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Chint NBH8-40-B06 MCB – 1P+N – B Curve – 6A – 4.5kA
Chint NBH8-40-B06 1P+N B curve 6 A miniature circuit breaker designed for overload and short-circuit protection in low-voltage electrical installations.
£7.50
Why Choose the Chint NBH8-40-B06 Miniature Circuit Breaker?
The Chint NBH8-40-B06 is a compact and dependable 1P+N miniature circuit breaker designed to provide reliable overload and short-circuit protection in low-voltage electrical installations. As part of the Chint NBH8 series, it is suitable for residential, commercial and light industrial applications where safe circuit protection and compact installation are required.
Its slim modular design makes it ideal for consumer units, distribution boards and electrical control panels where space is limited. The integrated contact position indicator provides clear visual status feedback, while the DIN rail mounting format supports fast and straightforward installation.
With a rated current of 6 A, a B curve tripping characteristic and a 1P+N configuration, the NBH8-40-B06 is well suited for lighting circuits, auxiliary supplies, control wiring and other low-current applications requiring dependable protection.
Key Advantages
- Compact 6 A miniature circuit breaker for low-current protection.
- 1P+N configuration for protected live and switched neutral arrangements.
- B curve tripping characteristic for resistive loads and low inrush current circuits.
- Provides overload and short-circuit protection.
- Suitable for switching and electrical isolation.
- Quick installation using standard 35 mm DIN rail mounting.
Key Features
- Chint NBH8 miniature circuit breaker series.
- 6 A rated current.
- B curve tripping characteristic.
- 1P+N pole configuration.
- Designed for overload and short-circuit protection.
- Contact position indicator for clear operating status.
- Compact modular housing for distribution boards.
- 35 mm DIN rail mounting with fast clip device.
Reliable Protection for Lighting and Auxiliary Circuits
The Chint NBH8-40-B06 automatically disconnects the circuit when overload or short-circuit conditions occur, helping to protect wiring, equipment and connected devices from electrical damage. Its B curve characteristic is designed to trip between 3 and 5 times the rated current, making it suitable for resistive loads and circuits with low inrush current.
The 1P+N configuration protects the live conductor while switching the neutral conductor, supporting safe isolation in compact single-phase distribution systems.
Typical Applications
- Consumer units and distribution boards.
- Residential electrical installations.
- Commercial lighting circuits.
- Control and auxiliary circuits.
- Electrical control panels.
- Low-current single-phase distribution systems.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Current | 6 A | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 4.5 kA | |
| Manufacturer | Chint | |
| Series | NBH8 | |
| Model | NBH8-40-B06 | |
| Product type | Miniature circuit breaker | |
| Rated current | 6 A | |
| Number of poles | 1P+N | |
| Tripping curve | B curve | |
| Rated voltage | 230 / 240 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated insulation voltage | 500 V | |
| Rated impulse withstand voltage | 4 kV | |
| Breaking capacity | 4.5 kA or 6 kA | |
| Energy limiting class | Class 3 | |
| Protection rating | IP20 | |
| Standard | IEC / EN 60898-1 | |
| Mounting type | 35 mm DIN rail | |
| Terminal connection | Cable or pin-type busbar | |
| Terminal capacity | 16 mm² cable / 10 mm² busbar |
Frequently Asked Questions
What is the Chint NBH8-40-B06 used for?
The NBH8-40-B06 is used to protect low-current electrical circuits against overloads and short circuits while providing switching and isolation.
What current rating does this MCB have?
This model has a rated current of 6 A.
What does B curve mean on this circuit breaker?
A B curve MCB typically trips between 3 and 5 times its rated current, making it suitable for resistive loads and circuits with low inrush current.
How many poles does the NBH8-40-B06 have?
The NBH8-40-B06 has a 1P+N configuration, with one protected pole and a switched neutral.
Where is this circuit breaker typically installed?
It is typically installed on a standard 35 mm DIN rail inside consumer units, distribution boards or electrical control panels.
Trusted by Electrical Professionals Worldwide
Chint NBH8 miniature circuit breakers are trusted by electricians, panel builders and maintenance engineers for compact circuit protection, reliable switching and dependable performance in low-voltage electrical installations.
