YFM1LE series residual current circuit breaker (hereinafter referred to as circuit breaker)mainly suitable for AC 50Hz, rated voltage of 400V, rated current to 800A distribution network.used to provide indirect contact protection for people, also can be used to prevent theequipment insulation damage, ground fault current caused by the fire hazard. it can be usedto distribute electrical energy and protect the overload and short circuit of the line and powersupply equipment, and can also be used as the infrequent conversion of the line and theinfrequent start of the motor.

The circuit breaker can work normally when either phase of the three-phase power supply is missing.The product conforms to the standard:GB14048.2IEC60947-2