1.CKW1 (DW45) Intelligent air circuit breaker 2.conform to IEC60947-2,GB14048.2 standards. 3.Rated voltage:400V 4.3/4 poles CKW1 (DW45) Intelligent air circuit breakerMAIN TECHNICAL PARAMETERFrame classing rated current2000A3200A4000A63000ARated insulation voltage 690VRated voltage 400VRated current 630V,800A,1000A,1250A,1600A,2000A,2500A,3200A,4000ARated ultimate short-circuit breaking capacity( ...