Trade Discount 25%
MCB 3P 50A 6kA C Curve DIN Rail NB1-63 Chint
Chint NB1-63 3P 50A 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: CHINT NB1-63 3P C50 MCB, 50A Three-Phase Circuit Breaker, DIN Rail MCB
Technical Specifications
- Rated Current: 50 A
- Number of Poles: 3P
- Tripping Characteristic: C curve
- Rated Breaking Capacity: 6 kA
- Rated Voltage: 230/400 V AC and 240/415 V AC
- Rated Frequency: 50/60 Hz
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4 kV
- Energy Limiting Class: 3
- Terminal Capacity: Up to 25 mm² cable
- Terminal Tightening Torque: 2.0 N·m
- Protection Degree: IP20
- Electrical Endurance: 10,000 operations
- Mechanical Endurance: 20,000 operations
- Mounting: 35 mm EN 60715 DIN rail
- Connection: Top or bottom feed
- Accessories: Compatible with auxiliary, shunt, undervoltage and alarm contacts
- Dimensions (H x L x W): 86mm x 78mm x 54mm
- Weight: 0.4 kg
Key Features
- Thermal-magnetic overload and short-circuit protection
- C-curve operation suited to resistive and inductive loads with moderate inrush current
- Three-pole switching for three-phase circuits
- 6 kA short-circuit breaking capacity
- DIN rail mounting for modular switchboards
- Visual contact position indication
- Busbar-compatible terminals
- Suitable for domestic, commercial and industrial distribution systems
Professional Installation Requirements
- Installation, selection and testing must be carried out by a licensed electrician in accordance with AS/NZS 3000, the equipment manufacturer's instructions and applicable local requirements.
Applications
- Three-phase domestic distribution boards
- Commercial switchboards
- Industrial electrical distribution systems
- Protection of lighting, power and general-purpose circuits
- Overload and short-circuit protection for resistive and inductive loads
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for AC miniature circuit-breakers for household and similar installations
- Electrical installation and selection requirements apply under AS/NZS 3000
- Manufacturer specification references IEC/EN 60898-1; verify Australian certification and RCM requirements for the supplied unit
Environmental Benefits
- Long mechanical and electrical endurance can reduce replacement frequency and associated waste
- Copper and other metal components are recoverable through appropriate electrical-equipment recycling streams
- DIN rail modular construction supports replacement of the individual protective device rather than an entire switchboard assembly
Warranty Information
CHINT warranty policy for other low-voltage apparatus states a 27-month warranty from the date of manufacture against defects in materials and workmanship when purchased through authorised sales channels; confirm applicable terms with the supplying distributor.
Available Now
Available through authorised CHINT distributors in Australia.
