Trade Discount 25%
MCB 2P 50A 10kA B Curve DIN Rail NB1-63H Chint
Chint NB1-63H 2P 50A 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 2P B50 MCB, 2-Pole DIN Rail Circuit Breaker, 50A B-Type MCB
Technical Specifications
- Rated Current: 50 A
- Number of Poles: 2P
- Tripping Characteristic: B curve, 3–5 In
- Rated Voltage: AC 230/400–240/415 V
- Rated Frequency: 50/60 Hz
- Rated Short-Circuit Breaking Capacity: 10 kA
- Rated Insulation Voltage: 500 V
- Rated Impulse Withstand Voltage: 6 kV
- Energy Limiting Class: 3
- Terminal Capacity: Up to 25 mm²
- Tightening Torque: 2.5 N·m
- Mounting: 35 mm EN 60715 DIN rail
- Connection: Top or bottom feed
- Protection Degree: IP20
- Operating Temperature: −25 °C to +70 °C
- Electrical Life: 10,000 operations
- Mechanical Life: 20,000 operations
- Dimensions (H x L x W): 86mm x 36mm x 78mm
- Weight: 0.22 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit faults
- B-curve tripping characteristic for general domestic and commercial circuits
- 10 kA rated short-circuit breaking capacity
- Two-pole switching and isolation
- Compact modular design for switchboards and distribution boards
- Compatible with cable, U-type busbar and pin-type busbar connections
- Top or bottom feed connection permitted
- Optional auxiliary, alarm, shunt-release and under-voltage accessories available
Professional Installation Requirements
- Installation and connection must be performed by a licensed electrician in accordance with AS/NZS 3000, applicable electrical regulations and the manufacturer's installation instructions. Confirm prospective fault current, conductor sizing, discrimination and local conformity requirements before installation.
Applications
- Residential consumer units and distribution boards
- Commercial electrical switchboards
- General lighting and power circuits
- Low-voltage AC distribution systems
- Control panels and industrial electrical distribution boards
Standards & Compliance
- The applicable Australian/New Zealand product standard is AS/NZS 60898.1:2024 for circuit-breakers for overcurrent protection in household and similar AC installations; verify model-specific conformity and RCM approval before use in Australia.
- Installation and selection should comply with AS/NZS 3000 Wiring Rules.
Environmental Benefits
- RoHS-declared product range helps restrict hazardous substances in electrical equipment
- Metal and thermoplastic components can be separated for recycling at end of service life
- Long mechanical and electrical life can reduce replacement frequency and material waste
- Provides circuit protection that can help limit damage to connected electrical equipment
Warranty Information
CHINT's general warranty policy specifies 27 months from the date of manufacture for other low-voltage apparatus when sold through authorised channels; contract-specific terms may apply.
Available Now
Available through authorised CHINT distributors in Australia.
