... , CE,CC,ISO9001 certificate 3)timely del NB1-63 circuit breakerStructural Characteristics mini circuit breaker consists of moulded case , operating mechanism , contactor outfire ... and so on .main technical parameterrated current : 1A~32A 1P,2P,3P,4P, 230V/400V 6000A breaking capacity . B , C , ... D tripping type 40A~63A 1P,2P,3P,4P, 230V/400V 4500A breaking capacity , B , C ,D ...