Why Choose the Chint NBH8-40-B40 Miniature Circuit Breaker?
The Chint NBH8-40-B40 is a compact and dependable 40 A miniature circuit breaker (MCB) designed to provide overload and short-circuit protection for low voltage electrical circuits. As part of the Chint NBH8-40 series, it delivers reliable protection and safe circuit isolation for residential, commercial and light industrial electrical installations.
Featuring a B curve tripping characteristic, this MCB is ideal for circuits with low inrush current, including lighting circuits, general socket outlets and resistive loads. Its compact 1P+N configuration combines live conductor protection with neutral switching, helping reduce installation space within modern distribution boards.
With a rated current of 40 A and a 230/240 V AC operating voltage, the NBH8-40-B40 offers dependable protection while supporting straightforward DIN rail installation in consumer units, switchboards and control panels.
Key Advantages
- Compact 40 A miniature circuit breaker for final circuit protection.
- B curve tripping characteristic for low inrush current applications.
- 1P+N configuration combines live protection with neutral switching.
- Protects against overload and short-circuit faults.
- Suitable for 230/240 V AC low voltage distribution systems.
- DIN rail mounting for quick installation in electrical distribution boards.
Key Features
- Chint NBH8-40 miniature circuit breaker series.
- 40 A rated current.
- B curve trip characteristic.
- 1P+N pole configuration.
- 230/240 V AC rated operational voltage.
- Provides overload and short-circuit protection.
- Suitable for circuit isolation and switching.
- Compact modular DIN rail design.
Reliable Protection for Low Voltage Circuits
Miniature circuit breakers such as the Chint NBH8-40-B40 automatically disconnect the electrical supply when overload or short-circuit conditions occur. This helps protect wiring, connected equipment and electrical installations while improving overall safety and system reliability.
The B curve trip characteristic is intended for circuits with relatively low inrush current, making the NBH8-40-B40 suitable for lighting, socket outlets, distribution circuits and other general electrical applications where dependable protection is essential.
Typical Applications
- Residential consumer units and distribution boards.
- Commercial electrical installations.
- Lighting and socket outlet circuits.
- General low voltage power distribution.
- Electrical control panels.
- Circuit isolation and protection applications.
