... ,10,16,20,25,32,40,50,63A 3.tripping type:C,Dtype 4.overload,short-circuit protection SB1-63 Mini Circuit ... ,25,32,40,50,63APoles1,2,3,4Tripping curveB,C,DStandardIEC60898Electrical life≥6000 timesMechanical life(O-C) ≥20000 times mini circuit breaker