Application

ZMW45 series intelligent conventional circuit breakeris applicable for distribution network of AC50Hz withrated voltage up to and including 690V and rated current400A~6300A, used to distribute electric energy andprotect the power equipment against overload, under-voltage, short-circuit or single-phase grounding fault.This circuit breaker has intelligent protection functionand accurate selective protection, it improves reliabilityof power supply and avoids unnecessary power failure.Meanwhile, it has open type communication interface,it is able to carry out four remote controls, satisfyingrequirements of control center and automatic system.Pulse withstand voltage of this circuit breaker at altitude2000m is 8000V (it can be corrected for different altitudesaccording to the standard, but not over 12000V at most).This circuit breaker also can be used as disconnectorwhen it is prepared without intelligent release or sensor, marked as            .This circuit breaker is in accordance with GB14048.2Low-voltage switchgear and controlgear-Low-voltagecircuit breakers and IEC947-2 Low-voltage switchgearand controlgear-Circuit breakers. 

Model