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20A 1 Gang DP Switch - Brushed Chrome Screwless

£999
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge 20A 1-gang DP switch is a double pole isolator designed for fixed appliances drawing up to 4,600W on 230V mains — typically water heaters, immersion heaters and electric showers. The double pole switching breaks both live and neutral conductors when the switch is off, providing full isolation rather than the single-pole switching used in standard lighting circuits.

Designed for residential and light commercial installation, the switch fits a standard 25mm minimum back box depth and uses a screwless cover plate that clips onto a separate metal sub-frame. This means there are no visible screws or fixings on the wall once installed, giving a cleaner finish than traditional screw-fixed plates. The brushed chrome faceplate provides a low-sheen metallic finish that pairs with both contemporary and traditional interiors.

The premium-grade steel construction and 87.5mm square faceplate match the dimensions of standard UK single-gang faceplates, allowing the switch to sit alongside other Knightsbridge accessories in the same range without misalignment. The rocker mechanism is rated for frequent switching and the built-in gasket improves the fit against the mounting box. Certified to EN 60669-1 and carrying a 25-year warranty, the switch is designed for long-term installation rather than temporary or rental use.

Specification
Height 87.5 mm
Width 87.5 mm
Projection 4.3 mm
Min. Mounting Box Depth 25mm
Construction Premium grade steel
Finish Brushed Chrome
Class I
IP Rating IP20
Primary Voltage 230V 50Hz
Earth Terminal Yes
Neon Indicator No
Warranty 25
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What appliances is a 20A switch used for?

20A switches are designed for fixed appliances that draw high current but run on a dedicated circuit — typically water heaters, immersion heaters, electric showers and commercial kitchen equipment. The 20A rating supports loads up to 4,600W on 230V mains. Standard 13A sockets are not suitable for these appliances.

What does double pole (DP) switching mean?

Double pole switching breaks both the live and neutral conductors when the switch is turned off, fully isolating the appliance from the mains supply. This provides greater safety than single-pole switching, which only breaks the live conductor, and is required for certain high-draw appliances under UK wiring regulations.

What back box depth is required?

A 25mm minimum back box depth is needed for safe installation. The screwless cover plate adds approximately 4.3mm of projection from the wall once fitted, giving a low-profile finish.

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 switch and re-clipped without re-wiring or disturbing the electrical connections.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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Installation

Fits standard UK back boxes

Designed to fit standard UK back boxes for a straightforward swap of your existing fittings.

Ordering with us

Free delivery over £99

Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

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    Description

    The Knightsbridge 20A 1-gang DP switch is a double pole isolator designed for fixed appliances drawing up to 4,600W on 230V mains — typically water heaters, immersion heaters and electric showers. The double pole switching breaks both live and neutral conductors when the switch is off, providing full isolation rather than the single-pole switching used in standard lighting circuits.

    Designed for residential and light commercial installation, the switch fits a standard 25mm minimum back box depth and uses a screwless cover plate that clips onto a separate metal sub-frame. This means there are no visible screws or fixings on the wall once installed, giving a cleaner finish than traditional screw-fixed plates. The brushed chrome faceplate provides a low-sheen metallic finish that pairs with both contemporary and traditional interiors.

    The premium-grade steel construction and 87.5mm square faceplate match the dimensions of standard UK single-gang faceplates, allowing the switch to sit alongside other Knightsbridge accessories in the same range without misalignment. The rocker mechanism is rated for frequent switching and the built-in gasket improves the fit against the mounting box. Certified to EN 60669-1 and carrying a 25-year warranty, the switch is designed for long-term installation rather than temporary or rental use.

    Specification
    Height 87.5 mm
    Width 87.5 mm
    Projection 4.3 mm
    Min. Mounting Box Depth 25mm
    Construction Premium grade steel
    Finish Brushed Chrome
    Class I
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Earth Terminal Yes
    Neon Indicator No
    Warranty 25
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What appliances is a 20A switch used for?

    20A switches are designed for fixed appliances that draw high current but run on a dedicated circuit — typically water heaters, immersion heaters, electric showers and commercial kitchen equipment. The 20A rating supports loads up to 4,600W on 230V mains. Standard 13A sockets are not suitable for these appliances.

    What does double pole (DP) switching mean?

    Double pole switching breaks both the live and neutral conductors when the switch is turned off, fully isolating the appliance from the mains supply. This provides greater safety than single-pole switching, which only breaks the live conductor, and is required for certain high-draw appliances under UK wiring regulations.

    What back box depth is required?

    A 25mm minimum back box depth is needed for safe installation. The screwless cover plate adds approximately 4.3mm of projection from the wall once fitted, giving a low-profile finish.

    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 switch and re-clipped without re-wiring or disturbing the electrical connections.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.