Why Choose the Chint NB1-63BH3P63 Miniature Circuit Breaker?
The Chint NB1-63BH3P63 is a compact and dependable miniature circuit breaker (MCB) designed to protect low voltage electrical circuits against overloads and short circuits. As part of the Chint NB1-63H series, it provides reliable circuit protection for residential, commercial and industrial electrical installations where a higher breaking capacity is required.
This 3 pole B curve MCB features a 63 A rated current, making it suitable for three-phase distribution boards, lighting circuits, control circuits and low inrush power applications. The B curve tripping characteristic is designed for resistive loads and circuits with low inrush current.
With a rated short-circuit breaking capacity of 10 kA and a standard 35 mm DIN rail mounting format, the NB1-63BH3P63 is easy to install within distribution boards and electrical control panels. Its 3 pole design provides simultaneous isolation and protection across all three phases.
Key Advantages
- Compact 3 pole miniature circuit breaker.
- 63 A rated current for three-phase circuits.
- B curve trip characteristic for resistive loads.
- 10 kA short-circuit breaking capacity.
- Reliable overload and short-circuit protection.
- DIN rail installation in distribution boards and control panels.
Key Features
- Chint NB1-63H series MCB.
- 63 A rated current.
- B curve tripping characteristic.
- 3 pole configuration.
- 10 kA breaking capacity.
- 400 V AC rated voltage.
- 35 mm DIN rail mounting.
- Suitable for overload, short-circuit protection and circuit isolation.
Reliable Protection for Three-Phase Circuits
Miniature circuit breakers such as the Chint NB1-63BH3P63 automatically disconnect electrical circuits when overloads or short circuits occur. This helps protect wiring, connected equipment and electrical installations from excessive current and fault conditions.
The B curve characteristic trips between three and five times the rated current, making it suitable for resistive loads, lighting circuits, control systems and distribution circuits with minimal inrush current.
Typical Applications
- Three-phase distribution boards.
- Industrial control panels.
- Lighting circuits.
- Control and signalling circuits.
- Cable protection.
- Electrical installations requiring 63 A three-phase protection.
