| Type |
AM4-125 |
AM4-250 |
| Poles number |
3 |
3 |
| Rated current In(A) |
25~125 |
125~250 |
| Rated working voltage Ue(V) (50/60Hz) |
500 |
600 |
| Rated working voltage Ue -(V) |
250 |
250 |
| Rated insulation voltage Ui~(V) |
500 |
690 |
| Rated impulse voltage Uimp(KV) |
6 |
8 |
| Utilisation category |
A |
A |
Rated limited short-circuit breaking capacity Icu(KA) |
230/240V~ |
22 |
60 |
| 400/415V~ |
16 |
36 |
| 440V~ |
10 |
30 |
| 480/500V~ |
8 |
25 |
| 600V~ |
? |
20 |
| 690V~ |
? |
16 |
| 250V ? |
16 |
36 |
| Rated short-circuit breaking service capacity Ics(%Icu) |
100 |
100 |
| Life(open,close for a time) |
Mechanical |
7000 |
7000 |
| Electrical |
1000 |
1000 |