| Rated current(A) |
Norminal cross section of wire mm2 |
| 1-6A |
1 |
| 10A |
1.5 |
| 16,20A |
2.5 |
| 25A |
4 |
| 32A |
6 |
| 40,50A |
10 |
| 63A |
16 |
| Ambient Temperature |
Initial Status |
Test Current |
Expected
Result |
Expected Result |
Note |
| 30?°C |
Cold position |
1.13In |
t ≥ 1h |
Non-release |
? |
| Carried out immediately after previous test |
1.45In |
t<1h |
Release |
? |
| Cold position |
2.55In |
1s<t<60s
(In ≤ 32A) |
Release |
Current smoothly rises to specified value within 5s |
| Cold position |
2.55In |
1s<t<120s (In>32A) |
Release |
| -5~+40°C |
Cold position |
3In |
t ≥ 0.1s |
Non-release |
Type B |
| Cold position |
5In |
t<0.1s |
Release |
Type B |
| Cold position |
5In |
t ≥ 0.1s |
Non-release |
Type C |
| Cold position |
10In |
t<0.1s |
Release |
Type C |
| Cold position |
10In |
t ≥ 0.1s |
Non-release |
Type D |
| Cold position |
20In |
t<0.1s |
Release |
Type D |