Trade Discount 25%
MCB 3P 40A 10kA B Curve DIN Rail NB1-63H Chint
Chint NB1-63H 3P 40A MCB features 10kA breaking capacity, B-curve thermal-magnetic protection and DIN rail mount to IEC 60898. For domestic and commercial boards.
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Alternatively Known As: Three-Phase Miniature Circuit Breaker, 3P MCB, DIN Rail Circuit Breaker, Thermal-Magnetic Circuit Breaker
Technical Specifications
- Rated Current: 40 A
- Number of Poles: 3P
- Tripping Curve: B curve
- Rated Breaking Capacity: 10 kA
- Rated Voltage: 230/400–240/415 V AC
- Rated Frequency: 50/60 Hz
- Insulation Voltage: 500 V
- Energy Limiting Class: 3
- Rated Impulse Withstand Voltage: 4 kV
- Dielectric Test Voltage: 2 kV for 1 minute
- Protection Degree: IP20
- Terminal Capacity: 1–25 mm² cable
- Tightening Torque: 2.0 N·m
- Mounting: 35 mm EN 60715 DIN rail
- Electrical Endurance: Up to 10,000 operations
- Mechanical Endurance: Up to 20,000 operations
- Dimensions (H x L x W): 80mm x 54mm x 78mm
- Weight: 0.33 kg
Key Features
- Thermal-magnetic protection against overload and short circuit conditions
- Three-pole switching for three-phase distribution circuits
- 10 kA short-circuit breaking capacity
- B-curve characteristic suited to general domestic and commercial circuits
- Compact three-module DIN rail format
- Contact position indication for easier isolation checks
- Top or bottom cable and busbar connection
- Compatible with selected CHINT auxiliary, shunt, undervoltage and alarm accessories
Professional Installation Requirements
- Installation and connection must be carried out by a licensed electrician in accordance with AS/NZS 3000, applicable switchboard requirements and the manufacturer's instructions. Confirm prospective fault current, cable capacity and coordination before installation.
Applications
- Domestic distribution boards
- Commercial switchboards
- Three-phase lighting and power circuits
- General final circuits with low to moderate inrush current
- Industrial and building-services control panels
Standards & Compliance
- AS/NZS 60898.1 is the applicable Australian/New Zealand product standard for miniature circuit breakers; product documentation identifies IEC/EN 60898-1 and the NB1-63H series has Australian SAA certification documentation.
- Installation should comply with AS/NZS 3000 Wiring Rules and applicable state or territory electrical safety requirements.
Environmental Benefits
- RoHS documentation supports restriction of hazardous substances in the product
- Long mechanical and electrical endurance can reduce replacement frequency and associated waste
- Metal components such as copper and steel can be recovered through appropriate electrical equipment recycling
- Low-voltage circuit protection supports safe operation of energy-efficient electrical systems
Warranty Information
CHINT warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, when sold through authorised sales channels, covering defects in materials and workmanship subject to the policy terms.
Available Now
Available through authorised CHINT distributors in Australia.
