Trade Discount 25%
MCB 3P 25A 6kA C Curve DIN Rail NB1-63 Chint
Chint NB1-63 3P 25A 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 C25 MCB, 3-Phase DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Poles: 3P
- Rated Current: 25 A
- Rated Voltage: 400 V AC three-phase
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 6 kA
- Tripping Characteristic: C curve, 5–10 × In
- Rated Insulation Voltage: 500 V
- Rated Impulse Withstand Voltage: 4 kV
- Standard: IEC/EN 60898-1
- Mounting: TH35-7.5 DIN rail
- Terminal Capacity: 1–25 mm²
- Connection: Top or bottom feed
- Protection Degree: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Energy Limiting Class: 3
- Dimensions (H x L x W): 82mm x 75.5mm x 54mm
- Weight: 0.356 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit currents
- C-curve characteristic for mixed loads, socket circuits and small motors
- Three-pole configuration for three-phase circuit protection
- 6 kA rated short-circuit breaking capacity
- Compatible with auxiliary, alarm, shunt-release and undervoltage accessories
- Top or bottom cable connection
- DIN rail clip mounting for modular distribution boards
Professional Installation Requirements
- Installation and connection to mains electrical systems must be performed by a licensed electrician in accordance with applicable Australian wiring rules and local electrical regulations.
Applications
- Domestic switchboards and distribution boards
- Commercial electrical panels
- Three-phase lighting and power circuits
- Mixed-load circuits with moderate inrush current
- Light industrial electrical distribution systems
Standards & Compliance
- AS/NZS 60898.1:2024, the applicable Australian/New Zealand product standard for AC miniature circuit-breakers for household and similar installations
- AS/NZS 3000 for selection, installation and verification within Australian electrical installations
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and associated waste
- Metal components are recyclable at end of service life
- Supports reliable circuit protection that can help prevent damage to connected electrical equipment
Warranty Information
27 months from the date of manufacture against defects in materials and workmanship when purchased through authorised sales channels; contractual terms may vary.
Available Now
Available through authorised CHINT distributors in Australia.
