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MCB 2P 25A 10kA B Curve DIN Rail NB1-63H Chint

BRAND: CABAC
SKU: 179815
$21.20 List price: $28.20
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Chint NB1-63H 2P 25A 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: 2P 25A B-Curve MCB, DIN Rail Circuit Breaker, Thermomagnetic Circuit Breaker

Technical Specifications
  • Rated Current: 25 A
  • Number of Poles: 2P
  • Tripping Characteristic: Type B, 3–5 times rated current
  • Rated Voltage: AC 230/400 V to 240/415 V
  • Rated Frequency: 50/60 Hz
  • Breaking Capacity: 10 kA
  • Insulation Voltage: 500 V
  • Energy Limiting Class: 3
  • Terminal Capacity: Up to 25 mm² cable
  • Terminal Torque: 2.5 N·m
  • Protection Rating: IP20
  • Operating Temperature: −25°C to +60°C
  • Mechanical Life: 20,000 operations
  • Electrical Life: 10,000 operations
  • Mounting: 35 mm DIN rail to EN 60715
  • Connection: Top or bottom feed
  • Power Loss: Maximum 3.5 W per pole at 25 A
  • Dimensions (H x L x W): 86mm x 78mm x 36mm
  • Weight: 0.22 kg
Key Features
  • Two-pole circuit protection for overload and short-circuit conditions
  • Type B thermal-magnetic trip characteristic suitable for low-inrush domestic and commercial circuits
  • 10 kA rated short-circuit breaking capacity
  • Compact modular construction for switchboards and distribution boards
  • Quick-clip mounting on 35 mm DIN rail
  • Top or bottom electrical connection
  • Visible contact position indicator
  • Compatible with 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 and manufacturer instructions. Verify prospective fault current, cable sizing and coordination before installation.
Applications
  • Domestic switchboards and consumer units
  • Commercial distribution boards
  • Control panels and low-voltage distribution systems
  • Protection of lighting, socket-outlet and general-purpose circuits
  • TN and IT systems requiring Type B circuit protection
Standards & Compliance
  • AS/NZS 60898.1:2024 is the applicable Australian/New Zealand product standard for AC miniature circuit-breakers; specific Australian approval and RCM marking should be verified before installation.
Environmental Benefits
  • Long mechanical and electrical service life can reduce replacement frequency and associated waste
  • Modular construction allows replacement of the individual protective device rather than the complete switchboard assembly
  • Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
Warranty Information

CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised channels; contract terms and local distributor conditions may vary.

Available Now

Available through authorised CHINT distributors in Australia.

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