Application
NS series moulded case circuit breaker/mccb is suitable for using in the circuit of AC 50Hz/60Hz, rated insulating voltage 750V, rated working voltage below 690V, and rated current is 12.5A to 1600A for distributing electric energy,and infrequently off/on under normal condition.The short circuit breaking capacity is 18KA---150KA. Have 1pole,2pole,3pole,4poles.
Specification
|
Type
|
Rated current
(A) |
Poles
|
Rated insulating voltage
(V) |
Rated operating voltage
(V) |
Arcing over distance
(mm) |
Utimate short circuit breaker capacity
|
Servies short circuit breaker capacity
|
Operating performance (times)
|
|
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-50H
|
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
|
315,250,400,
500,600,630 |
35
|
35
|
10004000
|
||||
|
NS-630N
|
45
|
45
|
||||||
|
NS-630H
|
70
|
70
|
||||||
|
NS-630L
|
150
|
150
|
TRIPPING CHARACTERISTICS OF MCCB:
|
Rated current of release (A)
|
Thermodynamic release (ambient temp +40℃)
|
Operational current of magnetic release (A)
|
|
|
1.05In (cold state) inoperative time(h)
|
1.30In (heat state) inoperative time (h)
|
||
|
In≤63
|
≥1
|
＜1
|
10In±20%
|
|
63＜In≤100
|
≥2
|
＜2
|
10In±20%
|
|
100＜In≤630
|
≥2
|
＜2
|
5-10In±20%
|
|
Rated current of release (A)
|
Thermodynamic release (ambient temp +40℃)
|
Operational current of magnetic release (A)
|
|||
|
1.0In (cold state) operative time(h)
|
1.20In (heat state) operative time (h)
|
1.50In (heat state) operative time (h)
|
1.01In (heat state) operative time (h)
|
||
|
12.5≤In≤400
|
≥2
|
＜2
|
4≤min
|
2S＜TP≤10
|
12In±20%
|