Low voltage circuit breaker

In order to interrupt at least one circuit, a low voltage circuit breaker has a trigger input, so that at least one circuit is interrupted. The trigger input end is connected to an interference arc detection unit. When interference arc appears in at least one circuit, the interference arc detection unit identifies the interference arc and outputs a trigger signal to an output end thereof. The output end leads to the trigger input end of the low voltage circuit breaker so that the low voltage circuit breaker can interrupt the at least one circuit. 为了中断至少一个电路，低压断路器具有触发输入端，从而中断至少一个电路。触发输入端与干扰电弧识别单元连接，该干扰电弧识别单元在至少一个电路中出现干扰电弧时识别出该干扰电弧并且将触发信号输出到其输出端，该输出端通向低压断路器的触发输入端，从而使低压断路器能够中断至少一个电路。