Trade Discount 25%
MCB 2P 63A 6kA D Curve DIN Rail NB1-63 Chint
Chint NB1-63 2P 63A 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: 2P 63A D-Curve MCB, DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker, CHINT NB1-63 D63
Technical Specifications
- Poles: 2P
- Rated Current: 63 A
- Rated Voltage: 400 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 6 kA
- Tripping Curve: D curve, 10–14 × In
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4 kV
- Release Type: Thermal-magnetic
- Mounting: TH35-7.5 DIN rail
- Terminal Capacity: 1–25 mm²
- Terminal Tightening Torque: 2.0 N·m
- Protection Degree: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Feed Direction: Top or bottom connection
- Product Code: 179682
- Dimensions (H x L x W): 82mm x 75.5mm x 36mm
- Weight: 0.1 kg
Key Features
- Two-pole circuit protection for simultaneous switching and isolation
- Protects against overload and short-circuit currents
- D-curve characteristic suits high-inrush loads such as transformers and selected motor circuits
- 6 kA rated short-circuit breaking capacity
- Compact two-module DIN rail format
- Compatible with selected auxiliary, alarm, shunt-release and undervoltage accessories
- Suitable for residential, commercial and light-industrial distribution boards
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and applicable local electrical requirements. Confirm prospective fault current, cable capacity, discrimination and suitability of the D-curve characteristic before installation.
Applications
- Residential switchboards and distribution boards
- Commercial electrical distribution boards
- Light-industrial control and distribution panels
- Circuits supplying transformers and other high-inrush loads
- DIN rail-mounted overcurrent protection and circuit isolation
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for AC miniature circuit-breakers for household and similar installations; verify the supplied variant’s Australian approval and marking before use.
- Designed to IEC/EN 60898-1 requirements.
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and material waste
- Metal components can be recovered through appropriate electrical equipment recycling streams
- RoHS-related restricted-substance documentation is available for the NB1-63 series
- Supports safe, efficient electrical distribution by limiting damage from overloads and short circuits
Warranty Information
CHINT general warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, subject to authorised sales channels, contract terms and exclusions for improper installation, misuse or unauthorised repair.
Available Now
Available through authorised CHINT distributors in Australia.
