Trade Discount 25%
MCB 2P 40A 6kA C Curve DIN Rail NB1-63 Chint
Chint NB1-63 2P 40A 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: 2P 40A MCB, C40 Circuit Breaker, DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Poles: 2P
- Rated Current: 40 A
- Tripping Curve: C curve, 5–10 times rated current
- Rated Voltage: 400 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 6 kA
- Service Short-Circuit Capacity: 6 kA
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4 kV
- Mounting: TH35-7.5 DIN rail
- Terminal Capacity: 1–25 mm²
- Terminal Tightening Torque: 2.0 N·m
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Ingress Protection: IP20
- Operating Temperature: -5°C to +40°C
- Connection: Top or bottom feed
- Dimensions (H x L x W): 82mm x 75.5mm x 36mm
- Weight: 0.24 kg
Key Features
- Two-pole protection and isolation for AC circuits
- Thermal-magnetic overload and short-circuit protection
- C-curve characteristic suited to mixed loads and moderate motor starting currents
- 6 kA rated breaking capacity
- Compact modular design for standard DIN rail distribution boards
- Compatible with selected auxiliary, alarm, shunt-release and undervoltage accessories
- Suitable for residential, commercial and light industrial electrical distribution
Professional Installation Requirements
- Installation, circuit selection and testing must be carried out by a licensed electrician in accordance with applicable wiring rules, manufacturer instructions and local electrical regulations. Confirm prospective fault current, conductor capacity and coordination before installation.
Applications
- Residential distribution boards
- Commercial electrical switchboards
- Light industrial control and distribution panels
- Mixed-load circuits
- Circuits supplying small motors and equipment with moderate starting current
- Overload and short-circuit protection in low-voltage AC installations
Standards & Compliance
- AS/NZS 60898.1:2004 — applicable standard for miniature overcurrent circuit-breakers for household and similar installations; confirm the supplied unit carries the applicable Australian RCM/SAA marking.
- IEC/EN 60898-1 — manufacturer-listed product standard
Environmental Benefits
- Long mechanical and electrical service life can reduce replacement frequency and associated material waste
- Metal and thermoplastic components may be recoverable through appropriate electrical equipment recycling streams
- Thermal-magnetic operation provides protection without requiring an external control power supply
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 policy terms and conditions.
Available Now
Available through authorised CHINT distributors in Australia.
