CHINT · Circuit breaker
Product overview
This CHINT NXB-63S listing provides overload and short-circuit protection for AC distribution. Select the exact manufacturer model, pole count, rated current and trip characteristic, then match the installation fault level.
Technical selection summary
| Manufacturer model | NXB-63S |
|---|---|
| Current choices on this page | 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Pole scope | 1P, 2P, 3P or 4P; confirm complete neutral/terminal construction |
| Trip characteristic | B / C / D; use the exact manufacturer release/curve row |
| AC supply reference | AC 240/415 V, 50/60 Hz manufacturer reference; use the appropriate pole/system voltage |
| Short-circuit reference | 4.5 kA short-circuit and service values in the exact NXB-63S column |
| Installation / documents | 35 mm DIN rail; apply the exact manufacturer installation/derating instructions and obtain documents for the supplied version |
The S construction has its own manufacturer column. Do not copy 6 kA from NXB-63 or 10 kA from NXB-63H. Match the marked device, fault level, conductor protection and applicable temperature derating.
Typical applications
- Distribution or control panels matched to the exact device
- Replacement procurement using complete CHINT model and assembly information
Specify your enquiry
For a focused quotation, include:
- Full NXB-63S code, poles, rated current, curve and quantity
- System voltage/frequency, fault level and required standard
- Neutral, terminals/busbar, accessories and applicable supply documents
Download CHINT NXB-63S manufacturer catalogue (PDF)
Product reference images and drawings
Match the exact manufacturer model, pole construction, voltage and connection drawing. Retained family images may show other versions.


