| Type | MCB | |||
| Pole | 1P | 2P,3P,4P | ||
| Rated current (A) | 6，10，16，20，25，32，40，50，63 | |||
| Rated voltage(V) | 230 | 400 | ||
| Ambient temperature | ~5℃~+40℃ | |||
| Type of instantaneous release | C | D | C | D |
Rated short circuit breaking capacity Icn(KA) | 1-32A: 6 50-63A:4.5 | 4.5 | 1-32A: 6 50-63A:4.5 | 4.5 |
| 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 ± 2℃ | Cold position | 1.13ln | t≤1h | Non-release | - |
| Carried out immediately after previous test | 1.45ln | t＜1h | Release | - | |
| Cold position | 2.55ln | 1s＜t＜60s （ln≤32A） | Release | Current smoothly rises to specified value within 5s | |
| Cold position | 2.55ln | 1s＜t＜120s （ln＞32A） | Release | ||
| -5~+40℃ | Cold position | 3ln | t≤0.1s | Non-release | Type B |
| Cold position | 5ln | t＜0.1s | Release | Type B | |
| Cold position | 5ln | t≤0.1s | Non-release | Type C | |
| Cold position | 10ln | t＜0.1s | Release | Type C | |
| Cold position | 10ln | t≤0.1s | Non-release | Type D | |
| Cold position | 20ln | t＜0.1s | Release | Type D |
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