Trade Discount 25%
MCB 3P 50A 10kA D Curve DIN Rail NB1-63H Chint
Chint NB1-63H 3P 50A 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: Three-Pole Miniature Circuit Breaker, 50A D-Type MCB, DIN Rail Circuit Breaker, NB1-63H D50
Technical Specifications
- Rated Current: 50 A
- Number of Poles: 3P
- Rated Voltage: 230/400–240/415 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 10 kA
- Tripping Characteristic: D curve, 10–20 x In magnetic trip range
- Protection Type: Thermal-magnetic overload and short-circuit protection
- Standard: IEC/EN 60898-1
- Energy Limiting Class: 3
- Insulation Voltage: 500 V
- Terminal Capacity: Up to 25 mm²
- Tightening Torque: 2.5 N·m
- Mounting: 35 mm DIN rail to EN 60715
- Terminal Arrangement: Top or bottom feed
- Ingress Protection: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Operating Temperature: -25°C to +70°C
- Dimensions (H x L x W): 80mm x 78mm x 54mm
- Weight: 0.358 kg
Key Features
- Three-pole protection for compatible three-phase circuits
- D-curve characteristic suited to circuits with higher inrush currents
- 10 kA short-circuit breaking capacity
- Thermal-magnetic protection against overloads and short circuits
- Positive isolation and manual switching capability
- Compact modular design for switchboards and consumer units
- Compatible with cable, U-type busbar and pin-type busbar connections
- DIN rail clip mounting for straightforward switchboard assembly
Professional Installation Requirements
- Installation and connection must be carried out by a licensed electrician in accordance with the applicable edition of AS/NZS 3000, local electrical safety legislation, equipment ratings and manufacturer instructions. Confirm fault levels, discrimination, conductor size and required Australian approval or marking before installation.
Applications
- Residential switchboards
- Commercial distribution boards
- Industrial control panels
- Three-phase motor and transformer circuits with suitable inrush characteristics
- Overload and short-circuit protection in low-voltage AC distribution systems
Standards & Compliance
- Manufacturer-declared compliance with IEC/EN 60898-1, the international product standard corresponding to the AS/NZS 60898.1 series; verify the specific unit's Australian/New Zealand approval and required marking before installation
- Installations must comply with the applicable edition of AS/NZS 3000
Environmental Benefits
- Long service life can reduce replacement frequency and associated material waste
- Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
- Provides reliable circuit protection that can help reduce damage to connected equipment during overload or short-circuit events
Warranty Information
CHINT's general warranty policy for other low-voltage apparatus specifies 27 months from the date of manufacture when supplied through authorised sales channels. Contractual terms and local distributor conditions may vary.
Available Now
Available through authorised CHINT distributors in Australia.
