The NXA Series Air Circuit Breaker (ACB) from CHINT delivers reliable protection and intelligent control for low-voltage power distribution. Available from 1600A to 6300A in 3P/4P and fixed or draw-out types, it offers overload, short-circuit, and ground fault protection with advanced monitoring. Its intelligent controller enables precise measurement of current, voltage, power factor, and harmonics, while EMC compliance and wide temperature tolerance ensure safe, stable operation in demanding industrial and commercial environments.

• Frame Sizes: 1600A, 2000A, 3200A, 4000A, 6300A
• Rated Operational Voltage (Ue): 380/400/415V, 440/525V, 690V
• Poles: 3P & 4P options
• Installation Types: Fixed & draw-out type
• Breaking Capacities: N, S, H series (high breaking capacity)
• Protection Functions: Overload, short-circuit (short delay & instantaneous), ground fault, neutral line protection
• Advanced Protection: Voltage imbalance, over/under-voltage, frequency protection, phase sequence & reverse power protection
• Environmental Tolerance: Operating temp -5°C to +40°C (up to -45°C~+70°C for special types), storage -45°C to +70°C
• IP Rating: Front IP20, other sides IP00
• Compliance: IEC/EN 60947-2, EMC Annex F (guaranteed no false tripping)
  Measurement & Monitoring: RMS current/voltage, power factor, THD, harmonic analysis, energy meterin