CHINT · NXBLE-125 RCBO 10kA
Product overview
The CHINT 390249 NXBLE-125 is a 4P magnetothermic differential circuit breaker that combines overload, short-circuit and residual-current protection in a single device. This ordering code is rated 100A with a D tripping curve, 30mA residual operating current and a Type A residual-current characteristic, at 400V AC 50/60Hz. It provides 10kA rated breaking capacity (7.5kA service) to IEC/EN 60947-2, with a thermal-magnetic release set at 12In for the D curve.
Technical selection summary
| Ordering code | 390249 |
|---|---|
| Ordering designation | NXBLE-125 4P D100 30mA Type A |
| Model series | NXBLE-125 |
| Device type | RCBO — magnetothermic differential circuit breaker (overload, short-circuit and residual-current protection) |
| Number of poles | 4P |
| Rated current (In) | 100A |
| Trip curve | D |
| Thermal-magnetic release | D — 12In |
| Rated residual operating current (I∆n) | 30mA |
| Residual current type | Type A |
| Rated voltage (Ue) | 400V AC |
| Rated frequency | 50/60Hz |
| Rated short-circuit breaking capacity (Icu) | 10kA |
| Service breaking capacity (Ics) | 7.5kA |
| Rated impulse withstand voltage (Uimp) | 4kV |
| Mechanical life | 20,000 cycles |
| Electrical life | 6,000 cycles (In ≤ 100A) |
| DIN-rail width | 7.5 modules / 135mm |
| Net weight | 0.91kg |
| Reference standard | IEC/EN 60947-2 |
| Certification | CE, RoHS |
Typical applications
- Final distribution circuits requiring combined residual-current and overcurrent protection
- Three-phase distribution boards where a Type A residual-current characteristic is specified
- Residential, commercial and light-industrial installations using the NXBLE-125 125A frame
Download CHINT NXBLE-125 complete catalogue (PDF)
