CHINT · Miniature circuit breaker
Product overview
The CHINT NXB-63 protects AC circuits against overload and short-circuit faults. This listing offers 1P, 2P, 3P, 4P configurations. Match the rated current to the conductor and load, then confirm the tripping characteristic and fault-level requirement for the installation.
Technical selection summary
| Series | NXB-63 |
|---|---|
| Listing pole choices | 1P, 2P, 3P, 4P |
| Rated current | 1, 2, 3, 4, 6, 10, 16, 20, 25, 32, 40, 50 and 63 A |
| Tripping characteristic | B, C, D |
| AC voltage reference | 220/230/240 V for applicable 1P/1P+N/2P connections; 380/400/415 V for applicable multipole connections |
| IEC/EN 60898-1 breaking rating | 6 kA for this version |
| Frequency / mounting | 50/60 Hz / 35 mm DIN rail |
NXB-63H (10 kA), NXB-63G and DC circuit breakers are separate versions. For an inverter installation, this NXB-63 listing concerns the AC side; do not use it as a PV DC breaker.
Typical applications
- AC distribution-board assembly
- Commercial and industrial panel procurement
- Replacement protection with exact version and nameplate verification
Specify your enquiry
For a focused quotation, include:
- Full model and applicable standard
- Pole count, current rating, curve and quantity
- AC system voltage, prospective fault current and required approval
Select the available parameters above and add the item to your quote list. The quotation will confirm the exact configuration and supporting documents.
Download the official CHINT NXB-63 catalogue (PDF)
