... 1 4.Breaking capacity:6/4.5KA... air circuit breaker,MCB circuit breaker,circuit breaker panel The product is mainly used in ... s conformity with GB10963,IEC60898 standards.Main technical data 1.Rated current:1,2,3,4,6,10,16,20,25, ... 32,40,50,63A; 2.Tripping characteristics:B(3-5)In,C(5-10)In ... ,D(10-15)In; 3.No. of pole:1P,2P,3P ...