Trade Discount 25%
MCB 1P 25A 6kA D Curve DIN Rail NB1-63 Chint
Chint NB1-63 1P 25A MCB features 6kA 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: CHINT NB1-63 D25 MCB, 25A Single-Pole Circuit Breaker, DIN Rail MCB
Technical Specifications
- Rated Current: 25A
- Number of Poles: 1P
- Trip Characteristic: D curve
- Rated Breaking Capacity: 6kA
- Rated Voltage: 230/400V AC and 240/415V AC
- Rated Frequency: 50/60Hz
- Insulation Voltage: 500V
- Impulse Withstand Voltage: 4kV
- Protection Rating: IP20
- Energy Limiting Class: 3
- Terminal Capacity: Up to 25mm² conductors
- Terminal Tightening Torque: 2.0N·m
- Electrical Life: 10,000 operations
- Mechanical Life: 20,000 operations
- Mounting: 35mm EN 60715 DIN rail
- Dimensions (H x L x W): 86mm x 78mm x 18mm
- Weight: 0.11 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit currents
- D-curve characteristic for circuits with higher inrush currents
- 6kA short-circuit breaking capacity
- Single-pole configuration for compact switchboard installation
- DIN rail mounting with fast-clip mechanism
- Compatible with cable, U-type busbar and pin-type busbar connections
- Contact position indicator for clear ON and OFF status
- Top or bottom supply connection
Professional Installation Requirements
- Installation, selection and testing should be carried out by a licensed electrician in accordance with AS/NZS 3000, applicable state or territory requirements and the manufacturer's instructions. Confirm fault level, cable capacity and D-curve suitability before installation.
Applications
- Domestic distribution boards
- Commercial switchboards
- Industrial control and distribution panels
- Motor, transformer and other circuits with elevated starting or inrush currents
- Overload and short-circuit protection for final subcircuits
Standards & Compliance
- Manufacturer-stated IEC/EN 60898-1 design standard
- AS/NZS 60898.1:2024 is the applicable Australian and New Zealand product standard for household and similar installation circuit-breakers; verify local approval and RCM requirements before installation
Environmental Benefits
- Durable construction and documented mechanical and electrical life can reduce replacement frequency and product waste
- Metal components such as copper and steel can be recovered for recycling at end of service life
- Thermal-magnetic protection helps limit damage to connected wiring and equipment, reducing premature replacement
- Low standby energy use because the device is a passive protective switching component
Warranty Information
CHINT's general 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 conditions.
Available Now
Available through authorised CHINT distributors in Australia.
