Trade Discount 25%
MCB 3P 40A 10kA C Curve DIN Rail NB1-63H Chint
Chint NB1-63H 3P 40A MCB features 10kA 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: 3P MCB, Three-Phase Circuit Breaker, DIN Rail MCB, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Rated Current: 40 A
- Poles: 3P
- Tripping Curve: C curve, 5–10 times rated current
- Breaking Capacity: 10 kA
- Rated Voltage: 230/400 V AC or 240/415 V AC
- Rated Frequency: 50/60 Hz
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4 kV
- Energy Limiting Class: 3
- Protection Degree: IP20
- Electrical Life: 10,000 operations
- Mechanical Life: 20,000 operations
- Mounting: 35 mm DIN rail to EN 60715
- Terminal Connection: Cable, U-type busbar or pin-type busbar
- Terminal Tightening Torque: 2.0 N·m
- Standard Basis: IEC/EN 60898-1; 10 kA performance also referenced under IEC/EN 60947-2
- Dimensions (H x L x W): 86mm x 78mm x 54mm
- Weight: 0.33 kg
Key Features
- Three-pole protection for three-phase circuits
- Thermal-magnetic protection against overload and short-circuit currents
- C-curve operation suitable for resistive and inductive loads with moderate inrush current
- 10 kA short-circuit breaking capacity
- Fast-clip mounting on standard 35 mm DIN rail
- Switching and circuit isolation function
- Contact position indication
- Top or bottom cable connection
- Compatible with CHINT auxiliary, shunt-trip, undervoltage-release and alarm accessories
Professional Installation Requirements
- Installation, selection and testing should be carried out by a licensed electrical contractor in accordance with AS/NZS 3000, the switchboard manufacturer's requirements and CHINT installation instructions. Confirm the prospective fault current and required Australian approvals before installation.
Applications
- Domestic switchboards and distribution boards
- Commercial electrical distribution systems
- Three-phase final subcircuits
- Overload and short-circuit protection for resistive and inductive loads
- Industrial low-voltage distribution panels
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for household and similar-installation AC circuit-breakers; verify product-specific RCM or other Australian approval before installation
- AS/NZS 3000 applies to the selection, installation and verification of the complete electrical installation
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and associated material waste
- Replaceable modular construction allows the protective device to be changed without replacing the complete switchboard
- Metal and thermoplastic components can be separated for appropriate end-of-life recycling where recycling facilities accept electrical equipment
- CHINT documentation includes RoHS-related declarations for the NB1-63H series
Warranty Information
CHINT warranty policy for other low-voltage apparatus provides coverage against defects in materials and workmanship for 27 months from the date of manufacture when supplied through authorised sales channels, subject to the applicable warranty terms.
Available Now
Available through authorised CHINT distributors in Australia.
