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Home  /  Terminals & Bars  / 

CHINT NXB-63G Moulded Case Circuit Breaker (MCCB)

CHINT NXB-63G Moulded Case Circuit Breaker (MCCB)

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Category: Terminals & Bars
Brand: CHINT
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Description
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CHINT NXB-63G Moulded Case Circuit Breaker (MCCB),
is designe for reliable overload and short-circuit protection in low-voltage distribution systems.
Built to comply with IEC/EN 60947-2, it features rated currents from 1A to 63A, breaking capacity of 6kA,
and instantaneous trip settings of 10In and 14.2In. Compact, durable,
and precise, the NXB-63G ensures safe circuit isolation and is ideal for residential,
commercial, and light industrial applications.

  • Compliance: IEC/EN 60947-2, VC8036, SANS 556-1, SANS 60947-2
  • Certifications: CE, CB, LoA, RoHS
  • Function: Overload protection, short-circuit protection, and positive isolation
  • Rated Current (In): 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
  • Rated Voltage (Ue):
    • 230/240V~ (1P)
    • 400/415V~ (2P, 3P, 4P)
  • Frequency: 50/60Hz
  • Number of Poles: 1P, 2P, 3P, 4P
  • Instantaneous Short-circuit Current Settings: 10In, 14.2In
  • Rated Ultimate Short-circuit Breaking Capacity (Icu): 6kA
  • Service Short-circuit Breaking Capacity (Ics): 6kA
  • Rated Insulation Voltage (Ui): 500V
  • Rated Impulse Withstand Voltage (Uimp): 4kV
  • Mechanical Life: 20,000 operations
  • Electrical Life: 10,000 operations
  • Reference Temperature for Thermal Element: 40°C
  • Temperature Derating:
    • 1.0×In at 40°C (reference)
    • Derates to 0.96×In at 50°C, 0.91×In at 60°C
  • Power Consumption per Pole:
    • 1–10A: 3W
    • 16A: 3.5W
    • 20–25A: 4.5W
    • 32A: 6W
    • 40A: 7.5W
    • 50A: 9W
    • 63A: 13W
  • Mounting: TH35-7.5 DIN rail
  • Protection Degree:
    • IP20 (direct mount)
    • IP40 (in distribution box)
  • Applicable Altitude: ≤2000m
  • Operating Temperature: −35°C to +70°C
  • Storage Temperature: −35°C to +85°C
  • Connection Type: Top or bottom entry
  • Terminal Capacity:
    • 1–6A: 1–10mm²
    • 10–25A: 2–25mm²
    • 32–63A: up to 25mm²
  • Tightening Torque: 2 N·m (max 2.5 N·m)
  • Accessories: AX-X1, AL-X1, SHT-X1, OVT-X1, UVT-X1, OUVT-X1

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