NS circuit breaker is one of the most advance type breaker ... R ated current (A) Poles R ated insulating voltage (V) R ated operating voltage (V) Arcing over ... short circuit breaker capacity O perating performance (time) ON OFF NS-100D 12.5,16, 20,25,32, 40,50,63 ... ,100, 3,4 950 690 0 Moulded Case Circuit Breaker NS