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10A Fan Isolator Key Switch Module - Matt Black

£699
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Description

The Knightsbridge 10A fan isolator key switch module is a triple-pole isolator designed for bathroom and kitchen extractor fan circuits where safe disconnection of the fan is required during maintenance. The module clips into Knightsbridge grid mounting frames (sold separately) and uses a removable key to prevent unauthorised switching of the fan circuit once isolated.

Grid modules suit installations where multiple switch functions need to be grouped together in a single plate — combining lighting controls, fan isolators and socket outlets within the same frame. The triple-pole design isolates live, neutral and earth lines when the switch is in the OFF position, providing full circuit disconnection rather than just breaking the live feed. The module carries a 10A rating at 230V, suitable for standard domestic extractor fans.

The matt black ABS and steel construction gives the module a low-sheen finish that pairs with contemporary, industrial and monochrome interiors. The module measures 25mm wide (single grid width) and requires a minimum 25mm back box depth behind the mounting frame. The 1500A conditional short-circuit current rating provides protection against electrical faults during operation. The removable key prevents accidental reconnection of the fan circuit while maintenance work is being carried out.

Specification
Height 56.3 mm
Width 25 mm
Projection 2.5 mm
Recessed Depth 17.5 mm
Min. Mounting Box Depth 25mm
Construction ABS
Construction 2 & steel
Finish Matt Black
IP Rating IP20
Primary Voltage 230V 50Hz
Warranty 25
Downloads

Product Specification Sheet

Frequently Asked

What is a fan isolator and why is it required?

A fan isolator provides a means of safely disconnecting an extractor fan from the mains supply during maintenance or replacement. Building regulations often require an accessible isolator for bathroom and kitchen fans so that the fan can be worked on without turning off power at the consumer unit.

What does triple-pole mean?

Triple-pole switching isolates all three conductors in the circuit: live, neutral and earth. This provides full disconnection of the fan from the electrical supply, whereas single-pole switching only breaks the live connection.

Can the module be used on its own?

No. The module requires a separate Knightsbridge grid mounting frame, which is sold separately. The module clips into the frame from the front, and the frame is then fixed to a 25mm minimum back box.

What is the removable key for?

The key prevents unauthorised operation of the isolator. Once the fan circuit is switched to the OFF position for maintenance, the key can be removed and kept by the person carrying out the work, preventing accidental reconnection of the circuit while they are working on the fan.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

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    Description

    The Knightsbridge 10A fan isolator key switch module is a triple-pole isolator designed for bathroom and kitchen extractor fan circuits where safe disconnection of the fan is required during maintenance. The module clips into Knightsbridge grid mounting frames (sold separately) and uses a removable key to prevent unauthorised switching of the fan circuit once isolated.

    Grid modules suit installations where multiple switch functions need to be grouped together in a single plate — combining lighting controls, fan isolators and socket outlets within the same frame. The triple-pole design isolates live, neutral and earth lines when the switch is in the OFF position, providing full circuit disconnection rather than just breaking the live feed. The module carries a 10A rating at 230V, suitable for standard domestic extractor fans.

    The matt black ABS and steel construction gives the module a low-sheen finish that pairs with contemporary, industrial and monochrome interiors. The module measures 25mm wide (single grid width) and requires a minimum 25mm back box depth behind the mounting frame. The 1500A conditional short-circuit current rating provides protection against electrical faults during operation. The removable key prevents accidental reconnection of the fan circuit while maintenance work is being carried out.

    Specification
    Height 56.3 mm
    Width 25 mm
    Projection 2.5 mm
    Recessed Depth 17.5 mm
    Min. Mounting Box Depth 25mm
    Construction ABS
    Construction 2 & steel
    Finish Matt Black
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Warranty 25
    Downloads

    Product Specification Sheet

    Frequently Asked

    What is a fan isolator and why is it required?

    A fan isolator provides a means of safely disconnecting an extractor fan from the mains supply during maintenance or replacement. Building regulations often require an accessible isolator for bathroom and kitchen fans so that the fan can be worked on without turning off power at the consumer unit.

    What does triple-pole mean?

    Triple-pole switching isolates all three conductors in the circuit: live, neutral and earth. This provides full disconnection of the fan from the electrical supply, whereas single-pole switching only breaks the live connection.

    Can the module be used on its own?

    No. The module requires a separate Knightsbridge grid mounting frame, which is sold separately. The module clips into the frame from the front, and the frame is then fixed to a 25mm minimum back box.

    What is the removable key for?

    The key prevents unauthorised operation of the isolator. Once the fan circuit is switched to the OFF position for maintenance, the key can be removed and kept by the person carrying out the work, preventing accidental reconnection of the circuit while they are working on the fan.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.