Trade Discount 25%
MCB 3P 20A 10kA C Curve DIN Rail NB1-63H Chint
Chint NB1-63H 3P 20A MCB features 10kA breaking capacity, C-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
Please sign in so that we can notify you about a reply
Sign in
Please login to continue to your account.
Alternatively Known As: 3P MCB, Three-Phase Miniature Circuit Breaker, DIN Rail Circuit Breaker, C20 MCB
Technical Specifications
- Poles: 3P
- Rated Current: 20 A
- Tripping Curve: C curve, 5–10 × In magnetic trip range
- Rated Voltage: AC 230/400–240/415 V
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 10 kA Icu
- Service Breaking Capacity: 7.5 kA Ics
- Insulation Voltage: 500 V Ui
- Impulse Withstand Voltage: 6 kV Uimp
- Energy Limiting Class: 3
- Terminal Capacity: Up to 25 mm² cable
- Tightening Torque: 2.5 N·m
- Mounting: 35 mm DIN rail to EN 60715
- Protection Degree: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 10,000 operations
- Connection: Top or bottom feed
- Dimensions (H x L x W): 78mm x 80mm x 54mm
- Weight: 0.5 kg
Key Features
- Thermal-magnetic overload and short-circuit protection
- Three-pole protection for three-phase circuits
- 10 kA rated short-circuit breaking capacity
- C-curve characteristic for general commercial and light industrial loads
- Compatible with cable, U-type busbar and pin-type busbar connections
- DIN rail mounting with top or bottom feed capability
- Optional auxiliary, alarm, shunt-release and undervoltage accessories available
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000 and applicable local requirements. Confirm prospective fault current, discrimination and enclosure suitability before installation.
Applications
- Residential distribution boards
- Commercial switchboards and consumer units
- Three-phase lighting and power circuits
- HVAC and motor-related control circuits where a C-curve device is suitable
- Industrial distribution and control panels
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand product standard for household and similar AC miniature circuit-breakers; verify product-specific Australian approval and RCM requirements before installation
- AS/NZS 3000 Wiring Rules apply to selection, installation and testing within Australian electrical installations
Environmental Benefits
- Thermal-magnetic protection can help prevent damage to wiring and connected equipment, reducing premature replacement
- Long mechanical and electrical service life can reduce product waste over the installation lifecycle
- Compact DIN rail construction reduces material use and enclosure space compared with larger protective devices
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.
