Circuit breaker comprising an electronic shutter button.

摘要

The circuit breaker comprises a thermistor (18) arranged in a cold zone, close to the front face (16) of the trip device (14) and at least a thermistor (22) placed in a hot zone, at the bottom of the housing (10) of the circuit breaker, in the vicinity of the connection pads (12) of the circuit breaker. The temperature difference measured between the hot and cold, is representative of the heating of the system is protected by the circuit breaker and is used to modify the time delay of a function of time during the closing of the circuit breaker. The trip device can also take into account the difference in temperature existing at the time of a trip.