Circuit breaker life precaution device

The utility model discloses a circuit breaker life precaution device, precaution device are equipped with microprocessor, microprocessor's signal input part passes through the auxiliary contact switchthat auxiliary contact switch detection circuit connects the circuit breaker body, microprocessor's alarm signal output alarm output indicator signal to alarm lamp unit. The utility model discloses circuit breaker life precaution device, adopt simply, pracality, it is directly perceived, the design of economy, install the precaution device on the low pressure short circuiter, except can the real-time detection circuit breaker open or the state that breaks off, more important is the use number of times and the power -on time that can detect the circuit breaker, use number of times and power -on time to surpass a definite value as low -voltage circuit breaker, the precaution device will send alarm instruction suggestion site work personnel and in time change the circuit breaker, cause bigger loss in order to avoid