KNB6-63 Miniature Circuit Breaker（with window）
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KNB6-63 High-breaking Miniature Circuit Breaker is an exceptional electrical component designed for durability and reliability. With its appealing appearance and robust structure, this circuit breaker ensures sound functionality and high breaking capacity. It is specifically engineered for installation on standard DIN rails, making it user-friendly and convenient. The KNB6-63 is suitable for AC lines operating at a frequency of 50/60Hz, with a rated working voltage of 415V and a maximum rated current of 63A, providing essential protection against overloads and short circuits. Additionally, it is capable of infrequent on-and-off operations and changeovers, complying with the standards of GB10963 and IEC/EN60898.
Specifications
| Attribute | Details |
|---|---|
| Frame class | 63A |
| Rated working voltage | 240V/415V |
| Rated frequency | 50/60Hz |
| Rated working current | 6, 10, 16, 20, 25, 32, 40, 50, 63A |
| Making and breaking capacity | 10000A |
| Release type | B, C, D |
| Poles | 1, 2, 3, 4P |
| Mechanical life | 10000 cycles |
| Electric life | 4000 cycles |
Additional Information
| Sequence NO | Release | Test current I/In | Start state | Tripping time | Expected result |
|---|---|---|---|---|---|
| 1 | C | 1.13In | Cold state | t≤1h | Not tripping |
| 2 | C | 1.45In | Start right after the serial NO. 1 test | t＜1h | Tripping |
| 3 | C | 2.55In | Cold state | 1s＜t＜60s (ln≤32A) / 1s＜t＜120s (ln>32A) | Tripping |
| 4 | C | 5In | Cold state | t≤0.1s | Not Tripping |
| 5 | C | 10In | Cold state | t＜0.1s | Tripping |
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