Trade Discount 25%
MCB 2P 20A 10kA B Curve DIN Rail NB1-63H Chint
Chint NB1-63H 2P 20A 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: 2P 20A MCB, Double-Pole Circuit Breaker, DIN Rail MCB, B20 10kA MCB
Technical Specifications
- Rated Current: 20 A
- Number of Poles: 2P
- Tripping Curve: B curve, 3–5 × In
- Ultimate Short-Circuit Breaking Capacity: 10 kA
- Rated Voltage: 230/400 V AC
- Frequency: 50/60 Hz
- Protection Type: Thermal-magnetic overload and short-circuit protection
- Installation: 35 mm DIN rail mounting
- Terminal Capacity: Up to 25 mm² conductors
- Ingress Protection: IP20
- Product Standard: IEC/EN 60898-1
- Dimensions (H x L x W): 78mm x 72mm x 36mm
- Weight: 0.2 kg
Key Features
- Two-pole switching and overcurrent protection
- B-curve tripping characteristic for domestic and general-purpose circuits
- 10 kA ultimate short-circuit breaking capacity
- Thermal-magnetic protection against overloads and short circuits
- Suitable for domestic, commercial and light industrial distribution boards
- DIN rail mounting with line and load connection flexibility
- Can be used as a circuit protection, switching and isolation device
Professional Installation Requirements
- Installation, testing and replacement must be performed by a licensed electrician in accordance with AS/NZS 3000, the switchboard manufacturer's requirements and applicable local regulations.
Applications
- Domestic consumer units and distribution boards
- Commercial electrical distribution boards
- Light industrial control and distribution panels
- Final circuits requiring B-curve overcurrent protection
- Circuit isolation and switching within low-voltage AC installations
Standards & Compliance
- AS/NZS 60898.1:2024 is the applicable Australian/New Zealand standard for household and similar AC miniature circuit-breakers; confirm current Australian approval and RCM requirements before installation.
Environmental Benefits
- Metal components can be recovered and recycled at end of service life
- Durable thermal-magnetic construction can reduce replacement frequency and electrical waste
- RoHS-related restricted-substance documentation is available for the NB1-63H product family
Warranty Information
CHINT warranty policy covers other low-voltage apparatus against defects in materials and workmanship for 27 months from the date of manufacture when supplied through authorised sales channels; contract-specific terms may apply.
Available Now
Available through authorised CHINT distributors in Australia.
