Trade Discount 25%
MCB 2P 32A 6kA D Curve DIN Rail NB1-63 Chint
Chint NB1-63 2P 32A MCB features 6kA breaking capacity, D-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: 2P 32A D-Curve MCB, NB1-63/D32-2P-6, DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Product Series: NB1-63
- Poles: 2P
- Rated Current: 32 A
- Tripping Curve: D curve
- 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
- Thermal-Magnetic Protection: Overload and short-circuit protection
- Mounting: TH35 DIN rail
- Terminal Capacity: 1–25 mm²
- Connection: Top or bottom feed
- Ingress Protection: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Power Dissipation: Approximately 7 W
- Manufacturer Reference: 179677
- Dimensions (H x L x W): 86mm x 78mm x 36mm
- Weight: 0.22 kg
Key Features
- Two-pole switching and protection for single-phase circuits
- D-curve magnetic tripping characteristic for high-inrush loads such as transformers and motors
- 6 kA rated short-circuit breaking capacity
- Thermal-magnetic protection against overload and short circuit
- Compact two-module DIN rail format
- Contact position indication for easier circuit identification
- Compatible with selected auxiliary, alarm, shunt-release and undervoltage accessories
- Suitable for residential, commercial and light industrial distribution boards
Professional Installation Requirements
- Installation, testing and commissioning should be performed by a licensed electrician in accordance with AS/NZS 3000 and the switchboard manufacturer's requirements. Confirm the available fault level, conductor size, discrimination and suitability of the D-curve characteristic before installation.
Applications
- Domestic distribution boards
- Commercial switchboards
- Light industrial control and distribution panels
- Motor and transformer circuits with high starting or magnetising current
- Overload and short-circuit protection for low-voltage AC circuits
Standards & Compliance
- IEC/EN 60898-1 manufacturer specification for miniature circuit breakers
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand product standard for AC circuit breakers in this category; verify Australian approval and RCM requirements before installation
- AS/NZS 3000 applies to installation and wiring practices
Environmental Benefits
- Modular construction allows replacement of the individual protective device rather than the complete switchboard assembly
- Long mechanical service life can reduce replacement frequency and associated material waste
- Metal and thermoplastic components can be separated for recycling at end of service life
- Supports safe and efficient electrical distribution by limiting damage from overloads and short circuits
Warranty Information
CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, covering defects in materials and workmanship when purchased through authorised sales channels. Contractual terms and Australian distributor conditions may vary.
Available Now
Available through authorised CHINT distributors in Australia.
