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 |