Trade Discount 25%
MCB 3P 63A 6kA C Curve DIN Rail NB1-63 Chint
Chint NB1-63 3P 63A MCB features 6kA breaking capacity, C-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: 3-Phase MCB, Triple-Pole Circuit Breaker, DIN Rail Circuit Breaker, C63 MCB
Technical Specifications
- Poles: 3P
- Rated Current: 63 A
- Tripping Characteristic: C curve, 5–10 x In
- Rated Voltage: 400 V AC between phases
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 6 kA
- Service Short-Circuit Capacity: 6 kA
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4,000 V
- Mounting: TH35-7.5 DIN rail
- Terminal Capacity: 1–25 mm²
- Connection: Top or bottom feed
- Tightening Torque: 2.0 N·m
- Protection Degree: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Operating Temperature: –5 °C to +40 °C
- Energy Limiting Class: 3
- Dimensions (H x L x W): 82mm x 75.5mm x 54mm
- Weight: 0.356 kg
Key Features
- Thermal-magnetic overload and short-circuit protection
- C-curve operation for mixed loads and circuits with moderate starting currents
- Three-pole switching for three-phase circuits
- 6 kA rated breaking capacity
- DIN rail mounting for distribution boards and control panels
- Top or bottom cable connection
- Compatible with CHINT auxiliary, alarm, shunt-release and undervoltage accessories
- Suitable for domestic, commercial and light industrial electrical installations
Professional Installation Requirements
- Installation, selection and testing should be carried out by a licensed electrician in accordance with AS/NZS 3000 and applicable state or territory electrical regulations. Verify fault level, discrimination, cable capacity and enclosure requirements before installation.
Applications
- Three-phase domestic distribution boards
- Commercial switchboards and control panels
- Light industrial distribution circuits
- Overload and short-circuit protection for mixed electrical loads
- DIN rail assemblies requiring three-pole circuit isolation
Standards & Compliance
- Designed to IEC/EN 60898-1, the international standard basis for miniature circuit breakers
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand product standard for household and similar AC circuit breakers; verify local approval and RCM status before Australian installation
- Installation must comply with AS/NZS 3000
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and product waste
- Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
- Low-voltage circuit protection supports safer, more reliable and efficiently managed electrical installations
- REACH declaration available for the NB1-63 product family
Warranty Information
CHINT warranty policy states that other low-voltage apparatus supplied through authorised sales channels is covered against defects in materials and workmanship for 27 months from the date of manufacture, subject to the applicable sales contract and warranty terms.
Available Now
Available through authorised CHINT distributors in Australia.
