YCW1 Air Circuit Breaker ACB 1.Standard:IEC60947-1,IEC60947-2 2.Rated current:630~6300A 3.Ue: 400, 690V 4.Fixed & withdraw YCW1 Air Circuit Breaker ACB General YCW1 series intelligent air circuit breakers (hereinafter called ACB) are applied for the network circuit of AC 50Hz, rated voltage 400V, 690V and rated current between 630A and 6300A. Mainly used for distributing and protecting the ...