Shanghai Huabang Industrial Business Network - Spring operating mechanism

[Spring operating mechanism]CT21-40.5 type load switch operating mechanism

2026-6-16 14:00:32

CT21-40.5 type load switch operating mechanism

[Spring operating mechanism]GL6-V type spring operated mechanism

2026-6-16 14:00:23

GL6-V type spring operating mechanism

[Spring operating mechanism]WJCT50-V type sealed reclosing gas filling cabinet operating mechanism

2026-6-16 14:00:15

WJCT50-V type sealed reclosing gas filling cabinet operating mechanism

[Spring operating mechanism]WJCT58-II type circuit breaker operating mechanism

2026-6-16 14:00:06

WJCT58-II type circuit breaker operating mechanism

[Spring operating mechanism]WJCT58-V type circuit breaker operating mechanism

2026-6-16 13:59:58

WJCT58-V type circuit breaker operating mechanism

[Spring operating mechanism]CT21C type spring operated mechanism

2026-6-16 13:59:50

CT21C type spring operated mechanism

[Spring operating mechanism]CT21-V type spring operated mechanism

2026-6-16 13:59:41

CT21-V type spring operated mechanism

[Spring operating mechanism]WJCT48 type spring operated mechanism

2026-6-16 13:59:33

WJCT48 type spring operated mechanism

[Spring operating mechanism]WJCT51 type spring operated mechanism

2026-6-16 13:59:24

WJCT51 type spring operated mechanism

[Spring operating mechanism]WJCT51-40.5 type spring operated mechanism

2026-6-16 13:59:16

WJCT51-40.5 type spring operated mechanism

[Spring operating mechanism]CT50 type spring operated mechanism

2026-6-16 13:59:07

The CT50 spring mechanism is a comprehensive and innovative new generation of lightweight products, which can provide matching sulfur hexafluoride high-voltage circuit breakers (GCBs) and fully enclosed composite electrical appliances (GIS). The product is suitable for 126/145KV GIS/AIS three-phase linkage operation and 252KV GIS/AIS single-phase operation, and its performance indicators meet the technical requirements of "High Voltage Circuit Breaker GB1984-2003" and this product.
CT50 products have been received by Pinggao Electric, Mount Taishan High Voltage, Korea Xiaoxing, Korea Rijin, New Northeast Electric, ZTE Chuangyuan ABB�� Widely concerned and selected by customers such as Siemens.

[Spring operating mechanism]CY20 Spring hydraulic operating mechanism

2026-6-16 13:58:59

I. Overview
The CY20 spring hydraulic operating mechanism is an important component of the high-voltage circuit breaker spring hydraulic operating mechanism, and is a core control component for large-scale high-voltage transmission and transformation equipment. Especially, the YT-80 spring hydraulic operating mechanism with self-defense capability is one of the important conditions related to the safety of the power grid. For a long time, no good solution has been found both domestically and internationally, posing a great threat to the safe operation of the power grid.
The CY20 spring hydraulic operating mechanism is a product invented and developed by our company. Its performance adopts a unique on-off delay technology, which meets the self-defense capability requirements of high-voltage circuit breakers. It has the advantages of reasonable structure, advanced performance, stable on-off time, and high reliability.
2�� The main technological innovation points of the product
1. Innovatively adopting a combination structure of energy storage and working cylinder in the main structure;
2. Compared with similar foreign products, its performance indicators have the advantages of fewer seals, fewer components, lower cost, better processability, simpler structure, and higher reliability;
3. Especially, the design of its hydraulic system with added self-defense capability structure has advantages over similar foreign products, such as stable opening and closing time, small errors, simple structure, and low cost;
4. The sealing principle structure without external high pressure has been implemented in the design of the control valve, thus eliminating the possibility of dynamic leakage of high pressure. Designed according to the standards of the State Grid Corporation of China, the reliability of the overall structure has been greatly improved;
5. It can completely replace imported products.
3�� Basic principles and key technical content
The basic principle of this project is that the spring hydraulic operating mechanism mainly changes the quality and flow rate of high-pressure oil through the cut-off hole, controls the movement time of the piston rod, and delays the opening of the gate valve to ensure the closing opening time of the circuit breaker during the reclosing operation. Due to the use of hydraulic transmission principle, this device has high reliability, stable closing and opening time, and small error. After 5000 mechanical life assessments, the closing and opening time error is only 3ms. It fully meets the operating conditions of the circuit breaker model's reclosing operation for the second time, with three-phase synchronization not exceeding 3ms (required by the State Grid).
At present, the high-voltage circuit breaker operators operating in the power grid do not have self-defense capabilities, and the closing and opening times are controlled by time relays. Domestic manufacturers of high-voltage circuit breakers have not developed circuit breakers with true self-defense capabilities. Swiss ABB company uses the damping effect of the cut-off hole to drive the differential pressure to move towards the piston and drive the circuit of the stroke switch closing opening coil to achieve self-defense capability. Due to the arc factor during the stroke switch contact delay closing and the mechanical motion of the stroke switch, there are unstable factors, which make the closing opening time unstable, with large errors and low reliability. The closing opening time error is greater than 6ms, which cannot meet the operating conditions of the circuit breaker that the three-phase synchronization is not greater than 3ms during the second opening operation of the reclosing operation (required by the State Grid). The company's technical personnel, with years of experience, have developed an operating motor that meets the self-defense requirements of high-voltage circuit breakers. Its structure and technical performance are pioneering both domestically and internationally, and its technology is at the forefront of domestic and international standards.
4�� Main technical indicators
CY20 Spring Hydraulic Operating Mechanism Technology and Quality Indicators:
Opening power: CY20-4 6400J CY20-8 11000J
Closing power: CY20-4 2300J CY20-8 3500J
Rated voltage of opening coil: DC 220/110V
Rated current of opening coil: DC 1.6/3.2A
Rated voltage of closing coil: DC 220/110V
Rated current of closing coil: DC 1.6/3.2A
Opening time: 15~20ms
Closing time: 50-80ms
Opening and closing time: 0.28-0.3s
Self defense ability time (combined and divided time): 40-60ms (adjustable)
Self defense capability time error: �� 2 ms
Mechanical lifespan: 6000 cycles
Minimum operating voltage for opening: 45% of rated voltage
Minimum operating voltage for closing: 45% of rated voltage

[Spring operating mechanism]CTM1 type spring operated mechanism

2026-6-16 13:58:50

I. Overview
CTM1 type spring operated mechanism is used as a quick opening and closing operating device for ZF-126 series or ZF1-252 and isolation switches, grounding switches or load switches with equivalent required torque.
2�� Principle
This institution utilizes the principle of spring symmetry passing through the center, and through the forward and reverse rotation function of the motor, the mechanism compresses the spring to achieve rapid opening and closing. The institution has both manual and electric operation functions.
3�� Working conditions
1. Surrounding air temperature: lower limit -30 ��, upper limit+40 ��;
2. Altitude not exceeding 3000m;
3. Pollution level: Level III;
4. Shell protection level: IP54;
5. The wind pressure shall not exceed 700Pa (equivalent to a wind speed of 34m/s);
6. No fire or explosion hazards, severe pollution, no corrosive gases, and no severe vibration situations.

[Spring operating mechanism]DW45-2000/3 Operating mechanism

2026-6-16 13:58:42

DW45-2000/3 Operating Mechanism

[Spring operating mechanism]CT20B Spring operated mechanism

2026-6-16 13:58:33

Overview of CT20A Spring Operating Mechanism

1. Product model and name
CT20A Spring Operating Mechanism
2. Main purpose and performance of the product
This machine is used to operate 126KV high-voltage SF6 porcelain column circuit breakers and enclosed GIS composite electrical appliances. The mechanism has two modes of energy storage: electric energy storage and manual energy storage. The opening and closing operations can be remotely and locally operated by electric or manual means.
3. Our institution can perform slow opening and closing operations with the help of specialized tools.
Environmental conditions for use
1. Environmental temperature: -30 �� to+40 ��
2. Relative temperature: daily average not exceeding 95%; The monthly average is not greater than 90%.
3. Places without frequent and severe vibrations.
4. Usage location: indoor or outdoor
5. Protection level IP4XW

Main technical parameters of CT20A spring operating mechanism

name	unit	parameter	name	unit	parameter
Closing power	Nm	2000~3700	buffer stroke	mm	100-2
Opening power	Nm	1000~2000	mechanical life	time	ten thousand
Institutional output angle	degree	forty-five	Institution weight	Kg	two hundred and sixty

The energy storage motor is a dual-purpose AC/DC motor, and its main technical parameters are shown in Table 1

name	unit	parameter
Motor model		HDZ��26005B
Rated output power	W	six hundred
rated voltage	V	DC110��220 AC220
rated current	A	10��5
Normal operating voltage range		85��110��Ue
Rated working voltage energy storage time	S	��15
Motor speed	r��min	four hundred and eighty

The technical parameters of the closing electromagnet are shown in Table 2:

name	unit	parameter
rated voltage	V	��220	��110
rated current	A	two	three point three
rated power	W	four hundred and forty	three hundred and thirty
Coil resistance at 20 ��	��	110±5	33±1.6
Working voltage range		85��110��Ue

The technical parameters of the opening electromagnet are shown in Table 3:

name	unit	parameter
rated voltage	V	��220	��110
rated current	A	two	three point three
rated power	W	four hundred and forty	three hundred and thirty
Coil resistance at 20 ��	��	110±5	33±1.6
Working voltage range		65% to 120% Ue, less than 30% Ue, must not be disconnected for three consecutive operations

Ordering Instructions
Please specify when placing an order
1. Product model and name
2. Control circuit voltage
3. Opening and closing power parameters
4. Excluding secondary and cabinet components

[Spring operating mechanism]Hydraulic spring operating mechanism

2026-6-16 13:58:25

Overview
1. Product model and name
CYTB-4 hydraulic spring operating mechanism
2. Main purpose and performance of the product
2.1 This institution is used to operate 252KV high-voltage SF6 porcelain column circuit breakers and fully enclosed GIS composite electrical appliances. All performance indicators have reached the level of similar imported products and obtained utility model patents.
2.2 Single pole circuit breaker with single operating mechanism, achieving single pole operation, can be manually opened and closed slowly, locally manually opened and closed quickly, and can be quickly opened and closed locally through electronic control; Remote electric quick opening, closing, and reclosing. And it can achieve three pole operation.
2.3 The operating mechanism has the ability to issue interlocking signals for reclosing, closing, and opening when the system oil pressure drops to the limit value, and can achieve operational interlocking.
2.4 The operating mechanism has the performance of not experiencing slow tripping when the oil pressure drops to zero in the closed state and the oil pump motor is restarted to establish oil pressure.
The operating mechanism is equipped with a safety valve and has the function of self-protection in case of abnormal system oil pressure.
Environmental conditions for use
1. Environmental temperature -25 ��~40 ��
2. Relative temperature of 90%, monthly average not exceeding 90%; The daily average is not greater than 95%.
3. Maximum daily temperature difference of 25 ° C
4. Usage location: indoor or outdoor
5. Protection level IP54

Technical parameters of CYTB-4 hydraulic spring operating mechanism

serial number	name			unit	Piston rod stroke			Piston rod stroke
one	Mechanism working cylinder piston stroke			mm	205±1			230±1
two	Opening operation power during locking pressure			J	��5000			��5500
three	Closing operation power during locking pressure			J	��2000			��2150
four	Rated oil pressure			MPa	44.9±2.5
five	Energy storage piston stroke at rated oil pressure			mm	85±1 ��P=48.4MPa��
six	Oil pump starting pressure, energy storage piston stroke			mm	81.5±1 ��P=44.7±2.5 MPa��
seven	Stop oil pump, pressure storage, piston stroke			mm	83.5±1 ��P=44.9±2.5 MPa��
eight	Recloser locking point energy storage piston stroke			mm	77.5±1 ��P=44.4±2.5 MPa��
nine	Safe activation of energy storage piston stroke			mm	84.5+1 ��P��48.4 MPa��
ten	Locking point for opening and closing operation, energy storage piston stroke			mm	51±1			47±1
eleven	Opening locking point energy storage piston stroke			mm	38±1			33.5±1
twelve	Energy storage time from zero pressure to oil pump stop			S	��120
thirteen	Rated operating sequence				0��0.3S��CO��180S��CO
fourteen	Action time of the system during opening and closing			ms	��12
fifteen	Action time of the closing system			ms	��14
sixteen	The parameters of the opening and closing coils are the same			electricity press	DC220V	resistance	154��		steady state current	1.43A
					DC110V		36��			3.06A
seventeen	motor	model	HDZ-24740CTH	voltage	DC220V		speed	4000r/min
		power	470W	current	3A
eighteen	Maximum external dimensions			mm	890×��530			915×��530
nineteen	Institution weight			Kg	three hundred			three hundred and thirty

Ordering Instructions
Please specify when placing an order
1. Product model, name, piston stroke
2. Control circuit voltage DC110V or DC220V
3. There are no upper or lower connecting seat parts
4. Excluding secondary and shell components

[Spring operating mechanism]ZN13(Siemens 3AF type) type spring operated mechanism

2026-6-16 13:58:16

The ZN13 (Siemens 3AF type) spring operated mechanism can be used to operate ZN12/ZN13 indoor high-voltage vacuum circuit breakers and other outdoor or indoor vacuum circuit breakers with equivalent closing power. Its performance meets the requirements of GB1984 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product. It can be operated electrically with AC or DC power supply, or manually.

Technical parameters of ZN13 (3AF type) spring operating mechanism
1. The energy storage motor adopts a unidirectional permanent magnet DC motor, and its technical data is shown in the following figure:
Model Rated working voltage (V) Rated electrical power (w) Normal working current (A)
HDZ-1 2280B -110 220 3.56
HDZ-22280B -220 220 1.28
HDZ-1 2880B -110 275 4.4
HDZ-22880B -220 275 2.2
HDZ-13580B -110 350 5.5
HDZ-23580B -220 350 2.75
2. The opening and closing electromagnet adopts a spiral tube electromagnet, and its technical parameters are shown in the following figure:
Rated working voltage (V)~220-220-110
Rated working current (A) 3.4 1.5 3.4
Rated electrical power (w) 748 372 374
Coil resistance value at 20 �� (��) 65 150 33
Normal operating voltage range: 85% to 12096 rated operating voltage when closed
65% to 120% rated operating voltage for opening
When the rated working voltage is less than 30%, no points will be awarded for 3 times
3. The output angle of the mechanism is 58 ° -62 °.
4. The mechanism has a stroke of 72mm.
5. Mechanism closing power: 190-260J.

Ordering Instructions
1. Model and specifications of the circuit breaker, operating voltage, and rated breaking current of the circuit breaker.
2. Institution model and specifications.
3. Other technical requirements.

[Spring operating mechanism]CT37 type spring operated mechanism

2026-6-16 13:58:08

I. Overview
The CT37 spring operated mechanism can be used to operate ZW32-12 outdoor high-voltage vacuum circuit breakers and other outdoor or indoor vacuum circuit breakers with equivalent closing power. Its performance meets the requirements of GB1984 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product. Among them, CT37-S is a manual operating mechanism, and CT37-D is an electric operating mechanism. The manual operating mechanism has functions such as manual energy storage, manual opening and closing, and overcurrent protection. The electric operating mechanism has functions such as electric motor or manual energy storage, electric or manual switching, and overcurrent protection. The controller configured for overcurrent protection has surge, delay, and quick break protection functions.

2�� Usage conditions
The CT37 spring operated mechanism is used under the following conditions:
1. The upper limit of ambient air humidity is+65 ��, and the lower limit is -40 ��.
2. Altitude not exceeding 2000m; wind speed not exceeding 35m/s.
3. The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90% (+25 ��). The daily average steam pressure shall not exceed 2.2 × 103MPa, and the monthly average shall not exceed 1.8 × 103MPa.
4. Places without frequent and severe vibrations.

3�� Technical parameters
The energy storage motor adopts a unidirectional permanent magnet DC motor, and its technical parameter data is as follows:

model	53ZY-CJD01B	53ZY-CJD02B	53ZY-CJD03B	53ZY-CJD04B
Rated working voltage (V)	-220	-110	-48	-24
Rated electrical power (W)	forty
Normal operating voltage range	85%-110%
Rated working current (A)	0.5A	1.0A	1.8A	3.6A
Energy storage time (S)	��8

4�� Installation and Debugging of CT37 Spring Operating Mechanism
1. The size of the installation holes for the mechanism is shown in Figure 10, and the mechanism is installed on the short-circuit device with 4 small hexagonal bolts.
2. After the installation of the mechanism and short-circuit device, the following adjustments must be made:
a. The opening position of the mechanism should ensure that there is a gap of no less than 2mm between the roller of the output crank arm and the cam after energy storage;
b. The contact opening and closing of the auxiliary switch should be reliably switched;
c. Reliable operation of manual opening and closing device;
d. The operating parameters of the opening, closing, and overcurrent release should meet the requirements.

CT37 type spring operated mechanism

[Spring operating mechanism]CT21 Spring operating mechanism

2026-6-16 13:57:59

The CT21 spring operated mechanism can be used to operate the FZN21-12 indoor high-voltage vacuum load switch.

[Spring operating mechanism]CTY type spring energy storage hydraulic operating mechanism

2026-6-16 13:57:51

In the field of high-voltage SF6 switches, the hydraulic operating mechanism is generally responsible for the switch operation task. Most of these mechanisms use nitrogen as the energy storage medium, and their working pressure varies with the ambient temperature, and there is a problem of nitrogen leakage. In terms of structure, each hydraulic component is separated and needs to be connected by pipelines. As a result, there are too many sealing links and serious external oil leakage problems, which affect the reliability of high-pressure switch operation. To this end, the separated hydraulic component system has been replaced with an integrated module combination system, reducing the sealing link and replacing the nitrogen energy storage medium with a disc spring. This has fundamentally improved and enhanced the leak prevention and pressure characteristics of nitrogen and oil leakage, and is a major breakthrough for similar foreign products. This mechanism not only eliminates and improves the serious defects of old hydraulic mechanisms, but also provides convenience for various high-pressure switch configurations with newly added opening and closing operation functions and speed adjustable functions. It has been recognized by the Chinese market and even the world market. However, the control of the HMB-4 mechanism is still based on the principle of multi-stage control valves, and practical experience has shown that there are still deficiencies that affect its reliability. Wenzhou Yikun Electric Co., Ltd. has introduced and digested advanced foreign technology, and independently developed the CTY-4 spring energy storage hydraulic operating mechanism, which is superior to the HMB-4 mechanism in terms of design principles and structure. With highly simplified technology, it has achieved excellent and reliable performance.

Main technical parameters:
1. Rated operating oil pressure: 43.5Mpa
2. Rated pressure energy storage piston stroke: 85 ± 1mm
3. Recloser locking pressure energy storage piston stroke 77.5 ± 0.5mm
4. Closing locking pressure energy storage piston stroke 51 ± 0.5mm (48 ± 0.5mm)
5. Opening locking pressure energy storage piston stroke 38 ± 0.5mm (34 ± 0.5mm)
6. Oil pump starting pressure, energy storage piston stroke 82 ± 0.5mm
7. Stop oil pump, pressure storage, piston stroke 85 ± 0.5mm
8. When the safety valve is activated, the stroke of the energy storage piston is 88 ± 0.5mm
9. When the safety valve returns, the stroke of the energy storage piston is 86 ± 0.5mm
10. Working cylinder piston output stroke 205 ± 1mm (230 ± 1mm)
11. The closing operation power when the closing locking pressure is �� 2300J (adjustable)
12. The power required for the opening and locking pressure during the opening operation is �� 5300J (adjustable)
13. Rated operating sequence 0-0.3s - CO -180s - CO
14. Starting from the power command - working cylinder piston action time: closing �� 20ms, opening �� 15ms
15. Switching control voltage (DC): 220V Switching control current (DC):<0.5A
16. Rated voltage of energy storage DC motor 220V
Rated power of energy storage DC motor 750W
17. The energy storage time from zero pressure to rated oil pressure is �� 150s
18. Mechanical operation life 10000 times
19. Operating mechanism weight 310kg

CTY type spring energy storage hydraulic operating mechanism

[Spring operating mechanism]CT248 type spring operated mechanism

2026-6-16 13:57:42

CT248 type spring operated mechanism

[Spring operating mechanism]CT17, CT17S, CT17G type spring operated mechanisms CT17 CT17S CT17G

2026-6-16 13:57:34

CT17, CT17S, CT17G type spring operated mechanism

[Spring operating mechanism]CT��- type spring operated mechanism

2026-6-16 13:57:25

Overview
The CT �� - type spring lifting mechanism is an improved mechanism based on the Japanese Mitsubishi VPR indoor high-voltage vacuum circuit breaker. It is a newly designed simplified and integrated spring operating mechanism to achieve miniaturization, high reliability, and maintenance free of the circuit breaker. The structure of the mechanism is more reasonable, the number of components is reduced, and the action is more reliable. All grinding parts are lubricated with long-term grease or oil-free bearings, greatly improving the reliability and service life of the operating mechanism.
This institution is used for indoor high-voltage vacuum circuit breakers ranging from 10KV to 35KV, and its closing power is equivalent to other types of vacuum circuit breakers. Its performance meets the requirements of GG1984 "AC High Voltage Circuit Breakers" and this product's "Technical Conditions", and all indicators meet or exceed the "ICP" standard, and it has fully passed the type test accepted in the high-voltage quality supervision inspection.

Main technical parameters
The specifications of the institution and the data of the main components that match it:

specification	Weight (kg)	Volume height x width x depth (mm)	Electric motor input power (W)	Closing spring	Match the breaking current of the vacuum circuit breaker (A)
CT��	sixteen point five	417×292×174	ninety	��7	thirty-one point five

Main technical parameters of CT �� type spring operating mechanism:

Rated working voltage (V)	DC220	DC110
Rated working current (A)	three point two	six point three
Normal closing operating voltage range	85% to 110% rated working voltage
Normal voltage range for circuit breaker operation	65% -120% of the rated working voltage can be reliably disconnected, and disconnection is not allowed when the rated working voltage is less than 30%
Operating angle of the output shaft of the mechanism	23°-26°
Mechanical lifespan for operating circuit breakers	30000 times

Outline and installation dimensions of spring operated mechanism

Note: If the user has special requirements, they can be determined through negotiation.

CT - �� type spring operated mechanism

[Spring operating mechanism]CT25�� Type Operating Mechanism

2026-6-16 13:57:17

Overview
This product is specially designed for FZ25-12 indoor high-voltage vacuum load switch, which replaces the original one with a separate one, making installation convenient and maintenance simple This product uses both electric and manual operation methods for energy storage and closing. There are two ways to open the circuit: by using an electromagnetic switch or a manual button. The mechanical lifespan is over 10000 times

Main technical parameters
1. The opening electromagnet powered by an independent power source adopts a spiral tube electromagnet, and its technical parameters are shown in the table below:

model	rated voltage	Rated voltage output power	Normal operating voltage range
53ZY-CJDO1B	-220V	40W	85% -110% rated voltage

If the user needs AC power supply, a full wave rectification power supply (bridge stack) is used to rectify and supply the energy storage motor for operation.
2. The opening electromagnet powered by an independent power source adopts a spiral tube electromagnet, and its technical parameters are shown in the table below:

Rated working voltage (V)	-220	-110	-220	-110	-48
Rated working current (A)	two point six seven	six	two point eight two	five point eight five	nine point six
Rated electrical rate (W)	<587	six hundred and sixty	six hundred and twenty	<643.5	four hundred and sixty point eight
Coil resistance value at 20 �� (��)	30±3	6.1±0.6	78±7.8	eighteen point eight	five
Normal operating voltage range	65% -120% of the rated working voltage should be reliably tripped, Do not disconnect when the rated operating voltage is less than 30%

3. The output of the institution is 60-80J;
4. The working angle of the output shaft of the mechanism is about 44 degrees.
5. CT25 spring operated mechanism can be classified into two types based on installation and operation methods: front mounted side operation and reverse mounted side operation.
Outline and Installation Hole Diagram

Note: If users have special requirements, they can negotiate with our factory to determine.

CT25 �� type operating mechanism

[Spring operating mechanism]CTA7,AV3 type spring operated mechanism

2026-6-16 13:57:08

Overview
The 3AV3 and CTA7 connected spring operating mechanism is specifically designed to operate the 35KVR car style switchgear ZH85-40.5 indoor high-voltage vacuum circuit breaker. Its performance meets the requirements of GB1984 "AC High Voltage Circuit Breaker" and the "Technical Conditions" of this product, and all indicators meet or exceed the "ICP" standard.

There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage. There are two types of opening operations: electromagnetic opening and manual button operation; There are two types of closing operations: closing electromagnet and manual button operation.

The specifications and matching components of the institution are shown in Table 1

specification	weight	volume Height x Width x Depth	Electric power machine input power	Closing spring mm	Match vacuum circuit breaker Breaking current KA
3AV3	thirty-seven	630×380×410	two hundred and thirty	��12	25, 31.5
CTA7	thirty-four	524×380×450	two hundred and thirty	��12	25, 31.5

Main technical parameters
The energy storage motor adopts single-phase permanent magnet DC motor, and the basic technical parameters are shown in the table below;

model	ZYG-66
Rated working voltage (V)	-220, -110
Rated input power of electric motor (W)	two hundred and thirty
Normal operating voltage range	85% -110% rated working voltage
Rated working voltage energy storage time (S)	��15

The closing electromagnet adopts a spiral tube electromagnet, and its technical parameters are shown in the following table;

model	-110	-220
Rated working voltage (V)	one point zero five	zero point nine six
Rated electrical power (W)	one hundred and fifteen	two hundred and eleven
Coil resistance value at 20 �� (��)	105±3	230±5
Normal operating voltage range	85% to 110% rated voltage

The opening electromagnet powered by an independent power source adopts a spiral tube electromagnet, and its technical parameters are shown in the table below:

Rated working voltage (V)	-110	-220
Rated working current (A)	one point zero five	zero point nine six
Rated electrical power (W)	one hundred and fifteen	two hundred and eleven
Coil resistance value at 20 �� (��)	105±3	230±5
Normal operating voltage range	65% -120% of the rated working voltage should be reliably tripped, and tripping is not allowed when the rated working voltage is less than 30%

Installation Position Diagram of CTA7 and AV3 Spring Operating Mechanism

Note: If the user has special requirements, they can be determined through negotiation.

[Spring operating mechanism]SS2-�� D Single spring operating mechanism

2026-6-16 13:57:00

SS2- �� D Single Spring Operating Mechanism Model and Its Meaning

Scope of use:

SS2- �� D single spring operating mechanism is the operating mechanism of FLN36B-12D/T630-25 indoor AC high-voltage sulfur hexafluoride load switch, suitable for XGN15-12 box type fixed AC metal enclosed switchgear, especially for compact box transformers, used as the operating mechanism of load switches
Operating standards:
The single spring mechanism is a three position operating mechanism that controls the closing �� opening �� grounding of the load switch. The angle of the output shaft of this mechanism is "80 °+80 °". When in the opening position, rotating 80 ° clockwise is the closing of the load switch, and rotating 80 ° counterclockwise is the closing of the grounding switch

Appearance and installation dimensions:

[Spring operating mechanism]CT19BN(W) type spring operated mechanism

2026-6-16 13:56:51

CT19BN (W) type spring operated mechanism
Overview
The CT19BN (W) type spring operating mechanism is a strengthened, improved, and perfected version of the original CT19 type spring operating mechanism for 35KV vacuum circuit breakers. The T19BW model can be used to operate various outdoor column mounted 35KV (ZW7) and other vacuum circuit breakers with equivalent closing power, while the CT19BN can operate indoor 35KV (ZN23) vacuum circuit breakers and other vacuum circuit breakers with equivalent closing power. Its performance meets the requirements of GB1984 "AC High Voltage Circuit Breaker" and the "Technical Conditions" of this product, and all indicators meet or exceed the "IEC" standards.
There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage; There are three types of opening operations: opening electromagnet, overcurrent trip electromagnet, and manual button operation; There are two types of closing operations: closing electromagnet and manual button operation.

Main technical parameters:

The specifications and matching components of the institution are shown in the following table:

specification	Weight (kg)	Volume height X width X depth (mm)	Electric motor input power (w)	Closing spring (mm)	Match the breaking current of the vacuum circuit breaker (kA)
CT19BN	forty	440X360X160	two hundred and fifty	��10	twenty
CT19BW	forty-five	550X360X160	two hundred and fifty	��10+��6	twenty

2. The closing and opening electromagnet adopts a spiral tube electromagnet, and its technical parameters are shown in the following table:

Rated working voltage (V)	~110	~220	~380	-110 combined	-110 points	-220 combined	-220 points
Rated working current (A)	four point three	three point eight		two point three	four	1.16	two
Rated electrical power (W)	<437	<836		<253	<440	<255	<440
Coil resistance value at 20 �� (��)	8.5±0.5	19.2±3		47+2.8	27.5±1.7	190±11	106±6
Normal closing operating voltage range	85%~110 rated working voltage
Normal voltage range for circuit breaker operation	65%~120% of the rated working voltage should be reliably tripped, and tripping is not allowed when the rated working voltage is less than 30%

Appearance and installation dimensions

CT19BN (W) type spring operated mechanism

[Spring operating mechanism]CT17-40.5 type spring operated mechanism

2026-6-16 13:56:42

The CT17-40.5 spring operated mechanism can be used to operate 40.5kV series vacuum circuit breakers and SF6 with equivalent closing power. Use circuit breakers, low oil circuit breakers, etc. The product performance meets the requirements of GB1984-89 "AC High Voltage Circuit Breaker" standard and product technical specifications.

The CT17-40.5 spring operated mechanism has both electric energy storage and manual energy storage. There are two types of closing operations: closing electromagnet and manual button operation. There are three types of opening operations: opening electromagnet, overcurrent trip electromagnet, and manual button operation. It can also be opened and closed slowly. The output shaft is located at the lower back, and the mechanism can be installed vertically or inverted. It can also be installed in any direction. Providing various parameters for different circuit breakers makes connection and coordination very convenient.

This mechanism is based on the CT17 spring operated mechanism, widely absorbing the advantages of similar advanced products at home and abroad, and combining with the actual situation to overcome the shortcomings of current similar mechanisms, designed with the latest concept. The mechanism has advanced principles and high energy storage efficiency. Low noise and smooth operation; Compact structure, high closing power, small size, light weight, and long service life.

Main technical parameters:

serial number	project		unit	Technical data
one	Closing power			Used for 40.5KV/20KV, 25KV, 31.5KV, 40KV
one	Closing power		J	350~500
two	store can electricity machine	model		Permanent magnet DC motors ZYJ220-66, ZYJ110-66
		Rated working voltage/current		1.6 3.2
		Rated output power	W	one hundred and sixty
		Energy storage time	S	��15
		Working voltage range		85-110% rated voltage
three	combine, synthesize part gate electricity magnet iron	Rated working voltage	V	��110V��220V��380V��-220V��-110V
		Rated working current (short-term)	A	5.6 4.5 2.1 2.3 4.5
		Coil resistance at 20 ��	��	60 ± 0.3 23 ± 1.5 80 ± 4 96 ± 5.4 23 ± 1.35
		Working voltage range		Closing electromagnet 85-110%; Opening electromagnet 65-120%, less than 30% cannot be opened for 3 consecutive times
four	auxiliary help open close	model		F11-12III/L
		Frequently open touch points	Correct	six
		Number of normally closed contacts	Correct	six
		Rated breaking and closing current	A	AC12.5A�� DC220V 4A��DC110V 8A
five	Mechanism output shaft working angle		degree	40~50
six	Number of institutional lifespan cycles		time	ten thousand
seven	Closing time of circuit breaker		S	0.030��0.060
seven	Opening time of circuit breaker		S	0.015��0.050
eight	One reclosing without current gap time		S	zero point three
nine	Secondary circuit working frequency withstand voltage for 1 minute		V	two thousand
ten	Institution weight		KG	thirty-nine
eleven	Rated current of overcurrent trip electromagnet		A	1.3, 5, 7.5, 10

CT17-40.5 type spring operated mechanism

[Spring operating mechanism]CT30 type spring energy storage operating mechanism

2026-6-16 13:56:34

The CT30 type spring energy storage operating mechanism is suitable for installing multiple models of ultra-high voltage self energy sulfur hexafluoride circuit breakers ranging from 110 to 252KV. The product's technical performance indicators meet the requirements of GB1984 "AC High Voltage Circuit Breakers", DL402-9 "Technical Conditions for Ordering AC High Voltage Circuit Breakers" and other standards for operating mechanisms.

The operating mechanism has superior performance and a simple and mature structure. The power can be adjusted freely between 2400 and 4200 joules according to the input power requirements of the circuit breaker. A dedicated buffer device is designed to reduce the rebound during opening and closing and reduce the noise during the opening and closing process. The opening and closing time of the operating mechanism is stable with little dispersion. All control electrical components are made of international famous brand products such as ABB, Schneider, Phoenix, etc. The operating mechanism has been running in the power grid distribution network, with stable and reliable performance.

Mechanical characteristic parameters

The main mechanical characteristic parameters of the operating mechanism are shown in the following table:

serial number	Project		Unit	Data	Remarks
one	Control voltage of opening and closing coils		V	DC110/DC220	According to the ordering requirements
two	Opening coil current		A	3.67/3.28
three	Closing coil current		A	3.67/3.28
four	Motor voltage		V	DC220 AC220	According to the ordering requirements
five	Motor power		W	six hundred
six	motor current		A	5.5/2.7
seven	Motor speed		r.p.m	five hundred and thirty
eight	heater	voltage	V	AC220	According to the ordering requirements
eight	heater	power	W	100(250)	According to the ordering requirements

CT30 type spring energy storage operating mechanism

[Spring operating mechanism]CT14 type spring operated mechanism

2026-6-16 13:56:25

I. Overview
The CT14 spring operated mechanism is an outdoor type, suitable for LW8-40.5 outdoor high-voltage SF6 circuit breakers, and can also be used with other circuit breakers with equivalent closing power. Its performance meets the requirements of GB1984-89 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product. The main indicators meet or exceed the IEC standards.
The energy storage methods for the closing spring of the CT14 spring operating mechanism include motor energy storage and manual energy storage; There are also two types of opening and closing operations: electric (electromagnetic) and manual.

CT14 type spring operated mechanism

Installation dimension diagram

2�� Main technical parameters
1. Energy storage motor: adopts a single phase AC/DC dual-purpose series excited motor, and its technical data is shown in the table:

model	HDZ-19903A	HDZ-29903A
Rated working voltage (V)	-110	��two hundred and twenty
Rated working current (A)	ten	seven point five
Rated electrical power (W)	nine hundred and ninety	nine hundred and ninety
Normal operating voltage range	85% to 110% rated working voltage
Energy storage time under rated working voltage (S)	��15

2. The manual energy storage operation force is less than 370N
3. Closing electromagnet: Adopting a spiral tube electromagnet, its technical data is shown in the table:

Rated working voltage (V)	��380	��220	-220	-110	-48
Rated working current (A)	two	three point five	two point three	three point five	nine point five
Rated electrical power (W)	six hundred and ten	six hundred and ten	three hundred and eighty	three hundred and ninety	four hundred and sixty
Coil resistance value at 20 �� (��)	eighteen point six	eight point three	ninety-five point three	thirty-two	five
Normal operating voltage range	85% to 110% rated working voltage

CT14 type spring operated mechanism

[Spring operating mechanism]CT21 series spring operated mechanism (for load switch)

2026-6-16 13:56:17

Overview
The CT21 type (for load switches) spring operated mechanism can be used to operate ZNF �� -10/630 outdoor high-voltage vacuum load switches, 3-63KV AC high-voltage load switches, and other load switches with equivalent closing power. Its performance complies with the latest design of our factory's improved electric mechanism GB3804CT23 series, using permanent magnet DC motor and sprocket transmission energy storage, with smooth operation, high reliability, good mechanical performance, and long service life; The manual energy storage handle is installed inside the mechanism body, avoiding the leakage of water in the original component. Additionally, the pull ring is located at the lower part of the mechanism, making it more aesthetically pleasing and suitable for use in new and old outdoor 10KV column vacuum circuit breakers. Three types of manual button operation; There are two types of closing operations: closing electromagnet and manual button operation. Method. The machinery was ordered 10000 times.

Main technical parameters of CT21 series spring operated mechanism (for load switch)
1. The energy storage motor adopts a permanent magnet single-phase DC motor, and its technical parameters are shown in the table:

model	rated voltage	Rated output power rate	Normal operating voltage
53ZY-CY	-220	��30W	85% to 110% rated voltage

2. The opening electromagnetic wire powered by an independent power supply is used, and the technical data is shown in the table below

Rated working voltage (V)	��220V	��110V	-220V	-110V
Rated working current (A)	two point nine	four point five	two point eight	five point eight five
Rated electrical rate (W)	<638	<494	<616	<643
Coil resistance value at 20C (��)	27±1.6	eight point seven	78±4.78	1.8±1.1
Normal operating voltage range	65% to 120% of the rated operating voltage should be reliably tripped, Do not disconnect when the rated voltage is less than 30%

Installation location diagram

Note: If users have special requirements, they can negotiate with our factory to determine.

CT21 series spring operated mechanism (for load switch)

[Spring operating mechanism]CT24 type spring operated mechanism

2026-6-16 13:56:08

The CT24 spring mechanism can be used to operate 110KV self powered SF6 circuit breakers, and its performance meets the requirements of GB1984-89 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product. All indicators meet or exceed the relevant standards in IEC56 "High Voltage AC Circuit Breakers".

This institution has two types of energy storage: electric energy storage and manual energy storage. The closing operation includes remote control or on-site closing electromagnetic operation and rotating handle operation; There are two types of opening operations: remote control or local opening solenoid and rotating handle operation.

1. The energy storage motor is a dual-purpose AC/DC motor, with the following technical parameters:

model	84HL01	84HL02
Rated working voltage (V)	��220	��110
Rated input power of electric motor (W)	five hundred	five hundred
Normal operating voltage range	80%-110%Ue	80%-110%Ue
Rated voltage energy storage time	��15s	��15s

2. Manual energy storage uses a specially designed handle with a length of 380mm and a maximum operating force of 200N during energy storage;
3. The closing electromagnet adopts a spiral tube electromagnet, and its technical parameters are as follows:

Rated working voltage (V)	-220	-110
Rated working current (A)	two	two point two
Rated power (W)	four hundred and forty	two hundred and forty-two
Coil resistance at 20 �� (��)	105±5	50±2
Normal operating voltage range	80%-110%

4. The opening electromagnet adopts a spiral tube electromagnet, and its technical parameters are as follows:

Rated working voltage (V)	-220	-110
Rated working current (A)	one point five	two point two
Rated power (W)	three hundred and thirty	two hundred and forty-two
Coil resistance at 20 �� (��)	105±5	50±2
Normal operating voltage range	65%-110%

5. Institutional output angle: 55-57 degrees.
6. The adjustment range of the closing power of the mechanism is large, which can be adjusted between 280kg. m and 364kg. m.
7. Net weight of the institution: 280kg

Outline and Installation Dimensional Diagram of End Hanging Mechanism

Schematic diagram of the appearance and installation dimensions of the mid mounted mechanism

End mounted installation method/Mid mounted installation method:

CT24 type spring operated mechanism

[Spring operating mechanism]CT10,CT10A Spring operated mechanism

2026-6-16 13:55:59

Overview of CT10 and CT10A Spring Operating Mechanisms

The new CT10 spring operating mechanism can be used to operate SN-35 type I and II indoor high-voltage low oil circuit breakers and SF6-35 indoor high-voltage circuit breakers.
The new CT10A spring operated mechanism can be used to operate ZN23-35 indoor high-voltage vacuum circuit breakers. Its performance meets the requirements of "GB1984-89" "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product, and its main indicators meet or exceed the "IEC" standard.
The new CT10/CT10A spring operating mechanism is an improved production based on the original CT10/CT10A. Its stability far exceeds that of the original product, with a mechanical lifespan of no less than 6000 times, which is three times stronger than the original product.

Main technical parameters
The energy storage motor adopts HD2 type, and its technical parameters are shown in Table 1.

model	HDZ-123		HDZ-223		HDZ-323
Rated working voltage (V)	AC	one hundred and ten	AC	two hundred and twenty	AC	three hundred and eighty
	DC		DC		DC
Rated electrical power (W)	��600
Normal operating voltage range	85% to 110% rated working voltage
Energy storage time under rated working voltage (S)	About 8

2. The technical parameters of the opening and closing electromagnet are as follows:

Rated working voltage	-110	-220	-380	-48	-110	-220
Rated working current	five	three		three point seven eight	twenty-three	one point seven seven
rated electric power	five hundred and fifty	six hundred and sixty		one hundred and eighty-one point four	two hundred and fifty-three	three hundred and ninety
Coil resistance value at 20 �� (��)	7.2±1	20.7±2.05		12.7±2.5	47±2.5	124±5
Normal operating voltage range	65% to 120% of the rated working voltage, no disconnection is allowed when the rated working voltage is less than 30%

Installation diagram of CT10 and CT10A spring operating mechanism structure

Structural schematic diagram (note: dimensions in parentheses are CT10A dimensions)
1. Terminal board 2 2 # Overcurrent coil 3 1 # Overcurrent coil 4 Opening coil 5 Auxiliary release device 6 Opening and disconnecting plate
7. Spring hanging plate 8 Hanging spring arm 9 Right angle steel 10 Travel switch 11 Closing half shaft 12 Energy storage shaft 13 Closing connection board
14. Fan shaped plate 15 Opening half shaft 16 Dalian board 17. Opening and closing instructions 18 Hanging spring shaft 19 Auxiliary switch 20 Operating block
21. Roller 22 Energy storage connecting plate 23 Drive pawl 24 Cam 25 Ratchet 26 Energy storage indicator 27 Closing switch
28. Closing coil 29 Closing button 30 Left angle steel 31 Open button 32 Energy storage spring 33 energy storage motor
34. Hanging spring pull down plate 35 Adjusting rod 36 output shaft

CT10, CT10A spring operated mechanism

[Spring operating mechanism]CT8 type spring operated mechanism

2026-6-16 13:55:51

The new CT8 spring operating mechanism can be used to operate SN-I, SN10-10G low oil circuit breakers ZN28-12, ZN28A-12 series indoor high-voltage vacuum circuit breakers and circuit breakers with equivalent closing power.
The energy storage methods of the mechanism closing spring: CT8-I type has two types of energy storage: electric motor energy storage and manual energy storage, CT8-II type only has manual energy storage. The closing operation has two types: closing electromagnet operation and manual button operation. The opening operation has four types: opening electromagnet, overcurrent trip electromagnet or overcurrent trip device, undervoltage trip device and manual button operation.

Technical parameters of CT8 spring operating mechanism
1. The energy storage motor adopts two types of series excited motors, single-phase AC and DC, and their technical parameters are shown in the table below

model	HDZ-113	HDZ-113	HDZ-113
Rated working voltage (V)	Approximately equal to 110	Approximately equal to 220	Approximately equal to 380
Rated input power of motor (W)	<=450
Normal operating voltage range	85% -110% rated working voltage
Rated working voltage energy storage time	Less than 6

2. Manual energy storage operating force: When using a 300mm long energy storage handle, the maximum operating force is less than 20 kilograms.
3. Closing electromagnet: using a spiral tube electromagnet, its technical data

Rated working voltage (V)	-110	-220	-380	-48	-110	-220
Rated working current (A)	Less than 2.5	Less than 1.2	Less than 0.8	twenty-four	one point one	zero point five six
Rated working power (W)	Less than 275	Less than 264	Less than 304	one hundred and fifteen	one hundred and eleven	one hundred and twenty-three
Wire resistance at 20 ° C (W)	16.7±1.67	69±6.9	233±2.33	24.8±1.74	114±1.74	430±30
Normal operating voltage range	65% -120% rated working voltage, no disconnection is allowed when the rated voltage is less than 30%

4. The opening electromagnet and overcurrent release or overcurrent release electromagnet powered by an independent power source adopt a screw type electromagnet, and the undervoltage release adopts a snap on type electromagnet.
(1) Overcurrent release electromagnet (Type 1 release) or overcurrent release electromagnet (Type 2 release): The overcurrent release or overcurrent release electromagnet is powered by a current transformer, and its circuit is closed by the action of the packaged overcurrent relay contacts. The action value is set by the overcurrent relay. Overcurrent trip solenoid - rated currents are 3 amps, 3.5 amps, and 5 amps, respectively
(2) The technical parameters of a type 4 release electromagnetic coil powered by an independent power source are shown in the table:

Rated working voltage (V)	-110	-220	-380	-48	-110	-220
Rated working current (A)	Less than 2.5	Less than 1.2	Less than 0.8	twenty-four	one point one	zero point five six
Rated working power (W)	Less than 275	Less than 264	Less than 304	one hundred and fifteen	one hundred and eleven	one hundred and twenty-three
Wire resistance at 20 ° C (W)	16.7±1.67	69±6.9	233±2.33	24.8±1.74	114±1.74	430±30
Normal operating voltage range	65% -120% rated working voltage, no disconnection is allowed when the rated voltage is less than 30%

*Combination of release devices

Buckling device Combination code	Name and code of release device
	Overcurrent trip magnet one	over-current release two	Undervoltage release device three	Powered by an independent power source Opening electromagnet 4
	Number of release devices
one hundred and eleven	three	0	0	0
one hundred and ten	two	0	0	0
one hundred and thirteen	two	0	one	0
one hundred and fourteen	two	0	0	one

Schematic diagram of CT8 structure

CT8 type spring operated mechanism

[Spring operating mechanism]CT14G(DW17-35) type spring operated mechanism

2026-6-16 13:55:42

The CT14G spring operating mechanism is independently developed and researched by Wenzhou Gelite Electric Co., Ltd. This product is mainly used in conjunction with LW outdoor SF6 circuit breakers. The product performance meets the requirements of GB1984-89 "AC High Voltage Circuit Breaker" standard and product technical specifications. The CT14G spring operating mechanism has both electric energy storage and manual energy storage modes; There are two operation modes for closing: closing electromagnet and manual button; There are three operation modes for opening: opening electromagnet, manual button, and overcurrent trip electromagnet. The CT14G spring operating mechanism adopts a clamp plate structure, which absorbs the advantages of similar advanced products at home and abroad, and overcomes the shortcomings of current similar products by combining with the actual situation of LW8 circuit breaker, and is designed with a novel concept. The mechanism adopts a rear top corner output, which drives the circuit breaker to pull down when the mechanism is closed, achieving the goal of saving closing power. At the same time, this institution also has the advantages of smooth operation, compact structure, light weight, small size, low noise, and long service life. The power of the energy storage motor in the mechanism shall not exceed 30W. The current of the "open" and "close" brake coils in the mechanism shall not exceed 2A.

The mechanism adopts a 500mm operating handle with a maximum operating force not exceeding 250N. The closing power of the mechanism is 1000-1100 joules.

Structural Installation Diagram CT14G (DW17-35) Spring Operating Mechanism

[Spring operating mechanism]CTB(ZW32) type spring operated mechanism

2026-6-16 13:55:34

1.1 Model and Name
CTB type spring operated mechanism, where CTB-S is a manual operated mechanism and CTB-D is an electric operated mechanism.
1.2 Main purpose and working conditions
This institution is capable of operating ZW32-12 outdoor high-voltage vacuum circuit breakers (designed by Beijing Electric Power Research Institute) and other outdoor or indoor vacuum circuit breakers with equivalent closing power. Its performance meets the requirements of GB1984 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product; The manual operating mechanism has functions such as manual energy storage, manual opening and closing, and overcurrent protection. The electric operating mechanism has functions such as electric motor or manual energy storage, electromagnetic or manual switching, and overcurrent protection. The controller configured for overcurrent protection has surge, delay, and quick break protection functions.

This product is suitable for the following working conditions:
A. The upper limit of ambient air temperature is+40 �� and the lower limit is -45 ��.
B. Altitude not exceeding 2000m. Wind speed not exceeding 35m/s.
C. The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90% (+25 ��).
The daily average water vapor pressure is not greater than 2.2 × 103MPa,
The monthly average is not greater than 1.8 × 103MPa.
D. A place without fire, explosion hazards, serious pollution, corrosion, and severe vibration.

Main Technical Parameters of CTB (ZW32) Spring Operating Mechanism
2.1.1 The energy storage motor adopts a unidirectional permanent magnet DC motor, and its technical data is shown in Table 1:

model	53ZY-CJD01B	53ZY-CJD02B	53ZY-CJD03B	53ZY-CJD04B
Rated working voltage (V)	-220	-110	-48	-24
Rated electrical power (W)	forty
Normal operating voltage range	85%-110%
Rated working current (A)	0.5A	1.0A	1.8A	3.6A
Energy storage time (S)	��8

2.1.2 The manual energy storage operation adopts the energy storage handle matched with the mechanism for normal operation, with an operating force of less than 100N · m.
2.2 The closing/opening electromagnet adopts a spiral tube electromagnet, and its technical parameters are shown in Table 2:

Rated working voltage (V)	-220	-110	-220	-110	-48	-24
Rated working current (A)	three point four	four point four	one point six nine	three point four	six	eleven point five
Rated electrical power (W)	seven hundred and forty-eight	four hundred and eighty-four	three hundred and seventy-two	three hundred and seventy-four	two hundred and eighty-eight	two hundred and seventy-six
Coil resistance value at 20 �� (��)	sixty-five	twenty-five	one hundred and thirty	thirty-three	eight	two point one
Normal operating voltage range	65% -120% of the rated working voltage shall be tripped, and no tripping shall be allowed when the rated voltage is less than 30% Closing 85% to 120% of rated operating voltage

2.3 The technical data of overcurrent release is shown in Table 3:

Rated working current 5A	The DC resistance value of the coil is 2.5 �� at 20 ��
Normal operating current range	Reliable tripping at 90% -110% rated current, Less than 90% of the rated current shall not trip

2.4 Other
2.4.1 Mechanism output rotation angle 40 °

Structural Installation Diagram

Structural diagram of CTB-S type spring operating mechanism

1. Support rod 2 Small gear 3 Energy storage shaft 4 Big gear 5 Hanging spring arm 6 Output crank arm 7 Zhi Zi 8 Opening switch
9. Opening half shaft 10 Overcurrent release 11 Hanging spring shaft 12 Closing spring 13 Cam 14 Spindle 15 Wheel 16 Clutch plate
17. Support pillar 18 clamp

Structural diagram of CTB-S type spring operating mechanism

1. Support rod 2 Electric motor 3 Small gear 4 Energy storage shaft 5 Big gear 6 Hanging spring arm 7 Output crank arm 8 Zhi Zi
9. Opening switch 10 Opening half shaft 11 Release device 12 Hanging spring shaft 13 Closing spring 14 Closing half shaft 15 Closing switch
16. Spindle 17 Wheel 18 Plywood 19 Closing release 20 Support pillar 21 clamp

[Spring operating mechanism]CT19BW/BN type spring operated mechanism

2026-6-16 13:55:24

CT19BW/BN type spring operated mechanism can be used to operate 35KV vacuum circuit breakers, SF6 circuit breakers with equivalent closing power, low oil circuit breakers, etc. The product performance meets the requirements of GB1984-89 AC high-voltage circuit breaker standards and product technical conditions.
The CT19BW/BN spring operated mechanism has two types of energy storage: electric motor energy storage and manual energy storage. There are two types of closing operation: closing electromagnet and manual button. There are three types of opening operation: opening electromagnet, overcurrent trip electromagnet, and manual button.

The CT19BW/BN type spring operated mechanism is based on CT19 and widely absorbs the advantages of similar products at home and abroad. Combining with the actual situation, it overcomes the shortcomings of current similar products and is designed with the latest concept. This mechanism adopts a front upper output, reducing many mechanical losses. Compared with other similar products, it has the characteristics of low noise, smooth operation, compact structure, small volume, light manual energy storage, and long service life.

Environmental conditions for use
1. Environmental temperature: not higher than+40 ��, not lower than -25 �� (the upper limit of ambient air temperature during storage and transportation is+40 ��, and the lower limit is -40 ��);
2. Altitude: not exceeding 1000m;
3. Relative humidity: The daily average is not more than 95%, and the monthly average is not more than 90% (+25 ��),
Saturated vapor pressure: daily average not exceeding 2.2 × 10-3Mpa, monthly average not exceeding 1.8 × 10-3Mpa;
4. There is no fire or explosion hazard, no serious pollution, no chemical corrosion, and no frequent severe vibration in the place.

Main technical parameters

The main technical parameters of the institution are shown in the table below.

serial number	project		unit	Technical data
one	Closing power		J	350~500
two	energy storage motor	model		Single phase AC/DC dual-purpose series excited motor HDZ-220B
		Rated working voltage/current		��V/1.6��1.8A
		Rated output power	W	120~160
		Rated time	S	��15
		Working voltage range		85-110% rated voltage
three	Combination and division Electric switch magnet	Rated working voltage	W	��110V ��220V 380V -220V -110V
		Rated working current	A	5.6 4.5 2.1 2.03 4.07
		Coil resistance at 20 ��	W	60±0.3 23±1.5 108±5.4 24±1.35
		Working voltage range		Closing electromagnet 85-110%; Opening electromagnet 65-120%, less than 30% cannot be opened for 3 consecutive times
four	assistant switch	model		F11-12��/L
		Frequently open touch points	Correct	six
		Number of normally closed contacts	Correct	six
		Rated breaking and closing current	A	AC12.5A; DC220V 4A,110V 8A
five	Mechanism output shaft working angle		degree	50~55
six	Number of institutional lifespan cycles		S	ten thousand
seven	Closing time of circuit breaker		S	0.030��0.060
seven	Opening time of circuit breaker		S	0.015��0.050
eight	One reclosing without current gap time		S	zero point three
nine	Secondary circuit working frequency withstand voltage for 1 minute		V	two thousand

2. Manual energy storage operating force: Using a 520mm energy storage handle, the maximum operating force is not greater than 150N.
3. The structure and parameters of the closing and opening electromagnet are the same and can be used interchangeably. Its power supply can be independently separated or the same power supply can be used.

CT19BW/BN type spring operated mechanism

[Spring operating mechanism]CT19IV type spring operated mechanism

2026-6-16 13:55:15

CT19-IV type spring operated mechanism can be used to operate 35KV vacuum circuit breakers and SF6 vacuum circuit breakers with equivalent closing power. Use of low oil circuit breakers, etc The product performance meets the requirements of GB1984-89 AC high-voltage circuit breaker standard and product technical conditions
The CT19-IV spring operated mechanism has two types of energy storage: electric motor energy storage and manual energy storage. There are two types of opening operation: closing electromagnet and manual button. There are three types of opening operation: opening electromagnet, overcurrent trip electromagnet, and manual button.
This institution is based on CT19, widely absorbing the advantages of similar products at home and abroad, and combining with the actual situation to overcome the shortcomings of current similar products. It is designed with the latest concept This mechanism adopts a front upper output, reducing many mechanical losses. Compared with other similar products, it has the advantages of low noise, smooth movement, compact structure, small volume, light manual energy storage, and long service life.

Technical parameters of CT19IV spring operating mechanism

serial number	project		unit	technical parameters
one	Closing power		J	350~500
two	store can electricity machine	model	/	Single phase AC/DC dual-purpose series excited motor HDZ-220B
		Rated working voltage/current	/	��V/1.6��1.8A
		Rated output power	W	120~160
		Rated time	S	��15
		Working voltage range	one	85-110% rated voltage
three	combine, synthesize part gate electricity magnet iron	Rated working voltage	V	`��110V ��220V ��380V -220V -110V
		Rated working current (short current)	A	5.6 4.5 2.1 2.03 4.07
		Coil resistance at 20 ��	ohm	60±0.3 23±1.5 80±4 108±5.4 27±1.35
		Working voltage range	/	Closing electromagnet 85-110%; Opening electromagnet 65-120% Less than 30% cannot be disconnected for 3 consecutive times
four	auxiliary help open close	model	/	F11-12��/L
		Frequently open touch points	Correct	six
		Number of normally closed contacts	Correct	six
		Rated breaking and closing current	A	AC12.5A; DC220V 4A,110V 8A
five	Mechanism output shaft working angle		degree	50~55
six	Number of institutional lifespan cycles		S	ten thousand
seven	Circuit breaker closing current		S	0.030��0.060
seven	Circuit breaker opening current		S	0.015��0.050
eight	One reclosing without current gap time		S	zero point three
nine	Secondary circuit working frequency withstand voltage for 1 minute		V	two thousand
ten	Institution weight		Kg	thirty-nine
eleven	Rated current of overcurrent trip electromagnet		A	3.5,5,7.5,10
twelve	line Cheng open close	model	/	LX18-11MB(DC) LXW18-11B(AC)
		Number of normally open connections	Correct	two
		Number of normally closed connections	Correct	two
		Rated switching current	A	AC16 DC10
		Rated working current	V	AC380 DC220
thirteen	pick up line end child row	model	/	TB2510L 600V 25A
		Number of connectors	a	twenty-four
		By rated current	A	twenty-five
fourteen	Overall dimensions		mm	370×535×177

Structure Overview

CT19IV type spring operated mechanism

[Spring operating mechanism]CT19A,CT19B type spring operated mechanism

2026-6-16 13:55:07

Overview
The CT19 spring operated mechanism can be used to operate various types of ZN28 indoor high-voltage vacuum circuit breakers with breaking currents of 20KA, 31.5KA, and 40KA, or to operate other types of vacuum circuit breakers with equivalent closing power.
The CT19 produced by our factory is mainly divided into two types: fixed cabinet (CT19B) and handcart (CT19A). The CT19B model is an improved version based on the miniaturization of the CT19A model, with more stable and reliable mechanical properties.
There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage. There are four types of opening operations: opening electromagnet, overcurrent trip electromagnet, manual button, and undervoltage trip electromagnet.

Technical parameters of CT19A and CT19B spring operated mechanisms
1. The energy storage motor adopts a permanent magnet DC motor, and its technical parameters are shown in the table below

model	66ZY-CJ01	66ZY-CJ11
Rated working voltage (V)	one hundred and ten	two hundred and twenty
Rated input power of motor (W)	70-150
Normal operating voltage range	85% -110% rated working voltage
Rated working voltage energy storage time	<=12

*If users need to use AC power for energy storage, they can add a full wave rectifier power supply (bridge stack) to supply the energy storage motor for operation
When using a 400mm long energy storage operating handle for manual energy storage, the operating force should not be less than 140N
3. The closing electromagnetic adopts a spiral tube electromagnetic coil, and its technical parameters are shown in the table below

Rated working voltage (V)	-110	-220	-380	-48	-110	-220
Rated working current (A)	five	three		three point seven eight	twenty-three	one point seven seven
Rated working power (W)	five hundred and fifty	six hundred and sixty		one hundred and eighty-one point four	two hundred and fifty-three	three hundred and ninety
Wire resistance at 20 ° C (W)	7.2±1	20.7±2.5		12.7±2.5	47±2.5	124±5
Normal operating voltage range	85% -110% rated working voltage

4. The opening electromagnet and overcurrent tripping electromagnet powered by an independent power source adopt a screw type electromagnet.
(1) The overcurrent trip electromagnet is powered by current mutual inductance, and its circuit relies on the action of the packaged overcurrent relay contacts to close. The action value is set by the current relay. The rated current of the overcurrent trip electromagnet is 5A, and the pure resistance is 2.6 ± 0.5W (the coil is connected to the bridge stack, eliminating inductive reactance).
(2) Technical parameters of the opening electromagnet powered by an independent power source (see table below) 1. The energy storage motor adopts a permanent magnet DC motor, and its technical parameters (see table below)

Rated working voltage (V)	-110	-220	-380	-48	-110	-220
Rated working current (A)	five	three		three point seven eight	twenty-three	one point seven seven
Rated working power (W)	five hundred and fifty	six hundred and sixty		one hundred and eighty-one point four	two hundred and fifty-three	three hundred and ninety
Wire resistance at 20 ° C (W)	7.2±1	20.7±2.5		12.7±2.5	47±2.5	124±5
Normal operating voltage range	65% -120% rated working voltage, no tripping below 30% rated voltage

Release combination code	Name and code of release device
Release combination code	Overcurrent release electromagnet (only)	Opening electromagnet (only)
one hundred	one	0
one hundred and ten	two	0
one hundred and eleven	three	0
one hundred and four	one	one
one hundred and fourteen	two	one
four hundred	0	one

Schematic diagram of CT19 structure

Schematic diagram of CT19B structure

CT19A Right Operation CT19A Left Operation

[Spring operating mechanism]CT10-A type spring operated mechanism

2026-6-16 13:54:59

The CT10-A type spring operating mechanism is an improved and reinforced version of the original CT10 type spring operating mechanism, which greatly enhances its mechanical strength and service life.

The CT10-A spring operated mechanism can be used to operate various 35KV circuit breakers and circuit breakers with equivalent closing power, and its performance meets the requirements of "GB1984-89" "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product. The main indicators meet or exceed the IEC standards.
There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage. The closing operation includes two types: closing electromagnet operation and manual button operation; There are two types of opening operations: electromagnetic release and manual button operation; There are two types of electromagnetic release devices: shunt release devices and instantaneous overcurrent release devices.

Environmental conditions for use
1. The ambient temperature shall not exceed+40 �� and shall not be lower than -10 ��;
2. The altitude shall not exceed 1000m;
3. The daily average relative humidity should not exceed 95%, and the monthly average should not exceed 90%;
4. Places without fire, explosion hazards, serious pollution, chemical corrosion, and severe vibration.
1. The energy storage motor adopts HD2 type, and its technical parameters are shown in the table below.

model	HDZ-123		HDZ-223		HDZ-323
Rated working voltage (V)	AC	one hundred and ten	AC	two hundred and twenty	AC	three hundred and eighty
	DC		DC		DC
Rated electrical power (W)	��600
Normal operating voltage range	85% to 110% rated working voltage
Energy storage time under rated working voltage (S)	About 8

2. The technical parameters of the closing and opening electromagnet are shown in the table below.

Rated working voltage	-110	��220	��380	-48	-110	-220
Rated working current	five	three		three point seven eight	twenty-three	one point seven seven
rated electric power	five hundred and fifty	six hundred and sixty		one hundred and eighty-one point four	two hundred and fifty-three	three hundred and ninety
Coil resistance value at 20 �� (��)	7.2±1	20.7±2.05		12.7±2.5	47±2.5	124±5
Normal operating voltage range	65% -120% rated working voltage, no disconnection is allowed when the rated voltage is less than 30%

3. The output angle of the institution is about 51.5 degrees

CT10-A type spring operated mechanism

[Spring operating mechanism]CT��(3AV3) Spring operated mechanism

2026-6-16 13:54:50

The CT �� (3AV3) spring operated mechanism can be used to operate ZN �� 85-40.5 (3AV3) indoor high-voltage vacuum circuit breakers, and its performance meets GB1984-89 "AC High Voltage Circuit Breakers" and the "Technical Requirements" of this product. Its main indicators meet or exceed the "IEC" standards. This institution is an indoor type, with two types of energy storage methods: electric energy storage and manual energy storage. The opening operation includes an opening electromagnet (which can be equipped with an overcurrent release) and three types of manual button operation.
There are two types of closing operations: closing electromagnet and manual operation. The surface of the mechanism is treated with anodic electrophoretic paint, which has extremely high anti-corrosion performance.

Main technical parameters of CT �� (3AV3) spring operating mechanism

1. The technical parameters of the energy storage motor are as follows: (see table below)

model	rated voltage		Rated output power	Normal operating voltage
ZYG-66	-110V	-220V	��230W	85% to 110% rated voltage

2. The technical parameters of the opening and closing electromagnet are as follows:

Rated working voltage	-110	��220
Rated working current	one point zero five	zero point nine six
rated electric power	<115	<210
Coil resistance value at 20 �� (��)	105±3	230±5
Normal operating voltage range	65% to 120% of the rated operating voltage should be reliably tripped Do not disconnect when the rated operating voltage is less than 30%

3. The output angle of the institution is about 51.5 degrees

Installation location diagram of 3VA3 dedicated mechanism:

Installation dimension diagram of CT �� (3AV3) spring operating mechanism:

[Spring operating mechanism]CT20 type spring operated mechanism

2026-6-16 13:54:41

The CT20 spring operated mechanism is used to operate ZW20A outdoor vacuum circuit breakers with 12KV/25KA and below, as well as other circuit breakers with equivalent closing power. The spring operated mechanism has the characteristics of compact structure, small size, and low input power. It can be used for electric energy storage, electric opening and closing, and also has manual energy storage, manual opening and closing functions.

[Spring operating mechanism]VS1 Spring operated mechanism

2026-6-16 13:54:33

Overview
The VS1-12 (ZN63A) series vacuum circuit breaker is an indoor high difficulty voltage switch with a rated voltage of 12kv for three-phase AC 50Hz. It is a product manufactured with technology introduced from Xi'an Senyuan Company. The product can be used for the protection and control of electrical facilities in industrial and mining enterprises, power plants, and substations. Our institution is equipped with VS1-12 vacuum circuit breakers.

Usage environment
The temperature of the environment should not exceed 40 �� and should not be lower than -15 �� (storage and transportation are allowed at -30 ��)
Altitude not exceeding 1000m;
The daily average relative humidity of the air shall not exceed 95%, and the monthly average shall not exceed 91%;
The daily average value of saturated steam shall not exceed 2.2kPa, and the monthly average value shall not exceed 1.8kPa;
The seismic intensity does not exceed level 8;
A place without fire, explosion, serious pollution, chemical corrosion, and severe vibration.

Main technical parameters of VS1 spring operating mechanism

3.1 The operating mechanism of the circuit breaker adopts a permanent magnet single-phase DC motor for energy storage. The technical parameters of the energy storage motor are shown in Table 1

3.2 The technical parameters of the operating mechanism electromagnet and release are shown in Table 2

Technical Parameter Table 1

model	Rated voltage (V)	Power (W)	Normal working range (V)	Energy storage time at rated voltage (S)
ZY55-1	DC110 DC220	700 (100)	85%-110%	��10

Note: AC and DC power sources are allowed for operating voltage. () Inner circumference 0KA size

Technical Parameters Table 2 of VS1 Spring Operating Mechanism

name	Power (W)	Rated operating voltage (V)	Normal operating voltage range	remark
Closing electromagnet	three hundred and sixty-eight	DC220 DC110	85% -110% rated voltage
Opening electromagnet	three hundred and sixty-eight		65% -120% rated voltage	When the voltage is less than 30%, the snap pin voltage must not be opened
Locking electromagnet	four point eight		85% -110% rated voltage
Overcurrent release Y7 (Y8, Y9)	��			Current 5A

VS1 spring operating mechanism

[Spring operating mechanism]CT23 type spring operated mechanism

2026-6-16 13:54:24

Overview

The CT23 type can be used to operate ZW �� -12 series outdoor high-voltage vacuum circuit breakers and other high-voltage vacuum circuit breakers with equivalent closing power. The operating mechanism has functions such as electric or manual closing, opening, and overcurrent protection, and its mechanical life is 10000 times. The CT23-D series is an improved electric mechanism newly designed by our company, which uses a magnetic DC motor and sprocket transmission for energy storage. It operates smoothly, has high reliability, good mechanical performance, and a long service life; The manual energy storage handle is installed inside the mechanism body, avoiding the leakage of water in the original component. Moreover, due to the pull ring being set at the bottom of the mechanism, the appearance of the mechanism is more beautiful, suitable for new and old outdoor 10KV column vacuum circuit breakers.

Main technical parameters of CT23-D spring operated mechanism (outdoor)

1. The output angle of the institution is 40 ° -45 °
2. The technical parameters of the opening and closing release, overcurrent release, and energy storage motor are shown in the table below
3. After the installation of CT23A-D mechanism and ZM1-10 outdoor high-voltage vacuum circuit breaker, the gap between the roller of the transmission shaft sleeve and the cam should be maintained at about 2MM before the closing spring has stored energy and is ready to close.
4. External dimensions of the mechanism: (1) 460 × 300 × 480mm

Technical Parameter Table 1

project	closing coil	trip coil	Overcurrent coil detachment	energy storage motor
Rated voltage (V)	��220	��220		��220
Rated working current (A)	~��2.67 -��2	~��1.4 -��0.7	five	Power �� 200W A-D Power 70W
Elegant work or current range	~85% -110 rated voltage -80% -110% rated voltage	~65% -120 rated voltage (Less than 30% cannot be tripped)	Reliable when the rated current exceeds 100% When the opening is less than 90%, it shall not trip	± 10% rated voltage

Installation location diagram

CT23 type spring operated mechanism

[Spring operating mechanism]CTS series spring operated mechanism CTS-�� CTS-�� CTS-��

2026-6-16 13:54:15

CTS series spring operated mechanism

CTS-I, CTS-II, and CTS-III spring operated mechanisms are specifically designed for LW3-12 modelsThe use of sulfur hexafluoride circuit breakers meets the requirements of GB1984 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product, and all indicators meet or exceed the "IEC" standards.
There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage; There are three ways to operate the circuit breaker: the circuit breaker electromagnet, the overcurrent trip electromagnet, and the circuit breaker manual pull ring; There are two ways to close the circuit: closing the electromagnetic coil and closing the manual pull ring.

Main technical parameters of CTS series spring operating mechanism

1. Energy storage motor

model	HDZ-21503A
Rated working voltage (V)	��110	��220
Rated input power of motor (W)	one hundred and fifty
Normal operating voltage range	85% to 110% rated working voltage
Rated working voltage energy storage time (S)	��6

2. Opening and closing electromagnet

Normal closing operating voltage range	85% to 110% rated working voltage
Normal voltage range for circuit breaker operation	65% to 120% of the rated working voltage should be reliably tripped, and tripping is not allowed when the rated working voltage is less than 30%

3. The working rotation angle of the output shaft of the mechanism is 35-40 degrees.

Installation size and output shaft size

CTS series spring operated mechanism

[Spring operating mechanism]CT19B series spring operated mechanism

2026-6-16 13:54:07

Overview
The CT19B spring operated mechanism can be used to operate ZN28 series high-voltage vacuum circuit breakers and other types of vacuum circuit breakers with equivalent closing power in various fixed switchgear. Its performance meets the requirements of GB 1984 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product, and all indicators meet or exceed the "IEC" standard.

There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage; There are three types of opening operations: opening electromagnet, overcurrent trip electromagnet, and manual button operation; There are two types of closing operations: closing electromagnet and manual button operation.

The specifications and matching components of the institution are shown in the following table:

specification	weight (kg)	Volume width * width * depth (mm)	Electric motor input power (w)	Closing spring (mm)	Match the breaking current of the vacuum circuit breaker (KA)
CT19B-��	thirty-eight	530370170	seventy	��7.5	twenty
CT19B-��	thirty-eight	530370170	seventy	��8	thirty-one point five
CT19B-��	thirty-eight	530370170	one hundred and twenty	��8+��4	forty

Main technical parameters of CT19B series spring operating mechanism
2. The closing and opening electromagnet adopts a spiral tube electromagnet, and its technical parameters are shown in the following table:

Rated working voltage (V)	~110	~220	~380	-48	-110 combined	-110 points	-220 combined	-220 points
Rated working current (A)	four point three	three point eight		three point three	two point three	four	one point one six	two
Rated electrical power (W)	< 437	< 836		< 158	< 253	< 440	< 255	< 440
Coil resistance value at 20 �� (��)	8.5+-0.5	19.2+-3		15+-0.75	47+-2.8	27.5+-1.7	190+-11	106+-7
Normal closing operating voltage range	85%~110%~rated working voltage
Normal voltage range for circuit breaker operation	65%~120% of the rated working voltage can be reliably tripped, and tripping is not allowed when the rated working voltage is less than 30%.

3. The working rotation angle of the output shaft of the mechanism is 50-55 degrees.
4. Combination and code of release: 110, 100, 111, 114, 1114, 1134, 400

Installation Position Diagram of CT19B Series Spring Operating Mechanism

Note: If the user has special requirements, they can be determined through negotiation.

CT19B series spring operated mechanism

[Spring operating mechanism]CT19 type spring operated mechanism

2026-6-16 13:53:58

The CT19 spring operated mechanism is specifically designed for operating the ZN28 high-voltage vacuum circuit breaker and other high-voltage circuit breakers with equivalent closing power in the 10KV handcart cabinet.

There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage. There are two types of closing operations: closing electromagnet and manual button operation. There are three types of opening operations: opening electromagnet, overcurrent trip electromagnet, and manual button operation.

The specifications of the institution and the main component parameters for its coordination are shown in the table:

specification	weight ��Kg��	volume Height x Width x Depth mm	electric motor Output power (W)	Closing spring mm	Match vacuum circuit breaker for breaking Current (KA)
CD19-��	thirty	420×350×160	seventy	��7	twenty
CD19-��	thirty	420×350×160	ninety	��7.5	thirty-one point five
CD19-��	thirty	420×350×160	one hundred and twenty	��8	forty

Main technical parameters of CT19 spring operating mechanism
1. The energy storage motor is a unidirectional permanent magnet DC motor, with technical parameters as shown in the table:

model	66ZYCJ-11
Rated working voltage (V)	��110	��220
Rated input power of electric motor (W)	70, 90, 120
Normal operating voltage range	85-110% rated working voltage
Rated working voltage energy storage time	��12

2. Technical parameter table for closing and opening electromagnetic coils:

Rated working voltage (V)	��110	��220	��380	-48	-110	-220
Rated working current (A)	five	four point five	-	three point five	two point three four	one point six three
Rated electrical power (W)	<572	<772	-	<160	<257	<359
Coil resistance value at 20 �� (��)	9.50.5	twenty point eight one	-	one hundred and fifty point seven five	four hundred and seventy-two point five	one thousand eight hundred and fifty-seven
Normal closing operating voltage range	80% to 110% rated working voltage
Normal voltage range for circuit breaker operation	65% to 120% of the rated working voltage, no disconnection is allowed when the rated working voltage is less than 30%

Installation location and schematic diagram

CT19 type spring operated mechanism