In the process of using the universal circuit breaker, there may be a phenomenon that the trip cannot be tripped, so how to analyze the reason that the universal circuit breaker cannot trip.

Is it due to the accident caused by the trip phenomenon? This is the first thing we have to confirm. The so-called tripping of the accident means that the universal circuit breaker is not caused by the short circuit and the electrical equipment that is carried over. Because the universal circuit breaker can not be closed successfully, the first step is to confirm whether the reason why the universal circuit breaker can not trip is caused by short circuit and overload. Then we will test the universal circuit breaker itself. The reason is whether there is a fault in the current loop. After determining the cause caused by the universal circuit breaker itself, we will remove the circuit breaker for further confirmation.

The following factors may exist for the failure of the universal circuit breaker itself to trip:

First of all, the universal circuit breaker will not be able to close due to the failure of the overvoltage release, so what are the specific aspects?

1. The contact between the switch button on the universal circuit breaker and the contact of the relay is poor or some components are damaged. This will cause the current loop to be unobstructed, and the coil above the trip unit loses its connection with the power supply.

2. The wiring in the current loop is broken or the nut is loose. This will also cause the current loop to be unobstructed, causing the coil on the trip unit to lose its connection with the power supply.

3. The fuse on the protection circuit is faulty, causing the current loop to be unobstructed, causing the coil on the overvoltage release to lose its connection with the power supply.

The above is the reason that several universal circuit breakers cannot trip, because there are too many reasons for this failure, so we will introduce this to you.