Why Choose the Chint NBH8-40-B25 Miniature Circuit Breaker?
The Chint NBH8-40-B25 is a compact and reliable 25 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 is suitable for residential, commercial and light industrial power distribution applications where dependable circuit protection and safe isolation are required.
This MCB features a B curve tripping characteristic, making it well suited to general electrical circuits with low inrush current, including lighting circuits, small power distribution and resistive loads. Its compact 1P+N configuration helps protect the live conductor while providing convenient switching of both live and neutral within a single modular device.
With a rated current of 25 A and a 230/240 V AC supply rating, the NBH8-40-B25 is designed for use in final distribution boards and consumer unit-style installations. Its DIN rail mounting format allows quick and secure installation in electrical panels while maintaining a neat, professional layout.
Key Advantages
- Compact 25 A miniature circuit breaker for final circuit protection.
- B curve tripping characteristic suitable for low inrush current circuits.
- 1P+N configuration for live and neutral switching in one device.
- Provides protection against overload and short-circuit faults.
- Designed for 230/240 V AC electrical distribution systems.
- DIN rail mounting for fast installation in distribution boards and control panels.
Key Features
- Chint NBH8-40 miniature circuit breaker series.
- 25 A rated current.
- B curve trip characteristic.
- 1P+N pole configuration.
- 230/240 V AC rated operational voltage.
- Protection against overload and short-circuit currents.
- Suitable for isolation and circuit switching.
- 35 mm DIN rail mounting for panel installation.
Reliable Circuit Protection for Electrical Distribution
Miniature circuit breakers such as the Chint NBH8-40-B25 automatically disconnect a circuit when overload or short-circuit conditions occur. This helps protect wiring, connected equipment and electrical installations from damage caused by excessive current.
The B curve trip profile is typically used where starting currents are relatively low, making this device suitable for lighting circuits, socket circuits, small distribution loads and similar applications. Its compact 1P+N construction makes it ideal for modern distribution boards where space-saving protection is required.
Typical Applications
- Residential consumer units and distribution boards.
- Commercial electrical distribution panels.
- Lighting circuits and small power circuits.
- Final circuit protection in low voltage installations.
- Control panels and auxiliary distribution circuits.
- General electrical isolation and switching applications.
