Overload Current Protection Characteristics
Test Procedure |
Type |
Test Current |
Initial State |
Tripping or Non-tripping Time Limit |
Expected Result |
Remark |
A |
B、C、D |
1.13In |
cold |
t≤1h |
no tripping |
|
B |
B、C、D |
1.45In |
After test A |
t<1h |
tripping |
The current steadily rise to the specified value within 5s |
C |
B、C、D |
2.55In |
cold |
1s<t<60s(In≤32A) 1s<t<120s(In>32A) |
tripping |
|
D |
B |
3In |
cold |
t≤0.1s |
No tripping |
Turn on the auxiliary switch to close the current |
C |
5In |
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D |
10In |
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E |
B |
5In |
cold |
t<0.1s |
tripping |
Turn on the auxiliary switch to close the current |
C |
10In |
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D |
20In |
Installation
Contact position indicator | Yes |
Protection degree | IP20 |
Reference temperature for setting of thermal element | 30℃ |
Ambient temperature | -25~+70℃ |
Terminal connection type | Cable/U-type busbar/Pin-type busbar |
Terminal size top/bottom for cable | 25mm2 |
Tightening torque | 2.5N.m |
Mounting | On din rail FN 60715 (35mm) by means of fast clip device |
Connection | Top and botton |
Combination with accessories
Auxillary contact | YES |
Alarm contact | YES |
Shunt release | YES |
Under voltage release | YES |