NS Moulded Case Circuit Breaker

NS moulded case circuit breaker(MCCB, circuit breaker) is one of the most advance type breaker in the world, which adopts international advanced design and manufacture technology. They are suitable for thort circuit and overload protection for circuit of AC 690V 50/60Hz, rated current from 12.5A to 630A. It takes protact effect when mouse cage motors non-frequent start, breaking off working and protecting overload, short circuit and lacking voltage. Ratedcurrentofrelease(A) Thermodynamic release(ambienttemp+40centigrade ) O perationalcurrentofmagneticrelease(A) 1.05In(coldstate) inoperativetime(h) 1.03In(heatstate) inoperativetime(h) In 63 1 <1 10In±20% 63<In100 2 <2 10In±20% 100<In630 3 <2 5-10In±20% Ratedcurrentofrelease(A ) Thermodynamic release(ambienttemp+40centigrade ) O perationalcurrentofmagneticrelease(A) 1.0In(coldstate)operativetime(h) 1.20In(heatstate)operativetime(h) 1.50In(heatstate)operativetime(h) 1.20In(heatstate)operativetime(h) 12.5In400 2 <2 4min 2S<Tp10S 12In±20% T ype R atedcurrent(A) Poles R atedinsulatingvoltage(V) R atedoperatingvoltage(V) Arcingoverdistance(mm) U ltimateshortcircuitbreakercapacity S erviesshortcircuitbreakercapacity O peratingperformance(time) 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-100L 150 150 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-160L 150 150 NS-250D 160,180,200, 225,250 25 25 1000 7000 NS-250N 36 36 NS-250H 70 70 NS-250L 150 150 NS-400D 200,225,250, 300,315,400 35 35 1000 4000 NS-400N 45 45 NS-400H 70 70 NS-400L 150 150 NS-630D 315,350,400, 500,600,630, 35 35 1000 4000 NS-630N 45 45 NS-630H 70 70 NS-630L 150 150 NS-1250D 630,700,800, 1000,1250 50 50 500 2500 NS-1250N 65 65 NS-1250H 85 85 NS-1250L 160 160 NS-1600D 800,1000,1250, 1600 50 50 500 2500 NS-1600N 65 65 NS-1600H 85 85 NS-1600L 160 160