WZSNDQ Electric

When the circuit breaker is usually broken, the moving contact of the circuit breaker is separated from the fixed contact by mechanical method. When the switch is closed, the opposite mechanical motion is used to close the moving contact and the fixed contact. When the load circuit is switched on and off, an arc will occur between the fixed contact and the moving contact. The arc produced by the breaking process is much more serious than the closing process. When the breaking current is very large, especially when the short circuit is broken, the arc is very large, and it is often very difficult to disconnect the circuit.

Scope of application:

Mini circuit breaker has the advantages of advanced structure, reliable performance, strong breaking ability, beautiful and small appearance, etc., mainly used for AC 50HZ or 60HZ, rated voltage below 400V, rated working current below 63A places. It is used for overload and short circuit protection of lighting, distribution lines and equipment of office buildings, residential buildings and similar buildings, and can also be used for infrequent on-off operation and conversion of lines. Mainly used in industrial, commercial, high-rise and residential and other places.