... one of the technique of manufacture development, development new circuit breakers. Its fixed isolation voltage is 690V, is suitable ... frequent motor starter. The Circuit breaker with overload, short circuit protection device, and less voltage protection circuit and power equipment are not ... in(A)Rated voltage Ue(V)(KA)Short-circuit Interrupting capacity Icu/Ics(KA)DCAC250V230V400V440V500VNF30-CW33,5, ...