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Home  /  Terminals  /  Terminals & Bars  / 

CHINT NBG-63 Miniature Circuit Breaker (MCB)

CHINT NBG-63 Miniature Circuit Breaker (MCB)

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Category: Terminals & Bars
Brand: CHINT
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Description
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CHINT NBG-63 Miniature Circuit Breaker (MCB),
provides reliable protection against overloads and short circuits in residential,
commercial, and industrial power distribution systems. Designe for AC 230/400V circuits and compliant with IEC/EN 60898-1,
it ensures high operational safety with positive isolation and stable performance.
Available in B, C, and D tripping curves, the NBG-63 offers versatility for different load types and guarantees long mechanical and electrical endurance.

  • Standard Compliance: IEC/EN 60898-1
  • Certifications: CE, CB, RoHS
  • Function: Overload and short-circuit protection, positive isolation
  • Rated Current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • Rated Voltage (Ue):
    • 220/230/240V AC for 1P & 1P+N
    • 380/400/415V AC for 2P–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/Ics): 6000A
  • Rated Insulation Voltage (Ui): 500V
  • Rated Impulse Withstand Voltage (Uimp): 4kV
  • Mechanical Life: ≥20,000 operations
  • Electrical Life: ≥10,000 operations
  • Temperature Range: –35°C to +70°C
  • Power Consumption per Pole: 3W–13W depending on rated current
  • Mounting: 35mm DIN rail
  • Terminal Capacity: Up to 25mm² (solid wire)
  • Protection Degree: IP20 (front face)
  • Dimensions: 77.8mm (length) × 18mm (width) × 80mm (height) per pole

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