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2-Way 10-150W Intelligent Dimmer Module - Black Nickel

£1899
The RRP is the manufacturer's recommended retail price of the item.
120 In Stock - Ready to Ship
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Description

The Knightsbridge GDM150IBN is a 2-way intelligent dimmer module in black nickel, designed for installation in Knightsbridge grid wiring systems including Screwless, Flat Plate, Raised Edge and Metal Clad ranges. The module auto-senses and switches between leading-edge and trailing-edge dimming modes to match the connected load, supporting 10-150W incandescent and halogen lamps, 10-150W low-voltage halogen with electronic transformers, and 5-150W dimmable LED lamps.

Designed for two-way switching circuits where a single dimmer controls a lighting circuit that can also be switched from another location, the module fits a 25mm-wide grid aperture and requires a 35mm minimum back box depth. The push-on/off mechanism and rotary knob provide direct control at the dimmer location, while a separate two-way switch elsewhere in the circuit can turn the load on or off without affecting the dimmed level set at the module.

The dimmer includes overload protection, over-temperature shutdown and an inrush current limiter to handle the surge draw from multiple lamps switching on simultaneously. Knightsbridge recommends a maximum of 10-12 lamps per dimmer to maintain stable performance and avoid exceeding the inrush protection threshold. The black nickel finish provides a dark metallic accent that pairs with both contemporary and industrial grid installations.

The module is a component for grid systems and requires a separate grid faceplate, sub-frame and back box (all sold separately). It does not function as a standalone dimmer without the supporting grid hardware.

Specification
Height 56.3 mm
Width 25 mm
Projection 23 mm
Recessed Depth 22 mm
Min. Mounting Box Depth 35mm
Construction Premium grade steel
Construction 2 & ABS
Finish Black Nickel
IP Rating IP20
Primary Voltage 230V 50Hz
Warranty 2
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What's the difference between leading-edge and trailing-edge dimming?

Leading-edge dimmers work by cutting the front of the AC waveform and suit traditional incandescent and halogen lamps. Trailing-edge dimmers cut the rear of the waveform and suit electronic loads like dimmable LEDs and low-voltage transformers. This module auto-detects the load type and switches between modes automatically.

Can this be used as a standalone dimmer?

No. The GDM150IBN is a grid module component that requires a separate Knightsbridge grid faceplate, grid sub-frame and back box to function. It does not include the cover plate or mounting hardware needed for installation.

What does 2-way mean in this context?

2-way means the dimmer can be wired into a circuit with a second switch elsewhere that also controls the same lighting load. The second switch turns the lights on or off, while the dimmer module controls both on/off and dimmed level at its own location.

Why is there a 10-12 lamp limit?

Multiple lamps switching on simultaneously create a high inrush current as filaments heat or LED drivers charge. The dimmer's inrush current limiter protects the module from damage, but exceeding 10-12 lamps can trip the protection and cause unstable dimming. For larger installations, use multiple dimmer modules on separate circuits.

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.

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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 GDM150IBN is a 2-way intelligent dimmer module in black nickel, designed for installation in Knightsbridge grid wiring systems including Screwless, Flat Plate, Raised Edge and Metal Clad ranges. The module auto-senses and switches between leading-edge and trailing-edge dimming modes to match the connected load, supporting 10-150W incandescent and halogen lamps, 10-150W low-voltage halogen with electronic transformers, and 5-150W dimmable LED lamps.

    Designed for two-way switching circuits where a single dimmer controls a lighting circuit that can also be switched from another location, the module fits a 25mm-wide grid aperture and requires a 35mm minimum back box depth. The push-on/off mechanism and rotary knob provide direct control at the dimmer location, while a separate two-way switch elsewhere in the circuit can turn the load on or off without affecting the dimmed level set at the module.

    The dimmer includes overload protection, over-temperature shutdown and an inrush current limiter to handle the surge draw from multiple lamps switching on simultaneously. Knightsbridge recommends a maximum of 10-12 lamps per dimmer to maintain stable performance and avoid exceeding the inrush protection threshold. The black nickel finish provides a dark metallic accent that pairs with both contemporary and industrial grid installations.

    The module is a component for grid systems and requires a separate grid faceplate, sub-frame and back box (all sold separately). It does not function as a standalone dimmer without the supporting grid hardware.

    Specification
    Height 56.3 mm
    Width 25 mm
    Projection 23 mm
    Recessed Depth 22 mm
    Min. Mounting Box Depth 35mm
    Construction Premium grade steel
    Construction 2 & ABS
    Finish Black Nickel
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Warranty 2
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What's the difference between leading-edge and trailing-edge dimming?

    Leading-edge dimmers work by cutting the front of the AC waveform and suit traditional incandescent and halogen lamps. Trailing-edge dimmers cut the rear of the waveform and suit electronic loads like dimmable LEDs and low-voltage transformers. This module auto-detects the load type and switches between modes automatically.

    Can this be used as a standalone dimmer?

    No. The GDM150IBN is a grid module component that requires a separate Knightsbridge grid faceplate, grid sub-frame and back box to function. It does not include the cover plate or mounting hardware needed for installation.

    What does 2-way mean in this context?

    2-way means the dimmer can be wired into a circuit with a second switch elsewhere that also controls the same lighting load. The second switch turns the lights on or off, while the dimmer module controls both on/off and dimmed level at its own location.

    Why is there a 10-12 lamp limit?

    Multiple lamps switching on simultaneously create a high inrush current as filaments heat or LED drivers charge. The dimmer's inrush current limiter protects the module from damage, but exceeding 10-12 lamps can trip the protection and cause unstable dimming. For larger installations, use multiple dimmer modules on separate circuits.

    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.