... . 3,quickly delivery time. 4,all kinds of payment method. Circuit breaker, air break switch Number of Poles:1P,1P+N,2P ... , 20,25, 32, 40,50, 63Breaking Capacity (A):6000, 4500Rated Voltage (V):230/400Tripping curve: B,C,DRated Frequency:50/60HzCircumstance ... :(O-C) no less than 20000 operationsProtection Degree:IP2 Mini Circuit breaker