ACBs(Air circuit breakers) DW45 1) Rated current:630-6300A 2) Short circuit breaking capability:80KA, 100KA. 3) IEC-60947 ACBs(Air circuit breakers) DW45 Intelligent universal circuit breaker Rated voltage to 400V/660V Rated current of 400A-6300A MYW1 series intelligent air circuit breakers(hereinafter called ACBS)are applied forthe network circuit of AC 50Hz, rated voltage 400 v, 690V and rated ...