1.Application

CMM3 series moulded case circuit breaker is aplicable for the circuit of AC 50/60Hz,rated insulation voltage 690V(CM3-125 500V),rated operating voltage AC 690V or below ,rated operating current 12.5-1 600A, for distribute energy of electric and infrequently making and breaking circuit in normal conditions.The circuit-breakers are provided with the function of the protection against overload, short circuit and under-voltage.The circuit breakers comply with standard of IEC60947-2.The circuit-breakers are double insulating (Inm=250A or above), the control circuit of the accessories is set apart with the main circuit , and doesn't need to open the cover of the circi it hreaker when inctall the arcoscorioe

Specification