Why Choose the Chint NB1-63CH2P40 Miniature Circuit Breaker?
The Chint NB1-63CH2P40 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 2 pole C curve MCB features a 40 A rated current, making it suitable for higher current radial circuits, socket circuits, distribution boards, control circuits and moderately inductive loads. The C curve tripping characteristic allows for moderate inrush currents, making it suitable for mixed resistive and inductive applications.
With a rated short-circuit breaking capacity of 10 kA and a standard 35 mm DIN rail mounting format, the NB1-63CH2P40 is easy to install within consumer units, distribution boards and electrical control panels. Its 2 pole design enables simultaneous disconnection of both conductors for improved circuit isolation.
Key Advantages
- Compact 2 pole miniature circuit breaker.
- 40 A rated current for higher current circuits.
- C curve trip characteristic for moderate inrush current 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.
- 40 A rated current.
- C curve tripping characteristic.
- 2 pole configuration.
- 10 kA breaking capacity.
- 230 / 400 V AC rated voltage.
- DIN rail mounting.
- Suitable for overload, short-circuit protection and circuit isolation.
Reliable Protection for Mixed Load Circuits
Miniature circuit breakers such as the Chint NB1-63CH2P40 automatically disconnect electrical circuits when overloads or short circuits occur. This helps protect wiring, connected equipment and electrical installations from damage caused by excessive current.
The C curve characteristic makes this MCB suitable for circuits with moderate inrush currents, including higher current radial circuits, socket circuits, distribution boards, control panels, relays, small transformers and mixed electrical loads where a B curve device may nuisance trip.
Typical Applications
- Residential consumer units.
- Commercial distribution boards.
- Higher current radial circuits.
- Socket outlet circuits.
- Control and auxiliary circuits.
- Electrical installations requiring 40 A protection.
