CHINT · DIN rail circuit breaker
Product overview
The CHINT 816127 NXB-125 is a 1-pole C125 DIN rail circuit breaker for overload and short-circuit protection in low-voltage distribution boards. This code is rated at 125A and 230V AC, 50/60Hz, with an ultimate breaking capacity (Icu) of 10kA under IEC/EN 60947-2. It occupies 1.5 DIN modules with a width of 27mm.
Technical selection summary
| Ordering code | 816127 |
|---|---|
| Ordering model | NXB-125/C125-1P-10 |
| Model series | NXB-125 |
| Poles | 1P |
| Rated current | 125A |
| Trip curve | C |
| Rated voltage / frequency | 230V AC / 50/60Hz |
| Ultimate breaking capacity (Icu) | 10kA — IEC/EN 60947-2 |
| Service breaking capacity (Ics) | 7.5kA — IEC/EN 60947-2 |
| DIN-rail width | 1.5 modules / 27mm |
| Dimensions (H × W × D) | 80.5 × 27 × 75.5mm |
| Mounting | DIN rail |
| Reference standard | IEC/EN 60947-2 |
| Compatible accessories | AX-X3 auxiliary contact; AL-X3 alarm contact; SHT-X3 shunt release; UVT-X3 undervoltage release; OVT-X3 overvoltage release; OUVT-X3 under/overvoltage release |
| Residual-current module compatibility | Not compatible with add-on residual-current modules |
Typical applications
- 125A final distribution circuits in commercial electrical panels
- Higher-current DIN rail distribution boards and OEM distribution assemblies
Download CHINT NXB-125 complete catalogue (PDF)
Product reference images and drawings
