VSM series high-voltage vacuum circuit breakerDetailed product description：

VSM series high-voltage vacuum circuit breaker

1. Scope of use
The ZN63A-12 (VS1-12) series indoor high-voltage vacuum circuit breaker is a three-phase AC 50HZ indoor high-voltage distribution device with a rated voltage of 12KV or below. Can be matched with KYN28-12 (Z) (GZS1) switchgear. Suitable for control and protection of transmission and distribution systems such as power plants and substations, especially in places with frequent operations.

The operating mechanism of the VSM series high-voltage vacuum circuit breaker is a spring energy storage type, which can be used for AC or DC operation and can be used for manual operation.

2. Usage conditions
a) Altitude: not exceeding 1000m;
b) Surrounding air temperature: maximum+40oC, minimum -10oC;
c) Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
d) Water vapor pressure: daily average not exceeding 2.2kPa, monthly average not exceeding 1.8kPa;
e) Places without fire, explosion, severe pollution, chemical corrosion, and severe vibration;

3. Advantages of permanent magnets
·Low number of components and high reliability
·Long lifespan, reaching over 50000 cycles
·The main circuit adopts advanced fixed sealing poles, which have stronger anti pollution ability and are more suitable for harsh environments
·The perfect combination of permanent magnet mechanism and circuit breaker greatly improves the electrical performance of the circuit breaker. Even for high current 40kA/4000A short-circuit breaking, the automatic reclosing operation sequence test passed completely
·Double coil bistable structure, electromagnetic operation, permanent magnet retention
·Low power consumption of opening and closing coils
·No energy storage capacitor
·Maintenance free