Trade Discount 25%
MCB 2P 20A 6kA B Curve DIN Rail NB1-63 Chint
Chint NB1-63 2P 20A MCB features 6kA breaking capacity, B-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: 2P 20A B-Curve MCB, DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker, CHINT NB1-63/B20-2P-6
Technical Specifications
- Rated Current: 20 A
- Number of Poles: 2P
- Rated Voltage: 230/400 V AC
- Rated Frequency: 50/60 Hz
- Tripping Characteristic: B curve, 3–5 times rated current
- Rated Breaking Capacity Icn: 6 kA
- Ultimate Breaking Capacity Icu: 10 kA
- Rated Insulation Voltage: 500 V
- Rated Impulse Withstand Voltage: 4 kV
- Mounting: 35 mm EN 60715 DIN rail
- Terminal Capacity: Up to 25 mm² cable
- Connection: Top or bottom feed
- Protection Degree: IP20
- Electrical Life: Up to 4,000 operations
- Mechanical Life: Up to 20,000 operations
- Dimensions (H x L x W): 86mm x 78mm x 36mm
- Weight: 0.13 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit currents
- B-curve operation suited to resistive loads and general lighting circuits
- Two-pole switching for residential, commercial and light-industrial distribution boards
- Compact two-module DIN rail format
- Top or bottom cable connection
- Compatible with selected auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
- Installation and connection to mains electrical systems must be performed by a licensed electrician in accordance with applicable Australian wiring rules, manufacturer instructions and local certification requirements.
Applications
- Domestic distribution boards
- Commercial switchboards
- Lighting and resistive-load circuits
- General low-voltage power distribution
- Light-industrial electrical installations
Standards & Compliance
- IEC/EN 60898-1 manufacturer-declared product standard
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for comparable household and similar AC circuit-breakers; confirm local certification and RCM marking before installation
Environmental Benefits
- Long mechanical and electrical operating life can reduce replacement frequency and product waste
- Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
- Overload and short-circuit protection can help prevent damage to connected equipment and reduce premature replacement
Warranty Information
CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus when purchased through authorised sales channels, subject to the applicable customer contract and warranty terms.
Available Now
Available through authorised CHINT distributors in Australia.
