CHINT · Air circuit breaker
Product overview
The CHINT 937304 NA1-2000X-1600H is a 1600A, three-pole air circuit breaker for low-voltage main distribution. This code specifies fixed installation, motorized operation and the H communication controller, with a 380/400V AC secondary control supply. Its NA1-2000X frame provides an ultimate short-circuit breaking capacity of 80kA at 400V AC and 50kA at 690V AC.
Technical selection summary
| Ordering code | 937304 |
|---|---|
| Ordering model | NA1-2000X-1600H/3P MO-FX AC380/400 |
| Frame | NA1-2000X / 2000A frame |
| Rated current | 1600A |
| Poles | 3P |
| Installation | Fixed (FX) |
| Operation | Motorized (MO) |
| Intelligent controller | H — communication controller with RS485 |
| Secondary control supply | 380/400V AC |
| Main-circuit voltage / frequency | 400/690V AC / 50/60Hz |
| Ultimate breaking capacity (Icu) | 80kA at 400V AC; 50kA at 690V AC |
| Standard | IEC/EN 60947-2 |
| Dimensions (W × H × D) | 318 × 402 × 359mm |
| Standard equipment | Energy-storage motor, shunt release, closing coil and 4NO+4NC auxiliary contacts |
| Undervoltage release | Ordered separately |
Typical applications
- Main incoming and feeder protection in low-voltage switchboards
- Industrial and commercial power distribution requiring motorized breaker operation
Download CHINT NA1 complete catalogue (PDF)
Product reference images and drawings
