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MCB 3P 6A 6kA D Curve DIN Rail NB1-63 Chint

BRAND: CABAC
SKU: 179723
$40.70 List price: $54.20
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Chint NB1-63 3P 6A 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: CHINT NB1-63D3P06, 3P 6A D-Curve MCB, Three-Phase DIN Rail Circuit Breaker

Technical Specifications
  • Product Series: NB1-63
  • Poles: 3P
  • Rated Current: 6A
  • Tripping Curve: D curve
  • Breaking Capacity: 6kA
  • Rated Voltage: 400V AC between phases
  • Rated Frequency: 50/60Hz
  • Insulation Voltage: 500V
  • Impulse Withstand Voltage: 4kV
  • Trip Function: Thermal-magnetic overload and short-circuit protection
  • D-Curve Magnetic Trip Range: 10–14 times rated current
  • Mounting: TH35-7.5 DIN rail
  • Terminal Capacity: 1–25mm² cable
  • Terminal Tightening Torque: 2.0N·m
  • Protection Degree: IP20
  • Mechanical Life: 20,000 operations
  • Electrical Life: 4,000 operations
  • Dimensions (H x L x W): 82mm x 75.5mm x 54mm
  • Weight: 0.326 kg
Key Features
  • Three-pole protection for three-phase circuits
  • 6A rating for low-current distribution and control circuits
  • D-curve characteristic accommodates high inrush currents from transformers and motors
  • 6kA rated short-circuit breaking capacity
  • Thermal-magnetic protection against overload and short-circuit conditions
  • DIN rail mounting for modular switchboards
  • Top or bottom feed connection
  • Compatible with selected CHINT auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
  • Installation, testing and commissioning must be carried out by a licensed electrician in accordance with applicable Australian wiring rules, equipment instructions and local regulatory requirements.
Applications
  • Domestic distribution boards
  • Commercial switchboards
  • Three-phase control circuits
  • Transformer and motor circuits with high starting or inrush current
  • Low-voltage power distribution and isolation applications
Standards & Compliance
  • IEC/EN 60898-1 product standard stated for the NB1-63 series
  • AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for this type of AC miniature circuit-breaker; confirm local approval, marking and installation suitability before use
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Metal and thermoplastic components may be recoverable for recycling through appropriate electrical equipment recycling facilities
  • Supports controlled disconnection and protection of electrical systems, helping reduce damage caused by overloads and short circuits
Warranty Information

CHINT's general policy for other low-voltage apparatus provides 27 months from the date of manufacture against defects in materials and workmanship, subject to authorised sales channels and applicable contract terms.

Available Now

Available through authorised CHINT distributors in Australia.

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