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MCB 1P 40A 10kA B Curve DIN Rail NB1-63H Chint

BRAND: CABAC
SKU: 179777
$17.90 List price: $23.80
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Chint NB1-63H 1P 40A MCB features 10kA breaking capacity, B-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.

Alternatively Known As: CHINT NB1-63H B40 MCB, 40A Single-Pole Circuit Breaker, DIN Rail MCB, Thermomagnetic Circuit Breaker

Technical Specifications
  • Product Series: NB1-63H
  • Poles: 1P
  • Rated Current: 40 A
  • Tripping Curve: B curve, 3–5 × In
  • Rated Voltage: AC 230/400–240/415 V
  • Rated Frequency: 50/60 Hz
  • Breaking Capacity: 10 kA
  • Rated Insulation Voltage: 500 V
  • Rated Impulse Withstand Voltage: 6 kV
  • Energy Limiting Class: 3
  • Terminal Capacity: Up to 25 mm²
  • Terminal Torque: 2.5 N·m
  • Mounting: 35 mm DIN rail to EN 60715
  • Protection Degree: IP20
  • Operating Temperature: −25 °C to +70 °C
  • Mechanical Life: 20,000 operations
  • Electrical Life: 10,000 operations
  • Dimensions (H x L x W): 86mm x 78mm x 18mm
  • Weight: 0.1 kg
Key Features
  • Single-pole protection for low-voltage AC circuits
  • Thermal-magnetic protection against overload and short circuit
  • B-curve tripping characteristic for general domestic and commercial circuits
  • 10 kA short-circuit breaking capacity
  • Compact one-module DIN rail format
  • Top or bottom feed connection
  • Compatible with cable, U-type busbar and pin-type busbar connections
  • Auxiliary, alarm, shunt-release and under-voltage accessories available
Professional Installation Requirements
  • Installation, circuit selection and testing must be performed by a licensed electrician in accordance with applicable Australian wiring rules, manufacturer instructions and local regulatory requirements.
Applications
  • Residential distribution boards
  • Commercial switchboards and final distribution panels
  • Control panels and low-voltage power distribution systems
  • General-purpose circuits requiring B-curve overcurrent protection
Standards & Compliance
  • Designed to IEC/EN 60898-1; AS/NZS 60898.1:2024 is the applicable Australian/New Zealand product standard for household and similar AC circuit-breakers. Verify local approval and RCM requirements before installation.
  • Installations must comply with AS/NZS 3000 wiring rules and applicable state or territory electrical regulations.
Environmental Benefits
  • Provides long service life, helping reduce replacement frequency and electrical equipment waste
  • Metallic and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
  • Thermal-magnetic protection can help limit equipment damage and associated material waste during overload or short-circuit events
Warranty Information

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

Available Now

Available through authorised CHINT distributors in Australia.

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