Trade Discount 25%
MCB 1P 25A 10kA B Curve DIN Rail NB1-63H Chint
Chint NB1-63H 1P 25A MCB features 10kA breaking capacity, B-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: CHINT NB1-63H MCB, 25A Single-Pole Circuit Breaker, DIN Rail MCB, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Product Type: Miniature circuit breaker
- Poles: 1P
- Rated Current: 25A
- Tripping Characteristic: B curve
- Rated Voltage: 240/415V AC
- Rated Frequency: 50/60Hz
- Rated Breaking Capacity: 10kA Icn
- Rated Service Short-Circuit Capacity: 7.5kA Ics
- Insulation Voltage: 500V
- Energy Limiting Class: 3
- Rated Impulse Withstand Voltage: 4kV
- Power Loss: 6W per pole at 25A
- Electrical Life: 10,000 operations
- Mechanical Life: 20,000 operations
- Terminal Capacity: Up to 25mm² cable or 10mm² busbar
- Terminal Tightening Torque: 2.0N·m
- Mounting: 35mm DIN rail to EN 60715
- Connection: Top or bottom entry
- Dimensions (H x L x W): 86mm x 78mm x 18mm
- Weight: 0.11 kg
Key Features
- Thermal-magnetic overload and short-circuit protection
- B-curve tripping characteristic for general domestic and commercial circuits
- 10kA short-circuit breaking capacity
- Single-pole configuration for compact switchboard installation
- DIN rail mounting with fast-clip mechanism
- Contact position indication
- Compatible with auxiliary, shunt-release, undervoltage-release and alarm-contact accessories
- Suitable for cable, U-type busbar and pin-type busbar connections
Professional Installation Requirements
- Installation, selection and testing should be performed by a licensed electrician in accordance with AS/NZS 3000 and applicable local requirements. Confirm prospective fault current, cable capacity, discrimination and enclosure suitability before installation.
Applications
- Domestic distribution boards
- Commercial switchboards
- Lighting and general-purpose power circuits
- Final subcircuits requiring B-curve overcurrent protection
- Low-voltage AC power distribution installations
Standards & Compliance
- Designed and certified 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
- Installation must comply with AS/NZS 3000 wiring rules
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and product waste
- Metal and thermoplastic components can be separated for appropriate recycling at end of life
- Compact DIN rail design supports efficient use of switchboard materials and enclosure space
Warranty Information
CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus when purchased through authorised sales channels, subject to the policy terms and conditions.
Available Now
Available through authorised CHINT distributors in Australia.
