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YCM2 series moulded case circuit breaker(herein after called circuit breaker)is applied for the power distribution network of
AC 50Hz,rated current from 12.5 to 1600A, rated insulation voltage 800V(Inm=125A to 500V),rated working voltage up to 690V(Inm=125A to 400V)and below, it can be used to distribute electric power and protect power equipment against overload, short circuit and undervoltage.
The circuit breaker can change the circuit and start motor infrequently. the circuit breaker with frame size below 400A takes protective effect when motors infrequently start and protecting against overload, short circuit and lacking voltage.The YCM2 complies with standard of IEC60947-2.