Trade Discount 25%
MCB 2P 50A 6kA B Curve DIN Rail NB1-63 Chint
Chint NB1-63 2P 50A 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: CHINT NB1-63 B50 MCB, 2P 50A Circuit Breaker, DIN Rail Miniature Circuit Breaker, CHINT 179652
Technical Specifications
- Product Type: Miniature circuit breaker
- Rated Current: 50A
- Number of Poles: 2P
- Tripping Curve: B curve, thermo-magnetic
- 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 Degree: IP20
- Electrical Life: 10,000 operations
- Mechanical Life: 20,000 operations
- Mounting: 35mm DIN rail to EN 60715
- Terminal Capacity: Up to 25mm² cable
- Reference Code: 179652
- Dimensions (H x L x W): 80mm x 78mm x 36mm
- Weight: 0.22 kg
Key Features
- Overload and short-circuit protection for low-voltage AC circuits
- B-curve thermal-magnetic release characteristic
- Suitable for resistive loads such as lighting and heating circuits
- Two-pole design for simultaneous circuit isolation
- 6kA rated short-circuit breaking capacity
- Compatible with cable, U-type busbar and pin-type busbar connections
- Top or bottom cable connection
- Contact position indication
- Compact modular format for domestic and commercial switchboards
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrician in accordance with applicable Australian wiring rules, manufacturer instructions and switchboard requirements. Confirm that the breaker rating and B-curve characteristic suit the protected circuit before installation.
Applications
- Domestic distribution boards
- Commercial switchboards
- Lighting circuits
- Heating circuits
- General low-voltage distribution circuits
- Overload and short-circuit protection in modular electrical enclosures
Standards & Compliance
- AS/NZS 60898.1:2004 for circuit-breakers for overcurrent protection in household and similar installations
- AS/NZS 3000:2018 wiring rules apply to the complete electrical installation
Environmental Benefits
- Resettable protection reduces the need for disposable fuse replacements and associated consumable waste
- Long mechanical service life can reduce replacement frequency
- Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams at end of life
Warranty Information
CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus sold through authorised sales channels, subject to the applicable sales agreement and warranty conditions.
Available Now
Available through authorised CHINT distributors in Australia.
