Trade Discount 25%
MCB 3P 25A 10kA D Curve DIN Rail NB1-63H Chint
Chint NB1-63H 3P 25A MCB features 10kA breaking capacity, D-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: 3P MCB, 25A D-Curve Circuit Breaker, DIN Rail Circuit Breaker, NB1-63H/D25-3P-10
Technical Specifications
- Product Series: NB1-63H
- Poles: 3P
- Rated Current: 25 A
- Tripping Characteristic: D curve, 10–14 times rated current
- Rated Voltage: 230/400–240/415 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 10 kA
- Rated Insulation Voltage: 500 V
- Energy Limiting Class: 3
- Impulse Withstand Voltage: 6 kV
- Terminal Capacity: Up to 25 mm²
- Tightening Torque: 2.5 N·m
- Mounting: 35 mm EN 60715 DIN rail
- Connection: Top or bottom feed
- Ingress Protection: IP20
- Electrical Life: 10,000 operations
- Mechanical Life: 20,000 operations
- Reference Temperature: 30 °C
- Operating Temperature: -25 °C to +70 °C
- Dimensions (H x L x W): 86.6mm x 78mm x 54mm
- Weight: 0.33 kg
Key Features
- Three-pole protection for three-phase circuits
- D-curve thermal-magnetic protection for loads with high inrush current
- 10 kA short-circuit breaking capacity
- Suitable for motor, pump, compressor, transformer and other inductive loads
- Compact modular design for distribution boards
- Compatible with cable, U-type busbar and pin-type busbar connections
- Top or bottom supply connection
- DIN rail mounting with fast-clip installation
- Contact position indication
- Compatible auxiliary, alarm, shunt-release and under-voltage accessories
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, the switchboard manufacturer's requirements and applicable local electrical regulations.
Applications
- Residential distribution boards
- Commercial electrical switchboards
- Industrial power distribution panels
- Three-phase motor circuits
- Pump and compressor circuits
- Transformer and other inductive-load protection
- Circuits subject to high starting or inrush current
Standards & Compliance
- AS/NZS 60898.1:2004 certification is listed for the NB1-63H series
- AS/NZS 3000 applies to selection and installation in Australian electrical installations
- SAA certification and RCM-related approval documentation are listed for the NB1-63H series
Environmental Benefits
- Thermal-magnetic protection can help prevent equipment damage and premature replacement following overload or short-circuit faults
- Durable construction and rated electrical and mechanical life can reduce replacement waste
- Metal components and thermoplastics can be separated for appropriate recycling at end of service life
- RoHS and REACH-related documentation is available for the NB1-63H series
Warranty Information
CHINT's general policy for other low-voltage apparatus provides a 27-month warranty from the date of manufacture when supplied through authorised sales channels, subject to the applicable contract and local warranty terms.
Available Now
Available through authorised CHINT distributors in Australia.
