Trade Discount 25%
MCB 1P 25A 6kA B Curve DIN Rail NB1-63 Chint
Chint NB1-63 1P 25A MCB features 6kA 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: 25A B-curve MCB, single-pole circuit breaker, DIN rail circuit breaker, NB1631NB25A
Technical Specifications
- Rated Current: 25 A
- Number of Poles: 1P
- Rated Voltage: 230 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 6 kA
- Tripping Characteristic: B curve, 3–5 × In
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4 kV
- Mounting: TH35 DIN rail
- Terminal Capacity: 1–25 mm²
- Connection: Top or bottom feed
- Ingress Protection: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Standard: IEC/EN 60898-1
- Dimensions (H x L x W): 86mm x 78mm x 18mm
- Weight: 0.12 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit currents
- B-curve operation suited to resistive loads and lighting circuits
- 6 kA rated short-circuit breaking capacity
- Single-pole modular design for residential and commercial distribution boards
- DIN rail mounting with top or bottom cable feed
- Compatible with selected CHINT auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and the equipment manufacturer's instructions.
Applications
- Domestic switchboards and distribution boards
- Commercial electrical distribution boards
- Lighting circuits
- Resistive-load circuits
- Low-voltage final circuit overcurrent protection
Standards & Compliance
- Applicable Australian and New Zealand product standard: AS/NZS 60898.1 for circuit-breakers for overcurrent protection in household and similar installations
- Installation requirements: AS/NZS 3000 Wiring Rules
Environmental Benefits
- Overcurrent protection can help prevent damage to wiring and connected equipment, reducing premature replacement and material waste
- Long mechanical service life supports extended product use
- Compact modular construction minimises enclosure material and installation space requirements
Warranty Information
CHINT warranty policy for other low-voltage apparatus provides 27 months from the date of manufacture against defects in materials and workmanship when purchased through authorised sales channels; contract terms may vary.
Available Now
Available through authorised CHINT distributors in Australia.
