20A 1 Gang DP Switch with Neon - Anthracite Part M Compliant

The Knightsbridge 20A 1-gang double pole switch features a red neon indicator above a white rocker on an anthracite thermoset resin faceplate with curved edges. The switch is Part M compliant, meeting Building Regulations requirements for accessible design through 30% Light Reflectance Value (LRV) contrast between the white rocker and anthracite plate, and between the plate and typical wall colours.

Designed for fixed appliances drawing up to 20A at 230V — water heaters, electric showers, immersion heaters — the double pole switching isolates both live and neutral lines when turned off. The red neon indicator above the rocker glows when the switch is in the 'on' position, providing clear visual confirmation of operational status from across a room. The 86mm square faceplate fits standard UK single-gang back boxes with 25mm minimum depth.

The thermoset resin construction carries tested anti-microbial properties to ISO 22196:2011, making the switch suitable for healthcare, care home, education and hospitality installations where surface hygiene matters. The anthracite finish provides a dark grey tone that contrasts against white or light-coloured walls and pairs with contemporary and industrial interiors. The curved edge design softens the profile against the wall and makes the plate easier to clean around than sharp-edged alternatives.

Product Specification Sheet

Product Manual

What does Part M compliant mean?

Part M of the Building Regulations sets accessibility standards for new builds and certain refurbishments. This switch meets those requirements through high-contrast design: the white rocker contrasts by at least 30% LRV against the anthracite plate, and the anthracite plate contrasts against typical wall colours, making the switch easier to locate and operate for people with visual impairments.

What appliances is a 20A DP switch used for?

20A double pole switches are typically used for fixed appliances that draw between 13A and 20A: electric showers, immersion heaters, water heaters, and some heating systems. The double pole switching isolates both live and neutral for safer isolation when servicing the appliance.

What does the neon indicator show?

The red neon indicator above the rocker glows when the switch is in the 'on' position. It provides visual confirmation that the circuit is live, which is particularly useful for appliances like immersion heaters where there's no other immediate indication that the device is operating.

What are the anti-microbial properties?

The thermoset resin material has been tested to ISO 22196:2011 and shown to inhibit bacterial growth on the surface. This makes the switch suitable for healthcare, care home, education and hospitality settings where surface hygiene is a priority, though regular cleaning is still required.