Line circuit-breaker or fault current circuit-breaker for cutting off current exceeding threshold value

摘要

The circuit breaker has a current measurement device (3), an indication device (5) which indicates the measured current value or a difference current and/or an interface device for transferring the measured current or difference current value to a display and/or evaluation device remote from the measurement point. The indication device for current or difference current indication has several light emitting diodes on the front of the circuit breaker. Alternatively, a display or a pointer instrument mounted on the circuit breaker can be used to indicate the current or difference current.