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Yueqing Ann Electric Co.,Ltd
Tel: +86 577 61787199
Fax: +86 577 61787199
Add: Number 97,Zhen Bei West
Road,Qiligang Town,
YueQing,Zhengjiang,China
E-mail: ann@annelectric.com
Website: www.annelectric.com
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Application
NS series moulded case circuit breaker is one of the most advanced type breakers in the world, which adopt international advanced design and manufacture fechnology. They are suitable for short circuit and overload protection for circuit of AC 690V 50/60HZ, rated current from
Tripping Characteristics of MCCB
Rated Current of
Release(A)Thermodynamic Release
(ambient temp +Operational Current of
Magnetic Release(A)
inoperative time(h)
operative time(h)In≤63
≥1
＜1
63＜In≤100
≥2
＜2
100＜In≤630
≥2
＜2
5
Rated Current of
Release(A)Thermodynamic Release
(ambient temp +Operational
Current of
Magnetic
Release(A)12.5≤In≤400
≥2
＜2
≤4min
S＜Tp≤10S
Main Technical Specifications
Type
Rated Current (A)
Poles
Rated Insulating Voltage(A)
Rated Operating Voltage (A)
Acting Over Distance (mm)
Ultimate short circuit Breaker Capacity
Servies Short Circuit Breaker Capacity
Operating performance(times)
ON
OFF
NS-100D
12.5,
16,
20,
25,
32
,40,
50,
63,
80,
1003,4
950
690
0
18
18
1500
8500
NS-100N
25
25
NS-100H
70
70
NS
150
150
NS-160D
16,
20,
25,
32,
40,
50,
63,
80,
100,
125,
16025
25
1500
7000
NS-160N
36
36
NS-160H
70
70
NS
150
150
NS-250D
160,180,
200,225,
25025
25
1000
7000
NS-250N
36
36
NS-250H
70
70
NS
150
150
NS-400D
200,
225,
250,
300,
315,
40035
35
1000
4000
NS-400N
45
45
NS-400H
70
70
NS
150
150
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