... :PC,Copper Function:Protect the circuit from short-circuit and over-load. BKN miniature circuit breaker(mcb,circuit breaker) Technical ParameterSeriesBKNTypeBCDPoles1231234123Rated Voltage(V)240/415Rated Current ... ,20,30,40,50Breaking Capacity(KA)1066Tripping DeviceThemal-coil magnetic Auxiliary switch & alarm switchRated operational current220V 3.5A(AC11 duty)415V ...