Description
KNB6-40 Miniature Circuit Breaker combines an aesthetically pleasing design with robust functionality. This circuit breaker is built with a reasonable structure and high breaking capacity, making it an essential component for electrical protection. It is designed for use in AC lines with a frequency of 50/60Hz, accommodating a rated working voltage of up to 240V and a rated current of 40A. This device not only protects against overload and short circuits but also facilitates infrequent on-and-off operations and changeovers. Complying with GB10963 and IEC/EN60898 standards, it guarantees reliability and safety in various applications.
Specifications
| Attribute | Value |
|---|---|
| Frame Class | 40A |
| Rated Working Voltage | 240V |
| Rated Frequency | 50/60Hz |
| Rated Working Current | 6, 10, 16, 20, 25, 32, 40A |
| Making and Breaking Capacity | 4500A |
| Release Type | C |
| Poles | 1P+N |
| Mechanical Life | 8000 |
| Electric Life | 4000 |
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 | Tripping |
| 4 | C | 5In | Cold State | t≤0.1s | Not Tripping |
| 5 | C | 10In | Cold State | t＜0.1s | Tripping |
