CHINT · DC circuit breaker
Product overview
This CHINT NB1-63DC listing provides overload and short-circuit protection for DC distribution. Select the exact pole/current configuration and use the manufacturer DC connection diagram.
Technical selection summary
| Model / current scope | NB1-63DC; 10, 13, 16, 20, 25, 32, 40, 50 or 63 A on this listing |
|---|---|
| Pole scope | 1P / 2P / 4P |
| Voltage by pole construction | 1P: DC 250 V; 2P: DC 500 V; 4P: DC 1000 V in the 6 kA manufacturer table |
| DC breaking duty | Icu 6 kA for the stated pole/voltage rows; other voltage/breaking versions require a separate complete manufacturer code |
| Magnetic trip reference | C type, 7–10 In in this DC manufacturer catalogue; not the AC C-curve range |
| Installation / standard | 35 mm DIN rail; IEC/EN 60947-2 reference; temperature and altitude derating apply |
Do not put 1000 V across a single pole. Match polarity, pole-series wiring, system earthing and prospective DC fault current to the exact manufacturer diagram. A certificate or family headline does not prove every application.
Typical applications
- Distribution and control assemblies matched to the specified device
- Replacement procurement using the complete CHINT model
View CHINT NB1-63DC manufacturer references
Product reference images and drawings
Use the applicable manufacturer model row, connection and outline drawing. Retained family references may show other versions.
