Reasons for abnormal noise of circuit breaker

If the air switch makes a noise and does not trip, it should be replaced in time. The reason is that the noise is caused by poor contact inside and there is a potential safety hazard if it is used again.

1. The sound indicates that there is leakage but the rated operating current of the leakage protection switch is not reached or exceeded.

2. If it trips, it means that the leakage current reaches or exceeds the rated operating current.

3. There is slight leakage in the circuit. Find out which circuit has leakage and eliminate it.

Extended data:

The leakage protector can be classified according to its protection function, structural characteristics, installation mode, operation mode, number of poles and lines, and action sensitivity. Here, it can be mainly divided into leakage protection relay, leakage protection switch and leakage protection socket.

A noise indicates that there is leakage but the rated operating current of the leakage protection switch is not reached or exceeded. If it trips, it indicates that the leakage current reaches or exceeds the rated operating current. According to the situation you said, there is a slight leakage of electricity in your home's circuit. Find out which road has the leakage and eliminate it.