CQB2-125 10kA Miniature Circuit Breaker
Inquire NowDescription
The CQB2-125 10kA Miniature Circuit Breaker is designed for both single-phase and three-phase applications, ensuring high reliability and safety in various electrical installations. With a remarkable breaking capacity of up to 10kA, it provides robust overload and short circuit protection. Its positive isolation feature enhances safety during maintenance. This circuit breaker is ideal for use in industrial, commercial, high-rise buildings, and residential circuit protection, making it a versatile choice for all electrical needs.
Specifications
| Attribute | Details |
|---|---|
| Rated Voltage (V) | AC230V, AC400V |
| Nominal Current (A) | 63A, 80A, 100A, 125A |
| Number of Poles | 1P, 2P, 3P, 4P |
| Tripping Curves | C, D |
| Rated Short-Circuit Breaking Capacity (lcu A) | 10000A |
| Rated Service Short-Circuit Breaking Capacity (Ics A) | 7500A |
| Rated Impulse Withstand Voltage (Uimp V) | 4000V |
| Mechanical Life (cycles) | ≥8000 |
| Electrical Life (cycles) | ≥1500 |
| Protection Degree | IP20 |
| Standards | IEC60947-2, GB/T14048.2 |
| Compliant Certification | CCC |
Additional Information
Tripping Characteristics (Reference temp. 30℃)
| Item | Curve | Test Current ln (A) | Initial Status | Time Limit for Tripping or Non-Tripping | Expected Result | Remark |
|---|---|---|---|---|---|---|
| a | C, D | 1.05ln | Cold | 1h (ln≤63A) 2h (ln＞63A) |
Non-tripping | Current smoothly rises to specified value within 5s |
| b | C, D | 1.3ln | Following Item a test | 1h (ln≤63A) 2h (ln＞63A) |
Tripping | |
| c | C, D | 2ln | Cold | 1s<t<300s | Tripping | |
| d | C, D | 8ln×80% 12ln×80% |
Cold | t≤0.2s | Non-tripping | Switch on the power supply by closing the auxiliary switch |
| e | C, D | 8ln×120% 12ln×120% |
Cold | t<0.1s | Tripping | Switch on the power supply by closing the auxiliary switch |
Note: The terminology “Cold” means that the test is performed at the base calibration temperature with no load prior to the test.
Related Products
Product Inquiry Form
Thanks your message successfully submitted.