# Chint NB1-63 Circuit Breaker 1P C40, 6 kA

- **Brand:** Chint
- **SKU:** NB1631NC40A
- **GTIN:** 6925808305574
- **MPN:** NB1631NC40A
- **Price:** 2.95 EUR
- **Availability:** In stock
- **Categories:** EV Charging Accessories

Chint NB1-63 miniature circuit breaker, 1-pole, 40 A, C curve, 6 kA to IEC/EN 60898-1. For single-phase circuits such as sockets, lighting and smaller inverter or charger outputs.

The NB1-63 is Chint's standard DIN-rail circuit breaker for homes, commercial buildings and light industry. It protects a circuit against overload and short circuit and also serves as its isolating switch. The C characteristic trips magnetically at 5 to 10 times the rated current, which rides through the moderate inrush of motors, transformers and inverters while still clearing a short circuit quickly. This 1-pole 40 A version suits single-phase circuits such as sockets, lighting and smaller inverter or charger outputs.

### Key Features

- 1-pole, rated current 40 A, C curve (5-10 In)
- Breaking capacity 6 kA to IEC/EN 60898-1, 10 kA to IEC/EN 60947-2
- Rated voltage 230/400-240/415 V AC, 50/60 Hz
- Energy limiting class 3, impulse withstand 4 kV
- 1 module wide, 35 mm DIN rail with quick clip
- Cable or busbar connection, top and bottom
- Electrical life 4000 cycles, mechanical life 20000 cycles
- IP20, -5 to +40 °C

## Specifications

| Spec | Value |
| --- | --- |
| Voltage | 230/400 V |
| Phase type | single-phase |
| Certifications | IEC/EN 60898-1, IEC/EN 60947-2 |
| Installation type | DIN rail |
| Protection rating | IP20 |
| Operating temperature | -5 to +40 °C |