Trade Discount 25%
MCB 1P 40A 6kA C Curve DIN Rail NB1-63 Chint
Chint NB1-63 1P 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: CHINT NB1-63 MCB, 40A DIN Rail Circuit Breaker, Single-Pole Thermal-Magnetic Circuit Breaker
Technical Specifications
- Rated Current: 40 A
- Number of Poles: 1P
- Rated Voltage: 230 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 6 kA
- Tripping Characteristic: C curve, 5–10 times rated current
- Insulation Voltage: 500 V
- Impulse Withstand Voltage: 4 kV
- Connection: Top or bottom feed
- Terminal Capacity: 1–25 mm² cable
- Terminal Tightening Torque: 2.0 N·m
- Mounting: TH35-7.5 DIN rail
- 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 18mm
- Weight: 0.12 kg
Key Features
- Thermal-magnetic protection against overload and short-circuit currents
- C-curve operation suited to mixed loads and circuits with moderate inrush current
- 6 kA rated short-circuit breaking capacity
- Single-pole configuration for compact distribution-board installation
- DIN rail mounting with top or bottom cable connection
- Can be used for circuit isolation and infrequent switching
- Compatible with selected CHINT auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
- Installation and connection to mains wiring must be performed by a licensed electrician in accordance with AS/NZS 3000 and the product installation instructions. Confirm fault levels, discrimination and suitability for the specific installation before selection.
Applications
- Domestic switchboards and distribution boards
- Commercial electrical distribution boards
- Lighting and general power circuits
- Control panels and low-voltage AC installations
- Overload and short-circuit protection for mixed-load circuits
Standards & Compliance
- IEC/EN 60898-1 product standard
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for household and similar AC miniature circuit breakers; verify approval and RCM requirements for the exact Australian SKU
- Installation must comply with AS/NZS 3000
Environmental Benefits
- Metallic components such as copper and steel can be recovered through appropriate electrical-equipment recycling streams
- Reusable reset operation reduces replacement waste after transient overloads or short-circuit events
- Long mechanical and electrical life can reduce replacement frequency over the product service life
Warranty Information
CHINT general warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, subject to authorised sales channels, contract terms and applicable warranty conditions.
Available Now
Available through authorised CHINT distributors in Australia.
