5A Unswitched Round Pin Socket - Matt Black Screwless

The Knightsbridge 5A unswitched round pin socket is built for lighting circuits and specialist low-current applications, certified to BS 546. The matt black screwless faceplate measures 87.5mm square with a 4.3mm projection from the wall, sitting almost flush once fitted. A built-in gasket behind the faceplate forms a seal between the cover and the mounting box, reducing dust ingress and improving IP20 performance.

Round pin 5A sockets are typically used for dedicated lighting circuits where a separate control system or dimmer handles switching, making the unswitched socket the correct fitting. This is common in hospitality lighting installations, residential accent lighting controlled via wall-mounted dimmers or smart systems, and custom architectural lighting where the fixture itself contains the switch. The socket fits a standard 25mm minimum depth UK back box and uses a screwless cover plate that clips onto a separate metal sub-frame.

The matt black finish is applied over premium-grade steel, giving a low-sheen surface that resists fingerprints better than gloss black and pairs cleanly with contemporary, industrial and monochrome interiors. The black insert behind the faceplate hides the back of the cover plate and creates a defined edge around the round pin aperture. Knightsbridge backs this fitting with a 25-year warranty.

Product Specification Sheet

Product Manual

What's the difference between a 5A and a 13A socket?

A 5A socket is rated for lower current loads and uses a different round pin configuration (BS 546) compared to the standard UK 13A rectangular pin socket (BS 1363). 5A sockets are typically used for lighting circuits and specialist applications, not general appliances.

Why would I use an unswitched socket?

Unswitched sockets are used where switching is handled elsewhere in the circuit — typically by a wall dimmer, smart lighting controller, or a switch within the light fitting itself. This is common in dedicated lighting installations where the socket needs to remain permanently live.

What back box depth is required?

A 25mm minimum back box depth is needed. The screwless cover plate adds 4.3mm of projection from the wall once fitted.

Is the screwless plate removable for redecorating?

Yes. The cover plate clips onto a separate metal sub-frame fixed to the back box. The cover can be removed for painting around the socket and re-clipped without re-wiring.