CHINT · 1P+N miniature circuit breaker
Product overview
The CHINT NBH8-40 family provides overload and short-circuit protection in compact 1P+N AC distribution circuits. Select the complete current, B/C curve and fault-rating suffix.
Technical selection summary
| Pole construction | 1P+N; confirm neutral and terminal arrangement |
|---|---|
| Rated current entries | 1, 2, 3, 4, 6, 10, 16, 20, 25, 32 or 40 A |
| Supply | AC 230/240 V, 50/60 Hz |
| Trip curve | B: 3–5 In; C: 5–10 In in the IEC/EN 60898-1 reference |
| Fault-rating suffix | NBH8-40: 4.5 kA; NBH8-40H: 6 kA in the matching manufacturer ordering tables |
| Mounting / standard | 35 mm DIN rail; IEC/EN 60898-1. Check compatible pin busbar and accessories |
NBH8-40H is a separate fault-rating version; Match the complete marked model, neutral arrangement, breaking duty and conductor size. Apply the manufacturer ambient-temperature derating to the cabinet conditions.
Typical applications
- Compact final distribution boards
- Single-phase branch circuits with coordinated protection
Product reference images and drawings
Match the exact model, suffix, electrical duty and mounting arrangement. The retained family references may show other versions; use the applicable manufacturer row and drawing for the ordered unit.
