Trade Discount 25%
MCB 1P 50A 10kA B Curve DIN Rail NB1-63H Chint
Chint NB1-63H 1P 50A 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: CHINT NB1-63H B50 MCB, Single-Pole Circuit Breaker, DIN Rail MCB
Technical Specifications
- Rated Current: 50 A
- Poles: 1P
- Trip Curve: B curve, instantaneous magnetic trip at 3–5 times rated current
- Rated Voltage: 230/400–240/415 V AC
- Rated Frequency: 50/60 Hz
- Breaking Capacity: 10 kA Icn; 7.5 kA Ics
- Energy Limiting Class: 3
- Mounting: TH35-7.5 35 mm DIN rail
- Terminal Capacity: 1–25 mm² conductors
- Terminal Tightening Torque: 2.0 N·m
- Connection: Top or bottom feed
- Protection Degree: IP20
- Mechanical Life: 20,000 operations
- Electrical Life: 4,000 operations
- Dimensions (H x L x W): 82mm x 75.5mm x 18mm
- Weight: 0.12 kg
Key Features
- Single-pole protection for phase conductors
- Thermal-magnetic overload and short-circuit protection
- B-curve characteristic suited to resistive loads and lighting circuits
- 10 kA rated short-circuit breaking capacity
- Positive isolation indication
- One DIN module wide for compact switchboard layouts
- Compatible with selected CHINT auxiliary, alarm, shunt-release and undervoltage accessories
Professional Installation Requirements
- Installation, testing and commissioning must be performed by a licensed electrician in accordance with applicable wiring rules, switchboard requirements and manufacturer instructions. Confirm fault levels, cable capacity, discrimination and required Australian approval markings before use.
Applications
- Domestic distribution boards
- Commercial switchboards
- Lighting circuits
- Resistive appliance circuits
- General low-voltage AC final circuits
- Replacement or expansion of compatible DIN rail MCB assemblies
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for AC circuit-breakers for household and similar installations; verify the individual product has the required Australian approval and RCM marking before installation
- IEC/EN 60898-1 manufacturer-declared product standard
Environmental Benefits
- RoHS-related compliance documentation is available for the NB1-63H range, supporting restriction of hazardous substances
- Reusable and recyclable metal and thermoplastic construction at end of service life
- Long mechanical and electrical service life can reduce replacement frequency and material waste
- Overload and short-circuit protection helps prevent damage to downstream electrical equipment
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 applicable policy terms and conditions.
Available Now
Available through authorised CHINT distributors in Australia.
