High Voltage Vacuum Circuit Breaker

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: ZN63
Minimum Order Quantity: 1set
Packaging Details: WOODEN CASE
Delivery Time: 7-15DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Rated Voltage: 3.6KV 6.6KV 7.2kV, 12kV, 24kv Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A
Frequency: 50/60Hz Poles Number: 3
Phase: 3 Phase Medium: Vacuum
Material: Galvanized Sheet Standard: IEC/GB
High Light:

VS1- 12 Vacuum Circuit Breaker


7.2kV Vacuum Circuit Breaker


3150A Vacuum Circuit Breaker

Product Description

1. ZN63(VS1)-12 types 12KV high voltage vacuum circuit breaker VCB


VS1- 12 side-mounted vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 12 kV and frequency of 50 Hz. It is used as protection and control electric appliance due to special vacuum circuit breaker. Superiority, especially suitable for frequent operations requiring rated current or multiple short-circuit currents.

 VS1-12 type side-mounted vacuum circuit breaker is fixedly mounted and is mainly used for fixed switchgear. The circuit breaker can be used alone or in ring power supply, box type or various non-standard power supply. system.


2. Main technical parameters:


NO Item Units Technical parameters
1 Rated voltage kV 12
2 Maximum working voltage kV 12
3 Rated current A 630/1250 630/1250 630/1250/1600
4 Rated short-circuit breaking current kA 20 25 31.5
5 Rated short circuit closing current kA 50 63 80
6 Rated peak withstand current kA 50 63 80
7 4S rated short circuit withstand current kA 20 25 31.5



Rated insulation level Power frequency withstand voltage (before and after rated breaking)





Impact withstand voltage (before and after rated breaking)



9 Rated operation sequence   0-0.3s-Co-180s-Co
10 Mechanical life times 10000
11 Rated short circuit current breaking times times 50
12 Operating mechanism rated closing voltage (DC) V 110,220
13 Operating mechanism rated trip current (DC) V 110,200
14 Contact stroke mm 11±1
15 Overtravel (contact spring compression length) mm 3.5±0.5
16 Three-phase split and close bounce time ms ≤2
17 Contact closing bounce time ms ≤2
18 Average opening speed m/s 1.2±0.2
19 Average closing speed m/s 0.6±0.2
20 Opening time At the highest operating voltage s ≤0.05
At the lowest operating voltage ≤0.08
21 Closing time S 0.1
22 Main loop resistance of each phase μΩ 60 50
23 Dynamic and static contacts allow wear cumulative thickness mm




3. Application

Maximum temperature: +40℃; Minimum temperature:-25℃.

Altitude above sea level: Maximum installation altitude: 2500m.

Humidity: Monthly average humidity 95%; Daily average humidity 90% .

Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

No frequent violent shake.


4. Photo and drawing


High Voltage Vacuum Circuit Breaker 0High Voltage Vacuum Circuit Breaker 1



5. Factory


High Voltage Vacuum Circuit Breaker 3


6. FAQ


1. Technology ensure the quality satisfy international request.

2.Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.

3. For tender cooperation, it is welcome to discuss the detail in between.

4. Some type reports are provided accordingly.


Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197