20A 1 Gang DP Switch - Black Nickel Screwless

The Knightsbridge 20A 1-gang DP switch controls fixed appliances rated up to 20A at 230V, including water heaters, electric cookers, immersion heaters and commercial kitchen equipment. The double-pole switching isolates both live and neutral when turned off, providing a safe isolator point for maintenance without needing to access the consumer unit. The switch uses a screwless black nickel cover plate that clips onto a metal sub-frame, leaving no visible fixings on the wall once fitted.

Designed for residential, hospitality and light commercial installation, the switch fits a standard 25mm minimum back box depth and projects just 4.3mm from the wall surface once mounted. The low-profile design keeps the switch flush with the wall plane in areas where projection needs to be minimised, such as tight corridors or next to worktops. The matching black nickel rocker integrates into the faceplate finish without a visible seam between rocker and plate.

The black nickel finish provides a dark gunmetal-grey tone that pairs well with industrial, contemporary and monochrome interiors. Knightsbridge manufactures the faceplate from premium-grade steel rather than plated plastic, giving the switch a denser feel and resistance to scratching under normal use. The built-in gasket between the cover plate and sub-frame provides protection against dust ingress in dry indoor environments, rated at IP20. Certified to EN 60669-1 and carrying a 25-year warranty, the switch meets UK wiring regulations for fixed appliance control.

Product Specification Sheet

Product Manual

What appliances is a 20A DP switch used for?

20A double-pole switches control fixed appliances rated up to 4,600W at 230V. Common applications include water heaters, electric cookers, immersion heaters, commercial dishwashers and some air conditioning units. The double-pole function isolates both live and neutral when switched off, providing a safe local isolator for maintenance.

What back box depth is required?

A 25mm minimum back box depth is needed for installation. The screwless cover plate projects 4.3mm from the wall surface once the sub-frame is mounted and the cover is clipped on.

Is the screwless plate removable for redecorating?

Yes. The black nickel cover plate clips onto a separate metal sub-frame that is screwed to the back box. The cover can be unclipped without disturbing the wiring, allowing you to paint or wallpaper around the switch and then re-clip the cover.

What other finishes are available in this range?

Knightsbridge produces this 20A DP switch in a range of finishes including polished chrome, brushed chrome, polished brass, antique brass, matt black and white. Use the search function or filters to find other variants in stock at Niori.