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MCB 1P 20A 6kA D Curve DIN Rail NB1-63 Chint

BRAND: CABAC
SKU: 179632
$9.50 List price: $12.60
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Chint NB1-63 1P 20A MCB features 6kA breaking capacity, D-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.

Alternatively Known As: 20A D-Curve MCB, Single-Pole DIN Rail Circuit Breaker, NB1-63D1P20

Technical Specifications
  • Poles: 1P
  • Rated Current: 20 A
  • Rated Voltage: 230 V AC
  • Rated Frequency: 50/60 Hz
  • Breaking Capacity: 6 kA
  • Tripping Curve: D curve, 10–14 times rated current
  • Protection Function: Overload and short-circuit protection
  • Insulation Voltage: 500 V
  • Impulse Withstand Voltage: 4 kV
  • Mounting: TH35 DIN rail
  • Connection: Top or bottom feed
  • Terminal Capacity: 1–25 mm² cable
  • Terminal Tightening Torque: 2.0 N·m
  • Ingress Protection: IP20
  • Mechanical Life: 20,000 operations
  • Electrical Life: 4,000 operations
  • Operating Temperature: –5 °C to +40 °C
  • Dimensions (H x L x W): 86mm x 78mm x 18mm
  • Weight: 0.12 kg
Key Features
  • Single-pole protection for low-voltage AC circuits
  • D-curve operation suitable for high-inrush loads such as transformers and motors
  • 6 kA rated short-circuit breaking capacity
  • Thermal-magnetic overload and short-circuit protection
  • Compact 18 mm modular width for standard DIN rail boards
  • Top or bottom cable connection
  • Compatible with selected CHINT auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
  • Installation and connection must be performed by a licensed electrician in accordance with AS/NZS 3000 and applicable local electrical requirements. Confirm fault levels, cable sizing, discrimination and product approval before installation.
Applications
  • Domestic distribution boards
  • Commercial switchboards
  • Control panels and final subcircuits
  • Transformer and motor circuits with high starting current
  • Low-voltage AC overcurrent protection systems
Standards & Compliance
  • Applicable product standard: AS/NZS 60898.1:2024 for household and similar AC circuit-breakers; verify the individual product marking, RCM status and local approval before Australian installation.
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams at end of life
  • Provides passive circuit protection without ongoing energy consumption during normal operation
Warranty Information

CHINT’s general warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture when purchased through authorised sales channels, subject to the applicable sales agreement and warranty terms.

Available Now

Available through authorised CHINT distributors in Australia.

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