SEMICONDUCTOR CIRCUIT BREAKER

The present disclosure relates to a semiconductor circuit breaker and, more specifically, to a semiconductor circuit breaker having a detachable interface module. The semiconductor circuit breaker according to an embodiment of the present disclosure comprises: a circuit breaker body connected to a main circuit; and an interface module which is independent from the circuit breaker body, wherein the circuit breaker body comprises: a first reception part disposed on the outer surface of the circuit breaker body; and a blocking part including a power semiconductor device connected to the main circuit to block the main circuit when an overcurrent occurs, and the interface module comprises an operation part for controlling the blocking part, and is detachably coupled to the first reception part.