Chint NXA air circuit breaker is designed for low-voltage power distribution systems and provides reliable protection for circuits and equipment against overload,
short circuit, under-voltage, and related fault conditions. The NXA series is widely used in switchgear, industrial distribution panels,
commercial power systems, and infrastructure projects that require stable high-current ACB protection.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Series | NXA |
| Type | Air Circuit Breaker (ACB) |
| Frame Size | 1600A / 2000A / 3200A / 4000A |
| Rated Current Options | 1000A / 1600A / 2000A / 2500A / 3200A / 4000A / 5000A / 6300A |
| Breaking Capacity | 20kA – 100kA |
| Rated Operational Voltage | 380V / 400V / 415V, 440V / 525V / 690V AC |
| Pole Number | 3P / 4P |
| Installation Method | Draw-out type / Fixed type |
| Protection Grade | Front IP20 / Other side IP00 |
| Operating Temperature | -5℃ to +40℃; extended versions: -45℃ to +70℃ (M/A), -20℃ to +70℃ (P/H/CD-1) |
| Storage Temperature | -45℃ to +70℃ |
| EMC Standard | IEC/EN 60947-2 Annex F |
