NS Moulded Case Circuit Breaker

NS Moulded case circuit breaker NS/SANM3 moulded case circuit breaker (called circuit breaker for short hereinafter) is one of newly-developed circuit breakers designed and made by our company, its design embodies updated craft limited-current principle as well as making craft, with compact structure, full modulization, high disjunction, zero flying arc, and other features. Its insulation voltage is 750V, suitable for wires with AC 50Hz, rated working voltage of 690V and below, rated working current of 630A, to work as unfrequent start. Circuit breaker has overload protection, short circuit protection and owe-voltage protection device, can prevent wires and electric source equipments from being damaged. NS Moulded case circuit breaker spec.: Type SANM3 Rated current (A) Poles Rated insulation voltage (V) Rated operating voltage (V) Arcing over distance (mm) Ultimate short circuit breaking capacity Short circuit breaking capacity Operating performance (times) ON OFF NS-100D 12.5,16,20,25,32, 40,50,63,80,100 3,4 950 690 0 18 18 1500 8500 NS-100N 25 25 NS-100H 70 70 NS-160D 16,20,25,32,40,50, 63,80,100,125,160 25 25 1500 7000 NS-160N 36 36 NS-160H 70 70 NS-250D 160,180,200,225,250 25 25 1000 7000 NS-250N 36 36 NS-250H 70 70 NS-400D 200,225,250,300,315,400 35 35 1000 4000 NS-400N 45 45 NS-400H 70 70 NS-630D 315,350,400,500,600,630 35 35 1000 4000 NS-630N 45 45 NS-630H