-6-18 10:14:44

T-16EXF64D-4/D4503 Universal Transfer Switch

[CAM switch]LW37B-20/YH3/3 Universal transfer switch

2026-6-18 10:14:36

LW37B-20/YH3/3 universal transfer switch

[CAM switch]LW39B-20/YH2/3 Universal transfer switch

2026-6-18 10:14:27

LW39B-20/YH2/3 universal transfer switch

[CAM switch]LW37D-20/2 Universal transfer switch

2026-6-18 10:14:19

LW37D-20/2 universal transfer switch

[CAM switch]LW39A-16D202/2 Universal transfer switch

2026-6-18 10:14:11

LW39A-16D202/2 universal transfer switch

[CAM switch]T-16EXF64D-6/D6075 Universal transfer switch

2026-6-18 10:14:02

T-16EXF64D-6/D6075 Universal Transfer Switch

[CAM switch]LW21-16/D49.4021.3 Universal transfer switch

2026-6-18 10:13:54

LW21-16/D49.4021.3 Universal Transfer Switch

[CAM switch]LW12D-16/D/49.6780.5 Universal transfer switch

2026-6-18 10:13:45

LW12D-16/D/49.6780.5 universal transfer switch

[CAM switch]LW12D-16/YH3/3 Universal transfer switch

2026-6-18 10:13:37

LW12D-16/YH3/3 universal transfer switch

[CAM switch]LW12D-16/3 Universal transfer switch

2026-6-18 10:13:29

LW12D-16/3 universal transfer switch

[CAM switch]LW37D-20/3 Universal transfer switch

2026-6-18 10:13:20

LW37D-20/3 universal transfer switch

[CAM switch]LW37D-20/YH2/3 Universal transfer switch

2026-6-18 10:13:12

LW37D-20/YH2/3 universal transfer switch

[CAM switch]LW5D-16/TM706/6 Universal transfer switch

2026-6-18 10:13:04

LW5D-16/TM706/6 universal transfer switch

[CAM switch]LW5D-16-YH3/3 Universal transfer switch

2026-6-18 10:12:55

LW5D-16-YH3/3 universal transfer switch

[CAM switch]LW6D-2/B006 Universal transfer switch

2026-6-18 10:12:47

LW6D-2/B006 Universal Transfer Switch

[CAM switch]KAM-CA2 Current Switching Switch

2026-6-18 10:12:39

KAM/KAH cam switches can be combined into thousands of specifications by increasing or decreasing the number of contact layers, changing the action angle and gear number, setting reset and non reset functions. They can be customized according to requirements in terms of contact form, operating handle style and color, and logo character printing. They are widely used as universal conversion switches, main control switches, startup switches, and other versatile applications.
Adopting polar modular contact units, divided into two specifications of 10A/30A according to load capacity, each unit module is equipped with 2NO contacts. The structure is a bridge double disconnect type with self-cleaning and mechanical forced disconnection functions, with a large opening distance and excellent arc resistance performance. Therefore, this series has high reliability and long electrical life.
Add 24K gold electroplating to the existing standard products to ensure that the contacts are not oxidized or corroded under low operating frequency and harsh use environments, reduce contact resistance, improve and stabilize contact performance.
In the power transmission and distribution system, it has a wide and flexible application as a distribution cabinet opening and closing control, voltage and current conversion switch, motor forward and reverse control, star delta starting, etc.

Characteristics of KAM-CA2 Current Switching Switch
Contact electroplating with 24K gold ensures high reliability in connection and disconnection performance.
Circuit forms, various styles of handles, and colors can be customized according to requirements.
Install anti touch protective covers and sign boards at the product wiring locations.
Self cleaning and mechanical forced disconnection structure, large opening distance, arc resistance, high reliability.
Obtained CE and KE certifications.

[CAM switch]LW42 series cam conversion switch

2026-6-18 10:12:30

purpose
The LW42 series cam switch is suitable for control, lighting, protection, signal and program selection, voltage and current measurement selection in electrical control circuits of CNC programmable machine tools and electrical equipment with AC 50Hz, voltage up to 690V and below, or DC voltage up to 440V and below. It can also be used for controlling small capacity squirrel cage asynchronous motors.

Structural characteristics of LW42 series cam conversion switch

The positioning angle of the 10A cam switch is 45 ° and 90 °. Up to eight operating workstations. The switch has 1-6 layers.
The positioning angles of the 20A cam switch are 30 °, 45 °, and 90 °. Up to 12 operating stations, with 1-12 layers of switches
Each layer has two pairs of contacts.
The product can meet the requirements of different forms of contact opening and closing through various cam combinations.
Concealed wiring: refers to safe contact.
The terminal is equipped with anti drop screws.
Contact material: Silver alloy.
The shell is made of reinforced flame-retardant nylon 66, with flame retardancy reaching V ° level.

Note:
10A small selection switch (LW42A1) with positioning angles of 45 ° and 90 °. Up to eight operating workstations. The switch has 1-6 layers.
The 10A small selection switch (LW42A1) can only provide center installation and has no other installation forms to choose from. It does not have door interlock function and is not equipped
Functions inside the electrical cabinet.
The 20A selection switch has positioning angles of 30 °, 45 °, and 90 °. Up to 12 operating workstations. The switch has 1-12 layers, each with two pairs of contacts.
The 20A selector switch (LW42A2) is used for packaging with a maximum of 3 layers of contacts.
The 25A selector switch (LW42A25) has positioning angles of 30 °, 45 °, and 90 °. Up to 12 operating workstations. The switch has 1-12 layers, each with two pairs of contacts.
The 25A selector switch (LW42A25) is used for packaging with a maximum of 2 layers of contacts.
The door interlock function switch provides a conversion angle of only 0 ° -90 °.
Door interlock switch, standard configuration with 1 extension rod and 1 extension rod protective cover, users can add them as needed.
Door interlock switch, standard configuration with grounding terminal.
The bottom of the switch installed on the guide rail is equipped with reinforced screw holes, and users can drill additional holes and reinforce them with screws (screws are standard).
The installation of the guide rail is matched with an H-shaped guide rail specification.

[CAM switch]GSH1 series conversion switch

2026-6-18 10:12:21

GSH1 series conversion switch

The GSH1 series transfer switch is suitable for electrical circuits with AC 50Hz, rated voltage 690V, rated working voltage 220V, rated working current 40A and 63A under the AC-21A usage category, for manual frequent connection, analysis and conversion of AC resistance load circuits. In the AC-3 usage category, in circuits with a rated operating voltage of 380V and rated operating currents of 25A and 40A, three-phase squirrel cage induction motors can be directly started and disconnected during operation.

Normal working conditions and installation conditions
The upper limit of the surrounding air temperature shall not exceed+40 ��, the 24-hour average shall not exceed+35 ��, and the lower limit shall not be lower than -5 ��.
The relative humidity of the atmosphere shall not exceed 50% when the maximum temperature around is+40 ��, and higher humidity is allowed at lower temperatures
The average maximum relative humidity of the wettest month is 90%. At the same time, the monthly average minimum temperature for the month shall not exceed+25 ��, and measures must be taken to prevent condensation on the surface of the product due to temperature changes.
Installation location with an altitude not exceeding 2000m
The pollution level is level 3.
The installation method is installed behind the board.
Installation categories are II and III.

Main performance indicators
rated voltage
The rated insulation voltage Ui is 690V
The rated working voltage Ue is AC50Hz, 220V, 380V.
Rated working system
a) Eight hour work schedule
b) Uninterrupted work system
c) Continue the cycle work system (load factor of 40%, operating frequency of 600 times/hour).
contact resistance
40A contact resistance not exceeding 2m ��;
The contact resistance of 63A contact shall not exceed 1m ��.

dielectric properties
The insulation of the transfer switch should be able to withstand a power frequency withstand voltage test of 3000V for 1 minute, and the leakage current should not exceed 50mA.
Action performance
The operating mechanism should operate flexibly and reliably, with accurate positioning angles. The mechanism should ensure that the contacts can only be placed in the closed or open position.
The sequence of actions meets the requirements of the circuit diagram.
Rated connection and segmentation capability

structural type
This product adopts a combination structure, consisting of positioning, limiting, contact series, panel, and handle. The contact system is a bridge type double break point structure, and its on/off is controlled by its respective cam. The positioning system adopts a ratchet and pawl structure. By replacing different positioning ratchet gears and matching them with corresponding cams, the switch can obtain different rotation angles to achieve the corresponding switch states.

Precautions for use
When the switch knob is turned to a fixed position, do not continue to rotate the knob forcefully to prevent damage to the mechanism;
When wiring, it is necessary to strictly follow the instructions in the user manual.

Ordering Instructions
When placing an order, the model and specifications of the required conversion switch should be correctly stated. If the standard circuit diagram cannot meet the requirements, please fill in the opening and closing diagram according to the following requirements. Products with special requirements can be negotiated with the manufacturer.
Fill in the opening and closing diagram according to the route and indicate:
Fill in the opening and closing diagram according to the route. The illustration is only an example, and users should fill in according to their actual use.
Indicate the wiring of the terminal block.
Explanation of switch angle: such as 45 degrees.
Fill in the indicator symbols on the panel.
Explain the position of the positioning block.

[CAM switch]LW4 series universal transfer switch

2026-6-18 10:12:13

Purpose:
The LW4 series universal conversion control switch is suitable for converting electrical control circuits and measuring instruments in circuits with AC 50Hz, voltage up to 500V, and DC voltage up to 440V. It can also directly control small capacity motors.

Model meaning:

Main technical parameters of LW4 series universal transfer switch:

Classified by operation mode and handle position combination:

Appearance and installation dimensions:

Ordering Notice:
1. Users should generally order according to our factory's operation diagram. If they cannot meet the requirements, they can attach a request for ordering.
2. When placing an order, the full model, quantity, delivery time and location, unit, and recipient should be clearly stated.

[CAM switch]LWX1,LW1B,LWX2 series universal transfer switch

2026-6-18 10:12:04

purpose

LWX1, LW1B, and LWX2 universal transfer switches are suitable for electrical equipment, used for remote control of various distribution equipment, and can also be used for conversion of various instruments, servos, and micro motors.

Product model and its meaning

Positioning type code: 8 represents 45o positioning
Panel form: F-shaped, Y-shaped

LWX1, LW1B, LWX2 series universal transfer switch classification

1. Classified by structural form
Handle non removable positioning type, handle removable positioning type (indicated by "H")
Self replication (represented by "W"), localization self replication (represented by "Z")

Divided by operating angle
There are 30 ° and 90 °

Main technical parameters of LWX1, LW1B, LWX2 series universal transfer switches

Model		LWX1	LWX1B	LWX2
Agreed heating current lth	A	five	five	five
Rated working voltage Ue	V	two hundred and twenty	two hundred and twenty	two hundred and twenty
Rated working current le
AC-15	A	zero point five	zero point five	zero point five
AC-13	A	zero point two four	zero point two four	zero point two four

Mechanical and electrical lifespan
Mechanical lifespan: 0.1 × 106 times, self replication is 0.05 × 106 times, operating frequency is 120 times/hour.
Electric lifespan: 0.03 × 106 at AC-15, operating frequency of 120 times/hour.
At DC-13, the frequency is 0.01 × 106 times and the operating frequency is 120 times/hour

Overall dimensions

LWX1 switch

LWX1B switch

LWX2 switch

Note: n is the number of contact system sections

installation dimensions

LWX1, LW1B, LWX2 series universal transfer switch

[CAM switch]LW8D series universal transfer switch

2026-6-18 10:11:56

purpose
The LW8D universal transfer switch is suitable for converting electrical control circuits and measuring instruments in circuits, and can also directly control electric motors.

LW8D series universal transfer switch model and its meaning
The model and meaning of the conversion switch used for master control

Special code: TH stands for Damp Heat Products
Panel shape: Square is not represented, Y represents circle

The model and meaning of the conversion switch used for direct control of electric motors

Usage code: Q-direct start, N-reversible conversion
S-dual speed electric motor variable speed

Main technical parameters of LW8D series universal transfer switch

Model		LW8D-10			LW8D-20
Agreed heating current lth	A	ten			twenty
Rated working voltage Ue	V	two hundred and forty	two hundred and fifty	three hundred and eighty	two hundred and forty	two hundred and fifty	three hundred and eighty
Rated working current le
AC-15	A	one point six zero		zero point nine five	four point six zero		two point six zero
AC-3	A			five			twelve
DC-13	A		zero point one four			zero point two seven

Mechanical and electrical lifespan
Mechanical lifespan: 0.3 × 106 cycles, operating frequency of 120 cycles per hour.
Electric lifespan: 0.1 × 106 times at AC-15, operating frequency of 300 times/hour.
At DC-13, the frequency is 0.1 × 106 times and the operating frequency is 300 times/hour.

External dimensions and installation dimensions
Square panel external dimensions

Outline dimensions of circular panel

Model	L(mm)
Model	Square panel	Circular panel
LW8D-10	22+10n	13+10n
LW8D-20	22+13n	35+13n

installation dimensions

[CAM switch]LW6D series universal transfer switch

2026-6-18 10:11:48

purpose
LW6D universal transfer switch is suitable for machine tool control circuits, realizing the control and conversion of various circuits, and can also be used for the conversion of control circuits in other occasions

Product model and its meaning

Classification
1. Divided by contact seat

model	Number of contact sockets	Number of contact pairs	arrangement form
LW6D-1	one	three	single column
LW6D-2	two	six
LW6D-3	three	nine
LW6D-4	four	twelve
LW6D-5	five	fifteen
LW6D-6	six	eighteen
LW6D-8	eight	twenty-four
LW6D-10	ten	thirty

2. Classified by location feature code

Operation mode code

Operator position

0°

30°

0°

30°

0°

30°

60°

30°

0°

30°

60°

30°

0°

30°

60°

90°

60°

30°

0°

30°

60°

90°

60°

30°

0°

30°

60°

90°

120°

90°

60°

30°

0°

30°

60°

90°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

210°

240°

270°

300°

330°

0°

30°

60°

90°

120°

150°

180°

Main technical parameters

Agreed heating current lth	A	five
Rated working voltage Ue	V	two hundred and forty	two hundred and fifty	three hundred and eighty
Rated working current le
AC-15	A	one point five zero		zero point nine five
DC-13	A		zero point five five

Mechanical and electrical lifespan
Mechanical lifespan: 0.3 × 106 cycles, operating frequency of 120 cycles per hour.
Electric lifespan: 0.1 × 106 at AC-15, operating frequency of 300 times/hour.
At DC-13, the frequency is 0.1 × 106 times and the operating frequency is 300 times/hour.

Overall dimensions

Note: refers to the number of contact system sections.

Installation dimensions of LW6D series universal transfer switch

You can choose one to install

LW6D series universal conversion switch

[CAM switch]LW2D series universal transfer switch

2026-6-18 10:11:39

purpose
LW2D universal transfer switch is suitable for converting various control circuits in circuits, as well as for converting various electrical measuring instruments and servo motors

Product model and its meaning

Limit device: X represents limited signal device, infinite signal device positioning does not represent
Positioning angle: 8 indicates 45 ° positioning, 90 ° positioning does not indicate
Knob type: 1 with indicator light type, 4 positioning type, 6 self resetting type, 7 key type, 8 positioning self resetting type
Panel type: F represents square, O represents circular
Contact type: Regarding types 1, 1a, 2, 4, 5, 6, 6a, 7, 8, 10, 20, and 40, they can be combined arbitrarily
Structural type: positioning type not indicated, W self replicating type, Z positioning self replicating type, Y handle with indicator light positioning type,
YZ handle with indicator light for self resetting positioning, H handle with removable key for positioning
Classification
1. Divided by operation method
1) Positioning type
2) Self replication
3) Positioning self replication

Divided by contact system
1) There are 1-8 sections, a total of 8 types

Divided by operating angle
1) There are two types: 45o and 90o

Main technical parameters of LW2D series universal transfer switch

Agreed heating current lth	A	ten
Rated working voltage Ue	V	two hundred and forty	two hundred and fifty
Rated working current le
AC-15 double breakpoint	A	two
AC-15 single breakpoint	A	one
DC-13 double breakpoint	A		one point one
DC-13 single breakpoint	A		zero point five

Mechanical and electrical lifespan
Mechanical lifespan: 0.03 × 106 cycles, operating frequency of 120 cycles per hour.
Electric lifespan: 0.01 × 106 times at AC-15, operating frequency of 300 times/hour.
At DC-13, the frequency is 0.01 × 106 times and the operating frequency is 300 times/hour.

External dimensions and installation dimensions
Overall dimensions

Self replication: Lmax=130+18n (n is the number of contact system nodes)
Other types: lmax=141+18n (n is the number of contact system nodes)

installation dimensions

[CAM switch]LW31 series universal transfer switch

2026-6-18 10:11:31

purpose
The LW31 series universal transfer switch is mainly used for load starting and variable speed steering of complete electrical switchgear or three-phase asynchronous motors, as well as for switching between main and auxiliary circuits, and can fully replace other transfer switches.

Product model and its meaning

Main technical parameters

Model

lth

AC-21A

AC-22A

AC-23A

AC-2

AC-3

AC-4

AC-15

DC-13

LW31-20

twenty

four hundred and forty

twenty

fifteen

seven point five

fifteen

seven point five

eleven

five point five

three point five

one point five

four

two hundred and forty

five

one

one hundred and twenty

five

LW31-25

twenty-five

four hundred and forty

twenty-five

twenty-two

eleven

twenty-two

eleven

fifteen

seven point five

six point five

three

five

two hundred and forty

eight

one hundred and twenty

nine

LW25-32

thirty-two

four hundred and forty

thirty-two

thirty

fifteen

thirty

fifteen

twenty-two

eleven

five point five

six

two hundred and forty

fourteen

eleven

one hundred and twenty

twenty-five

LW31-50

fifty

four hundred and forty

fifty

forty

twenty-two

eighteen point five

seven point five

two hundred and forty

eleven

one hundred and twenty

LW31-75

seventy-five

four hundred and forty

seventy-five

seventy-two

forty-five

seventy-two

forty-five

forty-seven

twenty-four

twenty-three

eleven point five

two hundred and forty

one hundred and twenty

sixty

Number of operation cycles

no-load

eight thousand and five hundred

On load

one thousand and five hundred

total

ten thousand

Mechanical and electrical lifespan
Mechanical lifespan: 0.1 × 106 cycles, operating frequency of 120 cycles per hour.
Electrical lifespan: 0.03 × 106 cycles.

External dimensions and installation dimensions

Model	Section A				Dimensions (mm)
Model	one	two	three	four	��B	��C	D	E	F	G
LW31-20	thirty-seven	fifty	sixty-two	seventy-five	fifty-four	thirty-six	��44	twenty-eight	eight	��4.5
LW31-25	thirty-seven	fifty	sixty-two	seventy-five	seventy-two	fifty-eight	��59	thirty-two	nine	��4.5
LW31-32	thirty-five	forty-eight	sixty	seventy-three	seventy-two	fifty-eight	��59	thirty-two	nine	��4.5
LW31-50	forty	fifty-eight	seventy-five	ninety-three	one hundred and five	seventy-two	��80	forty-two	ten	��5.5
LW31-75	fifty-one	sixty-nine	eighty-seven	one hundred and five	one hundred and five	seventy-two	��80	forty-two	ten	��5.5

Model	Dimensions (mm)
Model	S	T	Z	A	B	C
LW31-20	��9.5	thirty-two	��3.2	thirty-six	forty-five	M4
LW31-25	��9.5	thirty-three	��3.2	fifty-eight	sixty-four	M4
LW31-32	��9.5	thirty-three	��3.2	fifty-eight	sixty-four	M4
LW31-50	��13	forty-six	��5.3	eighty-five	ninety	M5
LW31-75	��13	forty-six	��5.3	eighty-five	ninety	M5

LW31 series universal conversion switch

[CAM switch]LW26D Universal transfer switch

2026-6-18 10:11:22

The LW26D universal transfer switch is suitable for machine tool control circuits, realizing the control and conversion of various circuits, and can also be used for the conversion of control circuits in other occasions. The switch has a finger protection function, which improves safety.

Main technical parameters of LW26D universal transfer switch

Agreed heating current lth	A	ten
Rated working voltage Ue	V	two hundred and forty	three hundred and eighty
Rated working current le			one point five
AC-15	A	two point five
AC-13	A	zero point two seven

Location feature code

Operator position

0°

30°

0°

30°

0°

30°

60°

30°

0°

30°

60°

30°

0°

30°

60°

90°

60°

30°

0°

30°

60°

90°

60°

30°

0°

30°

60°

90°

120°

90°

60°

30°

0°

30°

60°

90°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

210°

240°

270°

300°

30°

0°

30°

60°

90°

120°

150°

180°

Overall dimensions

installation dimensions
You can choose one to install

LW26D universal conversion switch

[CAM switch]LW26S series concealed lock power cut-off switch

2026-6-18 10:11:14

purpose
The LW26S series concealed lock power cut-off switch is a derivative product of the LW26 series universal transfer switch. The concealed lock type power cut-off switch is mainly used as a power cut-off switch in machine tools that needs to be self locked. It can lock itself in the disconnected position (i.e. "0" position) to prevent illegal operations.

The product complies with the standards GB 14048.3 and IEC 60947-3

Main technical parameters of LW26S series concealed lock power cut-off switch

Model		LW26S-20	LW26S-25	LW26S-32
Rated working voltage Ue	V	four hundred and forty	four hundred and forty	four hundred and forty
Agreed heating current lth	A	twenty	twenty-five	thirty-two
Rated working current le
AC-21A	A	twenty	twenty-five	thirty-two
AC-22A	A	twenty	twenty-five	thirty-two
AC-23A	A	fifteen	twenty-two	thirty
Rated control power P
AC-23A	KW	seven point five	eleven	fifteen

External dimensions and installation dimensions
LW26S A-type switch

Model	Dimensions (mm)
Model	A��L
LW26S-20	43 76.5
LW26S-25	45.2 83

LW26S-B type switch

Model

Dimensions (mm)

Installation size (mm)

LW26S-20

forty-eight

eighty-four

twenty-four

forty-three

fifty-one point five

thirty-two point five

1-4

thirty-six

forty

��8.5

��20

LW26S-25

forty-eight

eighty-four

twenty-four

forty-five point two

fifty-eight

thirty-two point five

1-4

thirty-six

forty

��8.5

��20

LW26S-32

sixty-four

one hundred and twelve

thirty-two

fifty-eight

eighty-five

thirty-four

1-6

forty-eight

��10

��34

LW26S series concealed lock power cut-off switch

[CAM switch]LW26GS series padlock type power cut-off switch

2026-6-18 10:11:06

purpose
The LW26GS series padlock type power cut-off switch is a derivative product of the LW26 series universal transfer switch. It is mainly used as a power cut-off switch in machine tools that can be locked with a padlock. It can be locked with a padlock in the off position (i.e. "0" or "OFF" position) and the on position (i.e. "1" or "ON" position) to prevent misoperation and control the operation of unauthorized personnel. The product complies with the national standard GB 14048.3 and the international standard IEC 60947-3.

Classification
1) The padlock type switch is divided into four current levels according to specifications: 20A, 25A, 32A, and 63A.
-In the Type 1 switch, there are two types of panels for 20A: large and small. The rest of the specifications are large panels. The large panel switch can use 3 padlocks, while the small panel switch can use 2 padlocks;
-The Type 2 switch is a large panel that can use three padlocks.
2) The padlock type switch is divided into two types according to its purpose: ordinary type and emergency stop type.
The regular model (LW26GS - ��/03) features a black panel and black handle,
The emergency stop type (LW26GS - ��/04) has an emergency stop sign, namely a yellow panel and a red handle.

Product Model
LW26GS - ��/03-1 (regular type)
LW26GS - ��/04-1 (emergency stop type)
LW26GS - ��/03-2 (regular type)
LW26GS - ��/04-2 (emergency stop type)

Main technical parameters of LW26GS series padlock type power cut-off switch

Model		LW26GS-20	LW26GS-25	LW26GS-32	LW26GS-63
Rated working voltage Ue	V	four hundred and forty	four hundred and forty	four hundred and forty	four hundred and forty
Agreed heating current lth	A	twenty	twenty-five	thirty-two	sixty-three
Rated working current le
AC-21A	A	twenty	twenty-five	thirty-two	sixty-three
AC-22A	A	twenty	twenty-five	thirty-two	sixty-three
AC-23A	A	fifteen	twenty-two	thirty	fifty-seven
Rated control power P
AC-23A	KW	seven point five	eleven	fifteen	thirty
Number of operation cycles K
Empty load F		eight thousand and five hundred	eight thousand and five hundred	eight thousand and five hundred	eight thousand and five hundred
Carrying G		one thousand and five hundred	one thousand and five hundred	one thousand and five hundred	one thousand and five hundred
Total number H		ten thousand	ten thousand	ten thousand	ten thousand

External dimensions and installation dimensions
LW26GS-20/�� -1 type small panel switch

LW26GS - ��/�� -1 type large panel switch

LW26GS - ��/�� -2 type switch

Model	Dimensions (mm)
Model	A1	L1	D1	A2	L2	D2
LW26GS-20	forty-three	forty-three	��8.5	forty-three	thirty-seven point five	��45
LW26GS-25	forty-five point two	fifty-one	��8.5	forty-five point two	forty-five	��47
LW26GS-32	fifty-eight	fifty-five	��10
LW26GS-63	sixty-six	seventy-two point five	��10

LW26GS series padlock type power cut-off switch

[CAM switch]LW30 series universal transfer switch

2026-6-18 10:10:57

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LW30-20/3 LW30-32/3 LW30-40/3 LW30-63/3 LW30-80/3 LW30-100/3	E	F	H	J	K	a	d1	d2
	42	64	13.5	54	61	48	20	4.2
	42	64	13.5	54	61	48	20	4.2
	50	64	16	64	67	48	20	4.2
	50	64	16	64	67	48	20	4.2
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LW30-40/3	50	16	64	59	61	70	25
LW30-63/3	50	16	64	59	61	70	25
LW30-80/3	70	22.5	80	65	68	90	25
LW30-100/3	70	22.5	80	65	68	90	25

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LW30-32/3	22	50	32	118
LW30-40/3	22	61	32	118
LW30-63/3	22	61	32	118
LW30-80/3	22	68	32	118
LW30-100/3	22	68	32	118

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LW30-32/3	23	19	85	80	160	150	--	--	4.1
LW30-40/3	29	23	91	91	190	178	--	--	4.1
LW30-63/3	29	23	91	91	190	178	--	--	4.1
LW30-80/3	37.5	23	100	100	250	--	229	124	4.1
LW30-100/3	37.5	23	100	100	250	--	229	124	4.1

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[CAM switch]LW26 series universal transfer switch

2026-6-18 10:10:49

purpose
The LW26 series universal transfer switch can be used as a circuit control switch, testing equipment switch, motor control switch, master control switch, and transfer switch for welding machines.
Compliant with standards GB 14048.3, GB 14048.5, and IEC 60947-3, IEC 60947-5-1.
Among them, LW26-10, LW26-20, and LW26-25 switches have finger protection function.
1) Positioning type; 2) Self replication; 3) Positioning self replication.
The positioning type has 1-12 sections (only 8 sections for 63 A and above), the self replicating type has 1-3 sections, and the direct control motor has 1-6 sections.

Product model and its meaning
The model and meaning of the conversion switch used for master control

Note: The conversion angle codes are 30 ° (3), 45 ° (4), 60 ° (6), 90 ° (9), 30 ° self resetting 60 ° positioning (36), 30 ° self resetting 90 ° positioning (39)

The model and meaning of the conversion switch used for direct control of electric motors

Note 1: Usage code: Q-direct starting N-reversible conversion S-dual speed motor variable speed SN dual speed motor variable speed, reversible.
Note 2: The conversion switch used for direct control of the motor generally adopts a 60 ° conversion, while the SN code uses a 45 ° conversion.

The model and meaning of the conversion switch used in the main circuit

Note: The main circuit usually uses a 60 ° conversion switch.

The combination of operation mode and operation position is as follows:

Main technical parameters

Panel specifications

Note: �� is a standard color �� is an optional color, the same applies below

Handle type

Specifications and Dimensions

Model	Panel specifications	Dimensions (mm)				Installation size (mm)
Model	Panel specifications	A	B	C	L	a	b	d1	d2
LW26-10	M0 square	thirty	thirty	twenty-eight	26.5+12n			��8	��3.2
LW26-20	M1 Square	forty-eight	forty-eight	forty-three	22+9.6n	thirty-six	thirty-six	��8.5	��4.5
LW26-25	M1 rectangle	forty-eight	sixty	forty-three	22+9.6n	thirty-six	thirty-six	��8.5	��4.5
	M2 square	sixty-four	sixty-four	forty-three	25+9.6n	forty-eight	forty-eight	��10	��4.5
	M2 rectangle	sixty-four	eighty	forty-three	25+9.6n	forty-eight	forty-eight	��10	��4.5
	M1 Square	forty-eight	forty-eight	forty-five point two	23+12.8n	thirty-six	thirty-six	��8.5	��4.5
LW26-32	M1 rectangle	forty-eight	sixty	forty-five point two	23+12.8n	thirty-six	thirty-six	��8.5	��4.5
	M2 square	sixty-four	sixty-four	forty-five point two	26.5+12.8n	forty-eight	forty-eight	��10	��4.5
	M2 rectangle	sixty-four	eighty	forty-five point two	26.5+12.8n	forty-eight	forty-eight	��10	��4.5
LW26-63	M2 square	sixty-four	sixty-four	fifty-eight	29.2+12.8n	forty-eight	forty-eight	��10	��4.5
	M2 rectangle	sixty-four	eighty	fifty-eight	29.2+12.8n	forty-eight	forty-eight	��10	��4.5
	M2 square	sixty-four	sixty-four	sixty-six	29.2+21.5n	forty-eight	forty-eight	��10	��4.5
	M2 rectangle	sixty-four	eighty	sixty-six	29.2+21.5n	forty-eight	forty-eight	��10	��4.5
LW26-125	M3 Square	eighty-eight	eighty-eight	sixty-six	29.2+21.5n	sixty-eight	sixty-eight	��10	��4.5
	M3 rectangle	eighty-eight	one hundred and seven	sixty-six	29.2+21.5n	sixty-eight	sixty-eight	��10	��4.5
	M3 Square	eighty-eight	eighty-eight	eighty-four	35+26.5n	sixty-eight	sixty-eight	��13	��6
LW26-160	M3 rectangle	eighty-eight	one hundred and seven	eighty-four	35+26.5n	sixty-eight	sixty-eight	��13	��6
	M3 Square	eighty-eight	eighty-eight	eighty-eight	35+32.5n	sixty-eight	sixty-eight	��13	��6
	M3 rectangle	eighty-eight	one hundred and seven	eighty-eight	35+32.5n	sixty-eight	sixty-eight	��13	��6

Note: n is the number of contact system nodes, the same applies below

LW26-20 single hole installation size

LW26-10 panel installation, single hole installation dimensions

[CAM switch]HT1-16 Universal transfer switch

2026-6-18 10:10:38

The HT1-16 universal transfer switch (hereinafter referred to as the switch) has a specified heating current of 16A and is mainly used for converting electrical control lines (electromagnetic coils, electrical measuring instruments, servo motors, etc.) in circuits with 50Hz, voltage up to 380V, and DC voltage up to 220V. It can also be used for direct control of three-phase cage induction motors with AC 380V, 5.5Kw and below (starting, reversible conversion, and multi speed motor speed change, etc.).

Normal working conditions
1. The ambient air temperature shall not exceed+40 ��, not be lower than -25 ��, and its average value within 24 hours shall not exceed+35 ��.
2. The altitude of the installation location shall not exceed 2000m.
3. The relative humidity of the air at the installation location shall not exceed 50% at a maximum temperature of+40 ��; Higher relative humidity is allowed at lower temperatures, with the average minimum temperature of the wettest month not exceeding+25 �� and the average maximum relative temperature of that month not exceeding 90%. Due to temperature changes causing condensation on the product, measures must be taken.
4. The pollution level is level 3.
5. The installation category is Class III.
6. The switch should be installed according to the user manual provided by the manufacturer.

Main models of HT1-16 universal transfer switch

Usage code	Purpose	Corresponding switch model	remark
Q1	direct start	HT1-16/5.5Q·1	The operation diagram is the same as the LW5 switch
Q2	direct start	HT-16/5.5Q2·3
N	Reversible conversion	HT1-16/5.5N·3
S	Dual speed electric motor variable speed	HT1-16/5.5S·4
SN	Dual speed electric motor, variable speed, reversible	HT1-16/5.5SN·6

Technical data and performance
1. The agreed heating current is 16A.
2. The rated insulation voltage is 500V.
3. Operating frequency: 300 times/h (AC-4 is 120 times/h).
4. The rated working voltage and rated working current under different usage categories are shown in the following table:

Switch purpose	Type of electric current	Usage category	Rated working voltage V	Rated working current A
Used for master control	communication	AC-15	three hundred and eighty	two point six
			two hundred and twenty	four point six
	direct current	DC-13	two hundred and twenty	zero point two seven
Directly control 5.5kw and below Three phase cage induction motor	communication	AC-3	three hundred and eighty	twelve
		AC-4

5. The same breaking capacity of the main control switch is shown in the following table:

Usage category	Connect and disconnect
Usage category	voltage V	current A	cos��	T_{zero point nine five}ms
AC-15	1.1×380	10 × 2.6	zero point three	��
AC-15	1.1×220	10 ×4.6	zero point three	��
DC-13	1.1×220	1.1×0.27	��	three hundred

6. The on/off capability of the switch for directly controlling the 5.5KW three cage induction motor is shown in the following table:

Usage category	connect			Connect and disconnect (on-off)
Usage category	Voltage V	Current A	cos��	Voltage V	Current A	cos ��
AC-4	1.05×380	12×12	zero point four five	1.05×380	10×12	zero point four five

7. The electrical lifespan is 20 × 104 times.
8. The mechanical lifespan is 100 × 104 times.

[CAM switch]LW112(LW12) Universal transfer switch

2026-6-18 10:10:29

The LW112 universal transfer switch is mainly suitable for converting electrical control circuits and electrical measuring instruments in circuits with AC 50HZ, voltage up to 380V and below, and DC voltage up to 220V and below. It can also directly control three-phase AC cage induction motors of 5.5KW and below.

LW112 (LW12) universal transfer switch meets the standard: GB14048.5-93

[CAM switch]LW2B Universal transfer switch

2026-6-18 10:10:20

The LW2 series universal transfer switch is mainly suitable for control or conversion in AC 50Hz, rated working voltage to and DC 220V circuits. It can also be used as a conversion switch for various electrical measuring instruments and servo motors.

LW2B universal transfer switch meets the standard: GB14048.5-93

[CAM switch]LW32 Universal transfer switch

2026-6-18 10:10:12

The LW32 universal transfer switch replaces CA10-20LW26-20 and is mainly used for connecting, disconnecting, and converting circuits in main circuits with AC 50Hz rated voltage of 440V and below, and DC voltage of 240V and below. It can also directly control small capacity motors and master command control.

LW32 universal transfer switch meets the standard: GB14048.3-93 GB14048.5-2001

[CAM switch]LW15-16 Universal transfer switch

2026-6-18 10:10:03

The LW15-16 universal transfer switch is mainly suitable for converting electrical control circuits in circuits with AC 50Hz, current 380V and below, and DC voltage 220V and below. It can also be used for direct control of small capacity three-phase AC cage induction motors (starting, reversible conversion, variable speed).

LW15-16 universal transfer switch meets the standard: GB14048.5-93

[CAM switch]LW5D-16 Universal transfer switch

2026-6-18 10:09:55

LW5D-16 universal transfer switch

1. The agreed heating current is 16A
2. The rated insulation voltage is 500V
3. Allow normal operation frequency of 300 times/h
4. The rated working voltage and rated working current under different usage categories are shown in Table 3
5. The connection and disconnection capabilities are shown in Table 4
6. The electrical lifespan is 20x10 ^ 4 times
7. The mechanical lifespan is 100x10 ^ 4 times
8. Appearance and installation dimensions
8.1 Dimensions: The open type transfer switch is shown in Figure 1 and Table 5, and the protective type transfer switch is shown in Figure 2
8.2 Installation dimensions: Open type positioning type and self resetting type A conversion switch are shown in Figure 3, self resetting type B is shown in Figure 4, and protective type conversion switch is shown in Figure 2

Table 3 LW5D-16 Universal Transfer Switch

Purpose of conversion switch	Usage category		Rated working voltage V	Rated working current V
Used for master control	AC-15		five hundred and fifty	two
			three hundred and eighty	two point six
			two hundred and twenty	four point six
	DC-13	Double breakpoint	four hundred and forty	zero point one four
			two hundred and twenty	zero point two seven
			one hundred and ten	zero point five five
		Four breakpoints	four hundred and forty	zero point two zero
			two hundred and twenty	zero point four one
			one hundred and ten	zero point eight two
Directly control three-phase cage induction motors of 5.5KW and below	AC-3		three hundred and eighty	twelve
	AC-4

Table 4 LW5D-16 Universal Transfer Switch
Purpose of conversion switch	Type of electric current	Usage category		Controllable coil power	Connect and disconnect
					Voltage V	Current A	cos��	T0.95 ms
Used for master control	communication	AC-15		1000VA	1.1x500	1.1x2.0	zero point three	one
					1.1x380	10x2.6
					1.1x220	10x4.6
	direct current	DC-13	Double breakpoint	60W	1.1x440	1.1x0.14	one	three hundred
					1.1x220	1.1x0.27
					1.1x110	1.1x0.55
			Four breakpoints	90W	1.1x440	1.1x0.2	one	three hundred
					1.1x220	1.1x0.41
					1.1x110	1.1x0.82

Directly control 5.5KW three-phase cage induction motor	Connect			Connect and disconnect (on-off)
	Voltage V	Current A	cos��	Voltage V	Current A	cos��
	1.05x380	12x12	zero point four five	1.05x380	10x12	zero point four five

Table 5
Type	L value of each section's conversion switch
Type	(Number of sections) 1	two	three	four	five	six	seven	eight
Positioning type	59±2.3	75±2.3	91±2.7	107±2.7	123±3.15	139±3.15	155±2.3	171±2.3
self-recovery	63±2.3	79±2.3	95±2.7	111±2.7	127±3.15	143±3.15	159±2.3	175±2.3
Type	L value of each section's conversion switch
Type	(Number of sections) 9	ten	eleven	twelve	thirteen	fourteen	fifteen	sixteen
Positioning type	187±3.6	203±3.6	219±3.6	235±3.6	251±4.05	267±4.05	283±4.05	299±4.05
self-recovery	191±3.6	207±3.6	223±3.6	239±3.6	255±4.05	271±4.05	287±4.05	303±4.05

LW5D-16 universal transfer switch

[CAM switch]LW21-16 type universal transfer switch

2026-6-18 10:09:47

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[CAM switch]LW12-16 type universal transfer switch

2026-6-18 10:09:38

LW12-16 universal transfer switch, with a specified heating capacity of 16A, can be used in circuits with AC 50HZ, voltage up to 500V, and DC voltage up to 440V for the conversion of electrical control circuits and direct control of three-phase motors with voltage of 380V, 5.5KW, and below. Its technical parameters comply with relevant national standards and international IEC standards. The product adopts the Sheng series of new processes and materials, with reliable performance, complete functions, small size, reasonable structure, and can replace all current products of the same type. The varieties include ordinary products, basic types, open type combination types, and protective type combination types.

[CAM switch]LW8 type universal transfer switch

2026-6-18 10:09:30

The LW8 universal transfer switch is mainly suitable for converting electrical control circuits and measuring instruments in circuits with AC 50HZ, voltage up to 380V and below, and DC voltage up to 220V and below. It can also directly control small capacity three-phase AC cage induction motors (2.2KW and 5.5KW).

[CAM switch]LW6 type universal transfer switch

2026-6-18 10:09:21

The LW6 universal transfer switch is mainly suitable for machine tool control circuits with AC 50HZ, voltage up to 380V, and DC voltage 220V, to achieve control and conversion of various circuits, and can also be used for conversion in other control lines.

[CAM switch]LW39-63 series universal transfer switch

2026-6-18 10:09:13

The LW39-63 series universal transfer switch is stable and generous, with a large switch contact capacity, suitable for use in circuits with AC 50-60Hz, voltage 690V and below, and DC 440V and below for circuit connection, disconnection, and conversion of single motors for starting, accelerating, controlling, and stopping. It can also be used as a conversion for electrical control and remote control of distribution equipment in large capacity control circuits. The microplate is made of imported materials and similar foreign product technology, which is beautiful and durable. It can be engraved with special characters and text according to different customer needs;
The shell is made of flame-retardant PBT, which is heat-resistant and self extinguishing;
More reliable electrical performance and high cost-effectiveness;
There are positioning angles of 30 °, 60 °, and 90 °, with a total of 12 positions per week;
The switch contact has a large capacity, and the agreed heating current is 63A;
It has multiple functions such as regular, lockable, and secure.

[CAM switch]LW39-25A series universal transfer switch

2026-6-18 10:09:05

The LW39-25A series universal transfer switch has a novel structure, unique and beautiful appearance, and a specified heating current of 25A. It has multiple design patents and the maximum DC breaking capacity of the switch can reach 1.25A/220V under DC-13 conditions. It is the preferred product for circuit breaker opening and closing master switches.

Unique and beautiful appearance, powerful functions;
Built in wiring for higher safety;
All internal movement parts are designed with rolling bushings, providing a very soft tactile sensation;
Contact gold plating treatment, with an agreed heating current of up to 25A;
There are positioning angles of 30 °, 45 °, and 90 °, with a total of 12 positions per week;
The variety is complete, including ordinary type, lock type, light type, and safety type.

LW39-25A series universal transfer switch model meaning

[CAM switch]LW39-16 series universal transfer switch

2026-6-18 10:08:56

The LW39-16 series universal transfer switch has a complete range of specifications, mainly divided into A type and B type. According to function, it can be classified into general type, self resetting type, safety type, key type, etc. It has beautiful appearance, powerful function, suitable for AC 50-60Hz, voltage 690V and below; In circuits below 440V DC, it can be used as a conversion for electrical control and remote control for distribution equipment; Conversion of electrical measuring instruments and control of servo motors; Conversion of electrical measuring instruments and control of servo motors; It can also be used as a small capacity squirrel cage for direct control.

LW39-16 series universal transfer switch

[CAM switch]LW5-16 series universal transfer switch

2026-6-18 10:08:39

The LW5-16 series universal transfer switch is suitable for electrical control circuit conversion in circuits with AC 50Hz, voltage up to 500V or DC voltage up to 440V, and for direct control of three-phase squirrel cage asynchronous motors with voltage of 380V, 5.5kW and below.
purpose
The LW5 series universal transfer switch is suitable for converting electrical control circuits (electromagnetic coils, electrical measuring instruments, servo motors, etc.) in circuits with AC 50Hz, rated working voltage of 500V and below, and DC voltage up to 440V. It can also directly control the starting, reversible conversion, speed change, etc. of 5.5kW three-phase squirrel cage asynchronous motors. The product complies with the standard GB 14048.5

LW5-16 series universal transfer switch model and its meaning

Usage code:
Q1, Q2- Direct Start
N-reversible conversion
S-dual speed electric motor variable speed
SN dual speed motor variable speed reversible
LW5 series universal conversion switch

Classification
1�� Classified by purpose
1. Switching switch for main control, 2. Switching switch for direct control of 5.5KW motor
2�� Classified by operation method
1. Positioning type 2, self replicating type
3�� Divided by the appearance of the actuator
1. Knob type 2, spherical pinch type
4�� The combination of operation mode and actuator position is shown in the table

operation method

Feature code

Operator position

self-recovery

0°

45°

0°

45°

Positioning type

0°

45°

0°

45°

0°

45°

90°

45°

0°

45°

90°

45°

0°

45°

90°

135°

90°

45°

0°

45°

90°

135°

90°

45°

0°

45°

90°

135°

180°

120°

90°

60°

30°

0°

30°

60°

90°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

120°

90°

60°

30°

0°

30°

60°

90°

120°

150°

180°

45°

90°

0°

90°

Main technical parameters of LW5-16 series universal transfer switch

Mechanical and electrical lifespan
Mechanical lifespan: 100 × 10 times, operating frequency of 300 times/hour, operating frequency of 120 times/hour at AC-4.
Electrical lifespan:
At AC-15 and DC-13, the operating frequency is 20 × 10 and 300 times/hour.
At AC-3, the frequency is 19.5 × 10 times and the operating frequency is 300 times/hour.
At AC-4, the frequency is 0.5 × 10 times and the operating frequency is 120 times/hour.

External dimensions and installation dimensions
Overall dimensions

[CAM switch]LW2 series universal transfer switch

2026-6-18 10:08:30

1�� Scope of application
The LW2 series universal transfer switch is suitable for various switch devices in electrical equipment with AC and DC voltages up to 220V and below. It can be used as a transfer switch for various electrical instruments, servo motors, and micro motors. It can be installed on metal plates and insulation plates in distribution boxes, control systems, or other devices, and can be used in vertical, horizontal, and inclined directions.

3�� Technical data of LW2 series universal transfer switch
1. The rated current of the switch contact is 10A, and the rated voltage is 220V (when the current does not exceed 0.1A, it is allowed to be used in 380V circuits).
The operating frequency of the transfer switch should not exceed 10 times per hour, and the breaking current should not exceed 50% of the accident current in the table.
3. The signal contacts are 1A, 10=20, 30=40, and 50, with a contact capacity of 10% of the signal measured in the table.
4. The handle with signal signal has a bulb capacity of 115V and 8W.

model	Expressing meaning
LW2-YZ	Equipped with positioning and automatic reset signal lights (with holding contacts)
LW2-Y	Equipped with positioning and signal lights
LW2-Z	Equipped with positioning and automatic reset
LW2-W	Equipped with automatic reset
LW2-H	Equipped with positioning and removable handle
LW2	With positioning
X	Equipped with limit mechanism
F	Square panel
O	Circular panel
A	The contacts are arranged in a special form

Type of current, nature of load

communication

direct current

two hundred and twenty

one hundred and twenty-seven

twenty-two

one hundred and ten

resistive

A allows for current interruption during normal operation

resistive

30A

35A

resistive

12A

18A

1.5A

resistive

B allows for current interruption in the discharge state

resistive

40A

45A

10A

Inductive

15A

23A

LW2 series universal conversion switch

[reversing switch]BZZ51 Explosion proof conversion switch

2026-6-18 10:07:51

Application scope of BZZ51 explosion-proof conversion switch:
1. Hazardous areas with explosive gas mixtures: Zone 1, Zone 2.
2. Explosive gas mixture: IIA, IIB, IIC.
3. Temperature group: T1 to T6.
4. Explosion proof signs: Exde �� BT6, * Exde �� CT6.
Note: Please specify the requirement for Level IIC.

Product Features:
1. The surface of the cast aluminum alloy shell is sprayed with plastic.
2. Built in conversion switch, used in electrical circuits with current below 60A, as a power supply introduction switch, and can control motor starting, shifting, stopping, reversing, etc.
3. Both steel pipes and cables can be used for wiring.

Main technical parameters of BZZ51 explosion-proof conversion switch:

Product model	rated voltage	rated current	Explosion-proof marking	Cable outer diameter (mm)
BZX51-10	220/380V	10A	Exd �� BT6	10~14 18-22
BZX51-25		25A
BZX51-25		60A

BZZ51 explosion-proof conversion switch

[reversing switch]BZD Explosion proof reversing switch

2026-6-18 10:07:42

Application scope of BZD explosion-proof reversing switch:
1. Hazardous areas in Zone 1 and Zone 2.
2. Explosive gas environments of Class IIA, IIB, and IIC.
Note: It is required to indicate the IIC category

Product Features:
1. Cast aluminum alloy shell with surface spray coating
2. Equipped with a built-in conversion switch, used in electrical circuits with current below 60A, as a power supply introduction switch, and can control motor starting, shifting, stopping, reversing, etc
3. Steel pipes or cables can be used for wiring
4. Complies with the requirements of GB3836-2000 and IEC60079 standards

BZD explosion-proof reversing switch model meaning:

Main technical parameters:

Product Model	Rated voltage (V)	Rated current (A)	Explosion-proof marking	Cable outer diameter (diameter, mm)
BQXN-60/��	220/380	sixty	Exed II BT6 ^*Exed II CT6	10-14 18-22
BQXN--100/��		one hundred
BQXN --100 Large/��		sixty

BZD explosion-proof reversing switch

[reversing switch]KO3-15A Reverse Switch

2026-6-18 10:07:34

KO3-15A Reverse Switch

[reversing switch]KO3/60A Reverse Switch

2026-6-18 10:07:26

KO3/60A Reverse Switch

[reversing switch]QS series waterproof reverse switch

2026-6-18 10:07:17

The QS series waterproof reverse switch is suitable for direct starting and stopping of three-phase squirrel cage asynchronous motors with AC 50Hz, voltage 380V, and power up to 7.5kW, as well as for switching between two circuits.

Compliant with standard: GB14048.3-2002

[reversing switch]KO5-M(QS) series reversing switch

2026-6-18 10:07:08

purpose

The KO5-M (QS) series reversing switch is a patented new product (patent number: 973 12941.7) that replaces the old QS series switch. It is the most innovative, beautiful, small in size, flexible in operation, and has a long service life among similar products. Especially, it has excellent dustproof and waterproof performance, so it can be widely used in various environmental conditions.
This series of waterproof reversing switches is suitable for circuits with AC 50HZ, rated voltage up to 380V, and maximum capacity of 5.5KW. It is used to directly turn on and off a single asynchronous motor, enabling it to start, run, stop, and reverse.

Main specifications and technical parameters:

Model	Agreed heating current A	Agreed working current A	Rated working power KW
Model	Agreed heating current A	Agreed working current A	Ue380V	Ue220
KO5-M-16	sixteen	seven	three	one point seven
KO5-M-32	thirty-two	twelve	five point five	three point four

KO5-M (QS) series reversing switch

[reversing switch]KO3 series reversing switch

2026-6-18 10:06:59

Application of KO3 series reversing switch

1. This series of switches is suitable for use in AC 50HZ three-phase three wire system conversion phase sequence wiring, such as controlling the forward and reverse rotation of motors. The technical performance indicators of the switches comply with GB14048.5-93 standard.
2. The maximum capacity of the motor controlled by this series of switches is shown in the table below

Specification Model	220V	380V
KO3-15	1.7KW	3KW
KO3-30	3.4KW	5.5KW

3. This series of switches should be installed inside circuit control switches and fuses, and should not be used for single power control. They should also not be installed in excessively humid or corrosive gas environments.
4. This series of switches should be used below the rated capacity, but should not be used for sudden braking.
5. When using this series of switches, the contact surface and rotating mechanism of the contacts should be checked regularly. If there is any burning or inflexibility, the power should be disconnected and the switch should be repaired before use.
6. This series of switches should be properly grounded during installation.
7. The installation dimensions of this series of switches are shown in the following chart

Model	A±0.50	B±0.50	Ø±0.50
KO3-15	sixty	fifty-two	six point five
KO3-30	ninety-five	seventy-five	seven

[reversing switch]QX1-3N1/5.5 reversible conversion switch

2026-6-18 10:06:51

QX1-3N1/5.5 reversible transfer switch, suitable for direct starting, stopping, and reversing of three-phase asynchronous motors with AC 50HZ or 60HZ voltage of 380V and capacity below 5.5KW.

[combination switch]H212-40/09 Power cut-off switch

2026-6-16 20:18:06

H212-40/09 power cut-off switch

[combination switch]H212-25/04 Power cut-off switch

2026-6-16 20:17:57

H212-25/04 power cut-off switch

[combination switch]HZ12-40/09 Power cut-off switch

2026-6-16 20:17:48

HZ12-40/09 power cut-off switch

[combination switch]HZ12-25/04 Power cut-off switch

2026-6-16 20:17:40

HZ12-25/04 power cut-off switch

[combination switch]HZ12-40/04 Power cut-off switch

2026-6-16 20:17:31

HZ12-40/04 power cut-off switch

[combination switch]HZ12-16/04 Power cut-off switch

2026-6-16 20:17:23

HZ12-16/04 power cut-off switch

[combination switch]HZ12-40/08 Power cut-off switch

2026-6-16 20:17:14

HZ12-40/08 power cut-off switch

[combination switch]HZ5D-40/7.5-M05 combination switch

2026-6-16 20:17:06

HZ5D-40/7.5-M05 combination switch

[combination switch]HZ5D-20/L03BF combination switch

2026-6-16 20:16:57

HZ5D-20/L03BF combination switch

[combination switch]HZ5D-60A/2GS combination switch

2026-6-16 20:16:49

HZ5D-60A/2GS combination switch

[combination switch]HZ5D-20/4/MO5 combination switch

2026-6-16 20:16:41

HZ5D-20/4/MO5 combination switch

[combination switch]HZ5D-20/2GS combination switch

2026-6-16 20:16:32

HZ5D-20/2GS combination switch

[combination switch]HZ5B-20A/D303.3 combination switch

2026-6-16 20:16:24

HZ5B-20A/D303.3 combination switch

[combination switch]HZ5B-10A/M08 combination switch

2026-6-16 20:16:15

HZ5B-10A/M08 combination switch

[combination switch]HZ5B-20A/4.CCHN combination switch

2026-6-16 20:16:06

HZ5B-20A/4. CCHN combination switch

[combination switch]ME-4 type combination switch

2026-6-16 20:15:58

ME-4 type combination switch

[combination switch]HZ5B-20A/2 combination switch

2026-6-16 20:15:49

HZ5B-20A/2 combination switch

[combination switch]LSD11-80A Load circuit breaker switch

2026-6-16 20:15:41

LSD11-80A load circuit breaker

[combination switch]HZ12D-25/3 Power Rotating Combination Switch

2026-6-16 20:15:32

HZ2D-25/3 power rotary combination switch

[combination switch]HZ5D-10/1.7/L03 Power cut-off switch

2026-6-16 20:15:23

HZ5D-10/1.7/L03 power cut-off switch

Mechanical and electrical lifespan
Mechanical lifespan: 0.1 × 106 cycles, operating frequency of 120 cycles per hour.
Electric lifespan: AC-23 has 0.03 × 106 cycles and an operating frequency of 120 cycles per hour.
AC-3 is 0.03 × 106 times, with an operating frequency of 120 times/hour.
AC-4 is 0.03 × 106 times, with an operating frequency of 120 times/hour.

HZ5D-10/1.7/L03 power cut-off switch

[combination switch]HZ12D-40/04 Power cut-off switch

2026-6-16 20:15:14

HZ12D-40/04 power cut-off switch

[combination switch]HZ10-25P/3 combination switch

2026-6-16 20:15:05

Model	Dimensions (mm) A1��A2��H��D��C	Installation size (mm) B1�� B2��S��J
HZ10D-25/2	100 114 98 8	90 100 6--
HZ10D-25/3	100 114 108 8-92	90 100 6--

HZ10-25P/3 combination switch

[combination switch]HZ10/100E119 combination switch

2026-6-16 20:14:57

Model	Dimensions (mm) A1��A2��H��D��C	Installation size (mm) B1�� B2��S��J
HZ10D-10/1	65 86 62 �� 6	55 74 5--
HZ10D-10/2	65 86 68 �� 6	55 74 5--
HZ10D-10/3	65 86 74 �� 6~58	55 74 5--
HZ10D-16/1	65 86 62 �� 6	55 74 5--
HZ10D-16/2	65 86 68 �� 6	55 74 5--
HZ10D-16/3	65 86 74 �� 6~58	55 74 5--
HZ10D-25/2	100 114 98 8	90 100 6--
HZ10D-25/3	100 114 108 8-92	90 100 6--
HZ10D-63/2	142 153 129 9	128 139 7 18
HZ10D-63/3	142 153 144 9-154	128 139 7 18
HZ10D-100/3	142 153 152 9-128	128 139 7 18

HZ10/100E119 combination switch

[combination switch]HZ3-134 combination switch

2026-6-16 20:14:49

HZ3-134 combination switch

[combination switch]HZ12-25/08 combination switch

2026-6-16 20:14:39

HZ12-25/08 combination switch

[combination switch]HZ10D-10P/3 combination switch

2026-6-16 20:14:31

Model	Dimensions (mm) A1��A2��H��D��C	Installation size (mm) B1�� B2��S��J
HZ10D-10/3	65 86 74 �� 6~58	55 74 5--

HZ10D-10P/3 combination switch

[combination switch]HZ5B-10/2 combination switch

2026-6-16 20:14:23

HZ5B-10/2 combination switch

[combination switch]HZ5D-20/4-L03 combination switch

2026-6-16 20:14:14

HZ5D-20/4-L03 combination switch

[combination switch]HZ10/10/3M combination switch

2026-6-16 20:14:06

HZ10-100/3 combination switch

Model	Dimensions (mm) A1��A2��H��D��C	Installation size (mm) B1�� B2��S��J
HZ10D-10/1	65 86 62 �� 6	55 74 5--
HZ10D-10/2	65 86 68 �� 6	55 74 5--
HZ10D-10/3	65 86 74 �� 6~58	55 74 5--

HZ10/10/3M combination switch

[combination switch]HZ3-133 combination switch

2026-6-16 20:13:57

HZ3-133 combination switch

[combination switch]HZ4-22 combination switch

2026-6-16 20:13:49

HZ4-22 combination switch

[combination switch]LSD11-25A Load circuit breaker switch

2026-6-16 20:13:41

LSD11-25A load circuit breaker

[combination switch]LSD11-40A Load circuit breaker switch

2026-6-16 20:13:32

LSD11-40A load circuit breaker

[combination switch]LSD11-32A Load Circuit Breaker Combination Switch

2026-6-16 20:13:24

LSD11-32A load circuit breaker combination switch

[combination switch]KDHC-32A Split combination switch

2026-6-16 20:13:16

KDHC-32A Split Combination Switch

[combination switch]HZ3-132 combination switch

2026-6-16 20:13:07

HZ3-132 combination switch

[combination switch]HZ12D-20/L03 Universal transfer switch

2026-6-16 20:12:59

HZ12D-20/L03 universal transfer switch

[combination switch]KDH-25/2/8 Split combination switch

2026-6-16 20:12:50

KDH-25/2/8 split combination switch

[combination switch]HZ10-100/3 combination switch

2026-6-16 20:12:38

HZ10-100/3 combination switch

Model	Dimensions (mm) A1��A2��H��D��C	Installation size (mm) B1�� B2��S��J
HZ10D-100/3	142 153 152 9-128	128 139 7 18

HZ10-100/3 combination switch

[combination switch]HZ10-25/3 combination switch

2026-6-16 20:12:29

HZ10D is mainly used in circuits to manually and infrequently connect, disconnect, and convert resistor inductor mixed load current resistor load circuits, and can also control small capacity AC motors.

HZ10-25/3 combination switch

[combination switch]HZ12D-25/04 Power cut-off switch

2026-6-16 20:12:20

HZ2D-25/04 power cut-off switch

[combination switch]HZ5B-10/3/B005 combination switch

2026-6-16 20:12:12

HZ5B-10/3/B005 combination switch

[combination switch]HZ3 series combination switch

2026-6-16 20:12:03

HZ3 series combination switch

1�� Scope of application
The HZ3 series combination switch is suitable for use in circuits with AC 50Hz or 60Hz and voltage up to 500V. It can be used as a power supply switch or as a control operating frequency for three-phase squirrel cage induction motors with a frequency not exceeding 300 times per hour. The special structure combination switch is used in DC circuits with voltage up to 220V to control electromagnetic suction cups.

2�� Structural features
The HZ3 series combination switch is composed of drum shaped moving contacts, upright static contacts, and a set of positioning mechanisms. There are two types of protection: thin steel plate shell protection and open type. There are two installation methods: panel type and surface type. The middle drum shaped moving contact rotates to open and close, and the positioning mechanism can make the contact move quickly and correctly, without staying in any middle position.

3�� Main technical parameters of HZ3 series combination switch

model	Rated current A	Control electromagnetic suction cup A			Control motor KW
model	Rated current A	220V	380V	550V	110V	220V
HZ3��131	ten	two point two	three	three point five
HZ3��132	ten
HZ3��133	ten
HZ3��431	ten
HZ3��432	ten
HZ3��451	ten
HZ3��461	twenty	five point five	seven point five
HZ3��452					five	two point five

4�� Appearance and installation dimensions

Model	Amax	Lmax
HZ3-133	one hundred and two	one hundred and forty-seven
HZ3-161	one hundred and sixty-one	two hundred and two
HZ3-431	one hundred and two	one hundred and sixty-two
HZ3-432	one hundred and two	one hundred and sixty-two
HZ3-451	one hundred and forty-two	two hundred and two
HZ3-452	one hundred and forty-two	two hundred and two

HZ3 series combination switch

[combination switch]HZ25D series combination switch

2026-6-16 20:11:55

purpose
The HZ25D series combination switch is mainly used as a power switch and a starting, reversing, and variable speed switch for electric motors in electrical circuits, and can also be used for switching control circuits.

Main technical parameters

Model		HZ25D-10	HZ25D-20	HZ25D-40
Rated working voltage Ue	V	four hundred and forty	four hundred and forty	four hundred and forty
Agreed heating current lth	A	ten	twenty	forty
Rated working current le	A	four	eight	sixteen
Rated control power P	kW	one point seven	four	seven point five

Mechanical and electrical lifespan
Mechanical lifespan: 0.01 × 106 cycles, operating frequency of 120 cycles per hour.
Electric lifespan: 0.03 × 106 at AC-23A, operating frequency of 120 times/hour.
At AC-3, the frequency is 0.03 × 106 times and the operating frequency is 120 times/hour.
At AC-4, the frequency is 0.03 × 106 times and the operating frequency is 120 times/hour.

Dimensions of HZ25D series combination switch

Model	Dimensions (mm)
Model	A	Lmax	B
HZ25D-10	fifty	18+10n	thirty-five
HZ25D-20	fifty-six	24+13n	thirty-eight
HZ25D-40	sixty-four	30+14n	forty-two

installation dimensions
HZ25D-10

HZ25D-20

HZ25D-40

[combination switch]HZ5BGS series padlock type power cut-off switch

2026-6-16 20:11:47

purpose
The HZ5BGS padlock type power cut-off switch is an improved version of HZ5D, suitable for starting, stopping, reversing, and shifting electric motors in circuits.

Product model and its meaning

classification
1. Classified by purpose
Used for converting circuits
Directly open and close the electric motor

Divided by the number of contact system sections
There are 1-8 sections, 10 sections, a total of 9 types

Main technical parameters

Agreed heating current lth	A	twenty
Rated working voltage Ue	V	four hundred and forty
Rated working current le	A	twenty
Rated control power P AC-3	kW	four
Operation cycle number AC-22A
Empty load F		eight thousand and five hundred
Carrying G		one thousand and five hundred
Total number H		ten thousand

Overall dimensions
HZ5BGS-20/03-A, HZ5BGS-20/04-A type switches

HZ5BGS-20/03-B, HZ5BGS-20/04-B type switches

installation dimensions

Type A installation size Type B installation size

[combination switch]HZ5D series combination switch

2026-6-16 20:11:38

purpose
The HZ5D series combination switch is mainly used as a power switch and a starting, reversing, and variable speed switch for electric motors in electrical circuits, and can also be used for switching control circuits.

Product model and its meaning

Note: Location feature code: L: 0o-60o, M��60o-0o-60o

classification
Classified by purpose
Power switch and motor starting switch: bipolar L01, three pole L02, four pole L03
Two types of voltage conversion switches: bipolar M04 and three pole M06
Reversible conversion switch for electric motor: M05
Star Triangle Start Switch: M07
Multi speed motor variable speed switch: bipolar M08, three speed M16

Main technical parameters of HZ5D series combination switch

Model		HZ5D-10	HZ5D-20	HZ5D-40
Rated working voltage Ue	V	four hundred and forty	four hundred and forty	four hundred and forty
Agreed heating current lth	A	ten	twenty	forty
Rated working current le	A	four	eight	sixteen
Rated control power P	kW	one point seven	four	seven point five

Model	Dimensions (mm)
Model	A	Lmax	B
HZ5D-10	sixty	32+14n	thirty-eight
HZ5D-20	sixty	34+13n	thirty-eight
HZ5D-40	seventy-five	40+16n	thirty-eight

installation dimensions
HZ5D-10

HZ5D-20

HZ5D-40

HZ5D series combination switch

[combination switch]HZ10D series combination switch

2026-6-16 20:11:30

Scope of application

The HZ10D series combination switch is mainly suitable for electrical circuits with AC 50Hz or 60Hz, rated working voltage of 380V and below, DC voltage of 220V and below, and rated current up to 100A. It is used for manual infrequent connection, disconnection, and conversion of AC resistance inductance mixed load circuits and DC resistance load circuits, and can also be used for direct control of small capacity AC motors.

meet the standard
GB14048.3-1993

Normal usage and installation conditions of HZ10D series combination switch
1. Normal usage conditions
a) The upper limit of ambient air temperature is+40 ��, and the average value within 24 hours does not exceed+35 ��.
The lower limit of ambient air temperature is -25 ��.
b) The altitude of the installation site shall not exceed 2000m.
c) When the maximum temperature at the installation site is+40 ��, the relative humidity of the air should not exceed 50%. Higher relative humidity is allowed at lower temperatures, such as up to 90% at+20 ��. Special measures must be taken for occasional condensation on the product due to humidity changes.
d) The pollution level is level 3.
e) The installation category is Class III.

HZ10D series combination switch model and its meaning

classification
According to the installation type, there are pre board wiring type and post board wiring type.
According to the purpose of the switch:
a) Single power switch; b) Two power or two circuit switch (code P); c) Three circuit changeover switch (code S); d) Four circuit changeover switch (code G); e) Control the switch of small capacity AC motor (code N);
According to the number of poles of the switch, there are single pole, two pole, three pole, and four pole.
According to the number of switch contact system sections, there are one section, two sections, three sections, four sections, five sections, and six sections.

Main usage categories
Classification Table 1 provides the main usage category codes for combination switches.

Table 2 shows the rated values of the combination switch

Table 3 shows the number of operating cycles and electrical life of the combination switch.

Appearance and installation dimensions

Table 4 of the HZ10D series combination switch provides the relevant dimensions in Figures 1 to 3

Ordering Instructions
When placing an order, it is necessary to specify:
a) Product model, specifications, and name;
b) Installation type (front board wiring type or back board wiring type);
c) Quantity;
d) Loan supply time, delivery location, receiving unit, and recipient.
2. Example of writing model specifications, installation form, and quantity when ordering:
a) 50 units of HZ10D-10/3 board rear wiring type;
b) 10 units of HZ10D-63/2 board front wiring type.

[combination switch]K05-M series waterproof reverse switch

2026-6-16 20:11:21

Scope of application

The K05-M series waterproof reversing switch is suitable for use in circuits with AC 50Hz, rated voltage up to 380V, and maximum capacity of 5.5kw. It is used to directly turn on and off a single asynchronous motor, enabling it to start, run, stop, and reverse. Due to its novelty, beauty, strong dust and water resistance, it can be widely used in various environmental conditions.

structural characteristics

The K05-M series waterproof reversing switch is the most innovative and valuable product among similar products. Its characteristics are small size, flexible operation, strong dust and waterproof performance, and can be widely used in various environmental conditions. This series of products consists of three parts, namely the operating mechanism, contact system, and handle, and has a thin steel plate formed shell with high-quality baked paint sprayed on the surface. The contact material is silver. Reliable operation of its connection and disconnection by metal cam and roller, with long electromechanical life.

Main technical parameters

wiring diagram

Appearance and installation dimensions

Ordering Instructions
Users must specify the product model, specifications, and quantity in detail when placing an order
For example: K05-M-16 80 units

[combination switch]HZ12 series combination switch

2026-6-16 20:11:12

purpose
The HZ12 series combination switch is suitable for cutting off and connecting power in circuits with AC 50Hz or 60Hz and rated working voltage up to 500V. It can also directly open and close motors and high inductance loads.
The product complies with the standard GB 14048.3.

Product model and its meaning

HZ12 series combination switch classification
The HZ12 series combination switch includes basic type, padlock type, concealed lock type, interlock type, etc. Each type has two types: emergency stop type and ordinary type. The ordinary type uses a black panel and black knob, while the emergency stop type uses a yellow panel and red knob as emergency stop signs.

Product type, name, purpose, and model
Basic switches are suitable for on/off use in ordinary circuits.
Basic combination switch (power cut-off switch) model: HZ12-16/01, HZ12-25/01, HZ12-40/01
Emergency stop basic combination switch (power cut-off switch) models: HZ12-16/02, HZ12-25/02, HZ12-40/0225A, and 40A power cut-off switches
The external dimensions are consistent, and the installation dimensions of 16A, 25A, and 40A are consistent.
Each type of power cut-off switch has a protective cover at the incoming end.

The padlock type switch can be used as a power cut-off switch in machine tools that require a padlock.
Both the disconnected position (i.e. "0" position) and the connected position (i.e. "1" position) can be locked with a padlock.
Emergency stop combination switch (power cut-off switch) model: HZ12-16/04, HZ12-25/04, HZ12-40/04

The concealed lock type switch can be used as a power cut-off switch in machine tools that require self locking.
It can be locked with its own hidden lock in the disconnected position (i.e. "0" position).
Hidden lock type combination switch (power cut-off switch) model: HZ12-16/05, HZ12-25/05, HZ12-40/05

The padlock interlocking switch can be used as a power cut-off switch in machine tools that requires both padlock function and interlocking with the electrical cabinet door.
Emergency stop padlock interlocking combination switch (power cut-off switch) model: HZ12-16/08, HZ12-25/08, HZ12-40/08
Before opening the cabinet door, the power cut-off switch must be disconnected to cut off the power supply.
The interlocking mechanism is released when the power cabinet door is opened and restored when the power cabinet door is closed.

The concealed lock interlocking switch can be used as a power cut-off switch in machine tools that requires both concealed lock function and interlocking with the electrical cabinet door.
Emergency stop basic combination switch (power cut-off switch) model: HZ12-16/09, HZ12-25/09, HZ12-40/09
Before opening the cabinet door, the power cut-off switch must be disconnected to cut off the power supply.
The interlocking mechanism is released when the cabinet door is opened, and restored when the cabinet door is closed.

Main technical parameters

Model		HZ12-16		HZ12-25		HZ12-40
Agreed heating current lth	A	sixteen		twenty-five
Rated working voltage Ue	V	two hundred and forty	four hundred and forty	two hundred and forty	four hundred and forty	two hundred and forty	four hundred and forty
Rated working current le
AC-3	A		eleven		fifteen		thirty
AC-15	A	eight	six	twelve	eight	twenty-two	twelve
AC-23	A		eleven		fifteen		thirty
AC-21	A		sixteen		twenty-five		forty

External dimensions and installation dimensions

Model	Lmax(mm)
HZ12-16	eighty-six
HZ12-25	eighty-nine
HZ12-40	eighty-nine

Model	Lmax(mm)
HZ12-16	eighty-six
HZ12-25	eighty-nine
HZ12-40	eighty-nine

Model	Lmax(mm)
HZ12-16	one hundred and seven
HZ12-25	one hundred and ten
HZ12-40	one hundred and ten

Model		L(mm)
HZ12-��/07.1	HZ12-��/08.1	145~149
HZ12-��/07.2	HZ12-��/08.2	170~174
HZ12-��/07.3	HZ12-��/08.3	195~199
HZ12-��/07.4	HZ12-��/08.4	220~224
HZ12-��/07.5	HZ12-��/08.5	245~249

Model		L(mm)
HZ12-��/09.1	HZ12-��/10.1	168~171
HZ12-��/09.2	HZ12-��/10.2	193~196
HZ12-��/09.3	HZ12-��/10.3	218~221
HZ12-��/09.4	HZ12-��/10.4	243~246
HZ12-��/09.5	HZ12-��/10.5	268~271

[combination switch]HZ12A series combination switch

2026-6-16 20:11:03

The HZ12A series power cut-off switch is suitable for power on and off in the electrical control circuit of machine tools with AC 50Hz (60HZ) and voltage 380V (660V). It can also be used as the main power switch for electrical control boxes (cabinets) of casting, textile, light industry, chemical and other mechanical equipment, as well as the starting switch for inductive loads such as direct starting, Y - �� starting, and reverse starting AC motors.

HZ12A series combination switch meets the standard: GB14048.3-93

[combination switch]HZ10 series combination switch

2026-6-16 20:10:55

The HZ10 series combination switch is mainly suitable for circuits with AC 50Hz, voltage of 380V and below, and DC voltage of 220V and below. It is used for manual infrequent connection or disconnection of circuits, switching of power sources or loads, measuring circuits, and can also control small capacity motors.

HZ10 series combination switch meets the standard: GB14048.3-93

[combination switch]HZ5B series combination switch

2026-6-16 20:10:47

purpose
The HZ5B combination switch is an improved version of HZ5D, suitable for starting, stopping, reversing, and shifting electric motors in circuits.

HZ5B series combination switch product models and their meanings

Main technical parameters

Agreed heating current lth	A	ten
Rated working voltage Ue	V	four hundred and forty
Rated working current le	A	ten
Rated control power P AC-3	kW	one point seven

Overall dimensions

installation dimensions

[combination switch]HZ5 series combination switch

2026-6-16 20:10:38

The HZ5 series combination switch is mainly used as a power switch and a starting, reversing, and variable speed switch for cage induction motors in electrical circuits with AC 50Hz, voltage 380V and below. It can also be used for switching control circuits. Compliant with standards: HZ5 series combination switch complies with GB14048.3-93