... MCB 4.Material:copper,unti-fire Nylon,silver c65n 1P 230/400V circuit breaker 1.ApplicationThe product is mainly used ... 32,40,63Rated voltage(Un)AC240/415VRated frequency50/60HzTripping curveB,C,DRelease action characteristicsTime delay1.13In>1h Non-trip1.45In< ... life>6000timesMechanical life20000 timesTropical rationTreatmen 2(RH95%,at 55°C)Protection degreeIP20 C65 1P 230/400V circuit breaker