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MCB 1P 20A 10kA B Curve DIN Rail NB1-63H Chint

BRAND: CABAC
SKU: 179772
$17.90 List price: $23.80
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Chint NB1-63H 1P 20A 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: Single-pole MCB, DIN-rail circuit breaker, thermal-magnetic circuit breaker, B20 MCB

Technical Specifications
  • Poles: 1P
  • Rated Current: 20 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
  • Service Breaking Capacity: 7.5 kA
  • Rated Insulation Voltage: 500 V
  • Rated Impulse Withstand Voltage: 6 kV
  • Energy Limiting Class: 3
  • Protection Type: Thermal-magnetic overload and short-circuit protection
  • Mounting: 35 mm DIN rail to EN 60715
  • Terminal Capacity: Up to 25 mm²
  • Terminal Torque: 2.5 N·m
  • Protection Degree: IP20
  • Mechanical Life: 20,000 operations
  • Electrical Life: 10,000 operations
  • Operating Temperature: −25°C to +70°C, with daily average up to +35°C
  • Dimensions (H x L x W): 86mm x 78mm x 18mm
  • Weight: 0.1 kg
Key Features
  • Single-pole circuit protection for 230 V installations
  • B-curve tripping characteristic for general domestic and commercial circuits
  • 10 kA short-circuit breaking capacity
  • Thermal-magnetic protection against overloads and short circuits
  • Suitable for cable, U-type busbar and pin-type busbar connections
  • Top or bottom feed connection
  • Positive isolation indication through the operating toggle
  • Compact one-module DIN-rail format
Professional Installation Requirements
  • Installation, testing and switchboard work must be performed by a licensed electrical contractor in accordance with AS/NZS 3000 and applicable local requirements. Confirm the product's local approval and RCM requirements before installation.
Applications
  • Domestic distribution boards
  • Commercial switchboards
  • Lighting and general power circuits
  • Control panels and low-voltage distribution systems
  • Overload and short-circuit protection for final circuits
Standards & Compliance
  • IEC/EN 60898-1 manufacturer-declared product standard
  • AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for household and similar a.c. circuit-breakers; verify local certification and RCM approval before use
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Compact one-module construction helps minimise switchboard material and installation space
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling facilities at end of life
Warranty Information

CHINT warranty policy generally provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels, subject to the applicable policy terms.

Available Now

Available through authorised CHINT distributors in Australia.

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