M4 series Moulded Case Circuit Breaker(MCCB)
Application
M4 series MCCB is applicable circuit of AC 50/60Hz, rated current up to 400A, for distribute energy of electricity & infrequent making & breaking circuit in normal conditions. The products conforms to IEC60947-2.
Specification
| Type |
M4-125 |
M4-160 |
M4-250 |
M4-400 |
|
| Poles number |
3 |
3 |
3 |
3 |
|
| Rated current In(A) |
25~125 |
25~160 |
125~250 |
125~400 |
|
| Rated working voltage Ue(V) (50/60Hz) |
500 |
500 |
600 |
600 |
|
| Rated working voltage Ue (V) |
250 |
250 |
250 |
250 |
|
| Rated insulation voltage Ui~(V) |
500 |
500 |
690 |
690 |
|
| Rated impulse voltage Uimp(kV) |
6 |
6 |
8 |
8 |
|
| Utilisation category |
A |
A |
A |
A |
|
| Rated limited short-circuit breaking capacity Icu(kA) |
230/240V~ |
22 |
50 |
60 |
70 |
|
400/415V~ |
16 |
36 |
36 |
40 |
|
|
440V~ |
10 |
20 |
30 |
36 |
|
|
480/500V~ |
8 |
14 |
25 |
30 |
|
|
600V~ |
- |
- |
20 |
- |
|
|
690V~ |
- |
- |
16 |
- |
|
|
250V~ |
16 |
- |
36 |
- |
|
| Rated short-circuit breaking service capacity Ics(%Icu) |
100 |
100 |
100 |
100 |
|
| Mechanical life |
7000 |
7000 |
7000 |
5000 |
|
| Electrical life |
1000 |
100 |
1000 |
800 |
|
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