ACB

ACB(circuit breaker,DW45) JY--Enterprise Code W--Air circuit breaker 1--Design number (enterprise) 4000--Frame size rated current 4--Poles (omit for three poles) Application JWY1 (DW45) series air circuit breaker (hereinafter referred to as breaker) is suitable for the circuit of AC50Hz with rated voltage 380V ,690V at rated current 400A 6300A. It is mainly used to distribute electric energy and protect circuits and power-supply equipment from overload, under-voltage, short-circuit and single-phase earthing with intelligentized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure. The breaker is applicable for power stations, factories, mines (for 690V) and modern high-buildings, especially for the distribution system of intelligentized building.This breaker conforms to Iec60947-2 and GB4048.2. The whole series have past CCC certification and CB certification of SEMKO. Main technical parameter: Rated ultimate short circuit breaking capacity(KA) Icu=100KA 400V 80KA 690V Ics=Icw=50KA 690V 40KA 690V Rated current in (A) 3200 3600 4000 Number of poles 3,4 Rated voltage Ue (V) 400V,690V Rated insulation voltage Ui (A) 1000V Rated current of N-pole IN (A) 50%In, 100%In Fixed disconnection time 23-32Ms Intelligent controller Standard type (M) Communication type(H) Operation performance Electric life 500 Mechanical life Non-maintenance 2500 Maintance 10000 Connection pattern Horizontal, vertical