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NS Moulded Case Circuit Breaker
NS Moulded Case Circuit Breaker
 
Application
 
NS Series moulded 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 950V. Suitable for AC 50Hz (60Hz). Rated working voltage 690V or below, rated working current is 12.5A to 630A of circuit and used in distributing electric energy. Non-frequent making and breaking in the normal conditions and protecting when circuit and installation are overload, short circuit and lacking voltage. Rated shell-rack and the breaker whose current is under 400A, take protection effect when mouse cage motor's non-frequent start, breaking off working and protecting form overload, short circuit and lacking voltage. The product conforms to GB14048.2, IEC 60947-2 standards.
 
Main Technical Specifications
 
Type
Rated current
of trip (In A)
Pole
number
Rated insulating
voltage (V)
Rated operating
distance (mm)
Arcing-over
distance (mm)
Uitimate short
circuit breakering
capacity (kA)
Short
circuit breaking
capacity (kA)
Operation
performance
ON OFF
NS-100D
12.5,5,16,20
25,32,40,50
63,80,100
3P
4P
950 ≥90

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
1000
7000
NS-160N
35
35
NS-160H
70
70
NS-160L
150
150
NS-250D
160,180,
200,225,
250
0 25
25
1000
7000
NS-250N
36
36
NS-250H
70
70
NS-250L
150
150
NS-400D
200,225,
250,300,
315,400
25

25

1000
4000
NS-400N
36
36
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
 
Working Conditions
 
Rated current of release(A)
Thermodynamic release(ambient temp+40℃)
Operational current of magnetic
release(A)
1.05In(cold state)inoperation time(h) 1.30In(heat state) operative time(h)
In≥3

< 1
10In±20%
63≥n≥00

< 2
10In±20%
100≥n≥30

< 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≥n≥00
< 2 ≥min 2S<Tp≥0S 12In±20%
 
 
MM
C
C1
C2
C3
C6
C7
C20
C21
G
G1
G4
NS-100/160/250D/N/H/L
29
76
54
108
43
104
34
86
62.5
125
70
NS-400/630D/N/H/L
41.5
116
92.5
184
53
146
46.5
126
100
200
113.5
 
MM
G5
H
H1
H2
H3
H4
H5
H6
H7
K
K4
NS-100/160/250D/N/H/L
104
80.5
161
94
188
160.5
321
178.5
357
17.5
35
NS-400/630D/N/H/L
227
127.5
255
142.5
285
240
480
237
474
22.5
45
 
MM
K2
L
L1
L2
P1
P2
P4
P5
P6
R
R1
NS-100/160/250D/N/H/L
70
52.5
105
140
81
86
111
83
88
14.5
29
NS-400/630D/N/H/L
90
70
140
185
95.5
110
168
107
112
31.5
63
 
MM
R2
R4
R5
R6
R7
R12
R13
¢T
¢T4
(Ue)
NS-100/160/250D/N/H/L
54
108
143
29
58
43
86
6 22
≥2
NS-400/630D/N/H/L
71.5
143
188
46.5
93
63
126
6 32
≥2
 
 
 
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Tel:4008627668 +86-577-62719178  61719176   Fax: +86-577-62779568    E-mail:  export@electrolines.cn    
Add:No.26th,Lingyun Road,Dongfeng Industrial Zone,Liushi Town,Wenzhou City,Zhejiang Province,P.R.China.
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