... 400V current:1-63A 3.Poles:2 4.Breaking capacity:6/4.5KA... air circuit breaker,MCB ... 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,4P 4.Breaking capacity:4. ... life >6000timesMechanical life 20000 timesTropical ration Treatmen 2(RH95%,at 55°C)Protection degree IP20Service: ...