CHINT · Residual current circuit breaker
Product overview
The CHINT 263728 NL1-63 is a 4-pole, 63A Type F residual current circuit breaker (RCCB / interruptor diferencial) with 30mA residual-current sensitivity for 400V AC distribution circuits. Its residual-current protection detects AC, pulsating DC and mixed-frequency residual currents. The unit mounts on a 35mm DIN rail.
Technical selection summary
| Ordering code | 263728 |
|---|---|
| Model | NL1-63/63-4P-F30 |
| Poles | 4P |
| Rated current | 63A |
| Rated residual operating current | 30mA |
| Detection type | Type F — AC, pulsating DC and mixed-frequency residual currents |
| Rated voltage / frequency | 400V AC, 50/60Hz |
| Conditional short-circuit current (Inc) | 10kA with coordinated upstream short-circuit protection |
| Mounting / width | 35mm DIN rail / 4 modules (72mm) |
| Dimensions (H × W × D) | 86 × 72 × 79mm |
| Accessory compatibility | AX-5 auxiliary contact |
| Standard | IEC/EN 61008-1; IEC/EN 62423 |
This RCCB has no integral overload or short-circuit protection and requires a coordinated upstream protective device.
Typical applications
- Residential and commercial distribution boards
- Final distribution circuits requiring 30mA Type F residual-current protection
Download CHINT NL1 manufacturer catalogue (PDF)
Product reference images and drawings
