Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
IMO BR6D3N40A 40A 3 Pole + Neutral miniature circuit breaker with D curve tripping characteristic, 6kA breaking capacity and 230/400V AC rating for industrial and commercial electrical protection.
£24.30
The IMO BR6D3N40A is a high-performance 6kA miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in commercial and industrial electrical installations. As part of the trusted IMO BR6 series, this device combines robust performance with compact DIN rail mounting for modern distribution boards and control panels.
Featuring a D curve tripping characteristic, the BR6D3N40A is ideal for circuits with high inrush currents, including motors, transformers and other inductive loads. Its durable construction, clear contact position indication and finger-safe terminals help simplify installation while maintaining high levels of electrical safety.
With a 40A current rating, 3 pole + neutral configuration and a 230/400V AC operating voltage, this circuit breaker is well suited to industrial machinery, motor control panels and three-phase power distribution applications requiring reliable circuit protection.
Miniature circuit breakers automatically disconnect electrical circuits when overload or short circuit conditions occur, helping protect wiring, equipment and connected machinery from damage while improving electrical safety.
The IMO BR6 series has been developed for industrial and commercial applications where dependable performance, straightforward installation and long service life are essential. The D curve characteristic makes this model particularly suitable for circuits supplying motors and other equipment with high inrush currents.
Tick the specs you need, then view products that match.
| Current | 40 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | IMO Precision Controls | |
| Series | BR6 | |
| Model | BR6D3N40A | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 40 A | |
| Tripping characteristic | D Curve | |
| Breaking capacity | 6 kA | |
| Rated voltage | 230/400 V AC | |
| Number of poles | 3 Pole + Neutral (3P+N) | |
| Frequency | 50 / 60 Hz | |
| Mounting type | DIN rail | |
| Protection rating | IP20 terminals | |
| Standards | IEC 60898-1 | |
| Operating temperature | -30°C to +60°C | |
| Modules | 4 | |
| HS Code | 8536201090 | |
| Country of Manufacture | China |
It protects three-phase electrical circuits against overloads and short circuits in industrial and commercial installations.
A D curve breaker is designed for circuits with high inrush currents, making it suitable for motors, transformers and other inductive equipment.
The IMO BR6D3N40A has a 40A rated current.
This miniature circuit breaker provides a 6kA short circuit breaking capacity.
It is designed for standard DIN rail mounting within distribution boards, switchboards and industrial control panels.
IMO BR6 miniature circuit breakers are widely specified by panel builders, electrical contractors and industrial engineers for dependable circuit protection across commercial and industrial installations.
We use cookies
We use essential cookies to run this site, your basket and checkout. With your permission we'd also like to use analytics and advertising cookies to understand how the site is used and to measure our adverts.