CHINT NXB-63C Miniature Circuit Breaker (MCB)

CHINT NXB-63C Miniature Circuit Breaker (MCB),
provides reliable overload and short-circuit protection for residential, commercial,
and light industrial electrical systems. Designed for AC 230/400V, it ensures positive isolation, safety,
and durability. Available in B, C, and D tripping curves, and rated up to 63A,
it delivers a breaking capacity of 3kA. Built to IEC/EN 60898-1 standards, the NXB-63C combines compact size, precise operation,
and long mechanical life for dependable protection.

• Function: Overload, short-circuit protection, and positive isolation
• Standard Compliance: IEC/EN 60898-1
• Certification: CE
• Rated Current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
• Rated Voltage (Ue):
  • 220V~/230V~/240V~ (1P, 1P+N)
  • 380V~/400V~/415V~ (2P, 3P, 3P+N, 4P)
• Rated Frequency: 50/60Hz
• Tripping Characteristics: B, C, D curves
• Number of Poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P
• Rated Short-Circuit Breaking Capacity (Icn): 3000A
• Rated Service Short-Circuit Capacity (Ics): 3000A
• Rated Impulse Withstand Voltage (Uimp): 4kV
• Mechanical Life: 20,000 cycles
• Electrical Life: 10,000 cycles
• Maximum Power Consumption (per pole):
  • 1–10A: 3W
  • 16A: 3.5W
  • 20–25A: 4.5W
  • 32A: 6W
  • 40A: 7.5W
  • 50A: 9W
  • 63A: 13W
• Installation Type: DIN rail mounting (TH35)
• Protection Degree: IP20
• Dimensions (mm):
  • 1P: 18 (W) × 77.8 (H) × 65.5 (D)
  • 2P: 36 (W)
  • 3P: 54 (W)
  • 3P+N / 4P: 72 (W)