NS Moulded Case Circuit Breaker(MCCB) 1.Pole: 3P, 4P 2.Rated Insulation ... .5~630 NS MCCB (Merlin Gerin Model MCCB) NS series moulded case circuit breaker is one of new type breakers which this ... Working current (A): 12.5, 16, 20, 25, 32, 40, 50, 63.80, 100, 125, 160, 180, 200, 225, 250, 300 ... , 400, 500, 600, 630 Rated Insulation voltage: 750V NS Moulded Case Circuit Breaker