KNB2-63-S3 Miniature Circuit Breaker
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KNB2-63 High-breaking Miniature Circuit Breaker is nice in appearance, reasonable in structure, sound in feature and high in breaking capacity. Installed with standard din rail, it is convenient and easy in usage. It is mainly used in the line of AC 50/60Hz, rated working voltage to 415V, and rated current to 63A as protection against overload and short-circuit. It can be used as infrequent on-and-off operation and changeover.
It complies with standard of GB10963 and IEC/EN60898.
| 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 | 6000A |
| Release type | B、C、D |
| Poles | 1、2、3、4P |
| Mechanical life | 10000 |
| Electric life | 2000 |
| 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 |
