KNB2-63-S3 Miniature Circuit Breaker
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KNB2-63 High-breaking Miniature Circuit Breaker is designed for both aesthetic appeal and robust functionality. This high-quality circuit breaker features a sound structural design and impressive breaking capacity, making it an essential component for electrical safety. It is compatible with standard DIN rail installations, ensuring ease of use and convenience. The KNB2-63 is primarily utilized in AC 50/60Hz lines, supporting rated working voltages up to 415V and current ratings of 63A, effectively protecting against overloads and short circuits. Additionally, it can facilitate infrequent on-and-off operations and changeovers, adhering to 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 | 6000A |
| Release type | B, C, D |
| Poles | 1, 2, 3, 4P |
| Mechanical life | 10,000 cycles |
| Electric life | 2,000 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 (In ≤ 32A), 1s < t < 120s (In > 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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