NS 3 phase 100a 250a mccb molded case circuit breaker 2018-11-16T14:15:36+00:00

Project Description

NS molded case circuit breaker

NS 3 phase 100a 250a mccb molded case circuit breaker

NS 3 phase 100a 250a mccb molded case circuit breaker is one of new type breakers which our company adopts international advanced design, manufacture technology to develop. The rated insulating voltage is 750V. It is suitable for  circuit of AC 50Hz (60Hz), rated working voltage 690V or below, rated working current  12.5A to 1250A  and used in distributing electric energy.

Ns molded circuit breaker specifications and technical parameters

Type Poles Rated insulating voltage (V) Rated operating voltage (V) ultimated short ciruit breaking capacity (KA) sevice short circuit breaking capacity (KA)
NS-100N 3,4P 750 690 and below 25 25
NS-100H 70 70
NS-100L 150 150
NS-160N 36 36
NS-160H 70 70
NS-160L 150 150
NS-250N 36 36
NS-250H 70 70
NS-250L 150 150
NS-400N 45 45
NS-400H 70 70
NS-400L 150 150
NS-630N 45 45
NS-630H 70 70
NS-630L 150 150
  • Note: 1. The N-pole breake has no portection which closing and opening with the other poles

  • 2. The tyep of thermal magnetic for-400/630 has no four poles

Type rated current (A) Note
100 12.5,16,20,25,32,40,50,63,80,100 T adjustable (0.8-1In)         M adjustable (5-10In)
160 16,20,25,32,40,50,63,80,100,125,160
250 160,180,200,225,250
400 315,350,400
630 400,500,630
1250 800,1000,1250 T adjustable (0.8-1In)         M fixed
1600 1000,1250,1600

NS mccb 3 phase outline mounting dimension

molded case circuit breaker installation dimension
mccb dimension drawing

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