Crabtree Platinum 1-Gang 1-Way Dimmer Switch Polished… (35917)

£ 24.95INC VAT

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Crabtree Platinum 1-Gang 1-Way Dimmer Switch Polished Chrome (35917)

Stylish, low profile design with screwless metal front plate and concealed fixing screws. Interior fixes in place first, allowing neater decoration around product before fitting clip-on front plate.

  • Leading Edge
  • Flat Profile
  • Screwless Faceplate
  • Requires 35mm Back Box
  • Large Capacity Easy to Wire Terminals
  • Suitable for Mains Voltage Lighting
  • Thermal Overload Protection

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Rated 5 out of 5 by from still stocked product briliant This product still stocked , so replaces one that has failed at home and so matches the rest of the house phew
Date published: 2021-01-22
Rated 1 out of 5 by from doesn't fit recommended box Said to fit 16mm back box. Yet is 25 mm deep;! !! Whose going to re plaster decorate for that mis info mistake. Screw fix?
Date published: 2016-09-19
Rated 1 out of 5 by from Won't work with halogen bulbs I bought 2 Crabtree Touch Control Dimmer Switches to replace bog standard light switches. When I unscrewed a switch from the wall, I saw immediately that the lugs on the metal box in the wall were going to prevent the bulky electronics at the back of the touch switch from entering the box. I replaced the metal boxes in 2 rooms with plastic boxes bought from Screwfix and what should have been a ten minute job took over an hour (not counting the return journey to get the plastic boxes). Even with the plastic box, the wires had to be squeezed in and the switch did not fit snugly against the wall. I switched on the lights - which was a chandelier of halogen bulbs (10 x 10W) and they flicked and did not stay bright. I tried the other touch dimmer switch and the result was the same - that they are no use with halogen bulbs. I bought touch dimmer light switches from a high street store (more expensive) and the electronics at the rear was less bulky and would have fitted comfortably fitted into the metal wall box and I had no problems with the halogen bulbs. It is a pity that I had disposed of the receipt so I will not get my money back! My conclusion Too bulky to fit into a metal wall box and won't work with halogen lights.
Date published: 2013-12-31
Rated 5 out of 5 by from 1 way only This switch is for one way switching only. (2 way only possible via Slave unit not stocked here) 16mm back box info incorrect, unit requires 40mm back box as found out once I opened the package! Unit is nice looking and works fine on 1 way circuit, Screwfix info has let it down.
Date published: 2010-09-27
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What is the minimum back box required?

Says in description fits 16mm back box, but then goes on to say minimum required 35mm!? The back box depth I have is 20mm.
Asked by: DIYAntsF
Hi, This Crabtree Platinum low profile dimmer requires a 35mm backbox to allow sufficient clearance to avoid pinching or potential damage to the wiring. We'll contact Screwfix to amend the details on their website. Thanks for your interest in Crabtree products.
Answered by: Crabtree Expert
Date published: 2018-11-11

Is this dimmer suitable to drive dimmable LED bulbs?

I will have 2 fittings each featuring a vintage-style large globe LED 'filament' bulb. Both fittings work off just one switch.
Asked by: JonP123
The initial answer is no. There are too many LED lighting manufacturers in the current market place to test the compatibility of our standard lighting dimmer switches. We understand that with some installations these were installed with LED circuits and there were problems (buzzing noises and pulsing). There would be a risk of this happening with some LED circuits which we could not substantiate. In short- you will need to purchase specific LED Dimmers. However thank you for your interest in our Crabtree brand.
Answered by: Crabtree Expert
Date published: 2017-05-27

Is this a trailing edge or leading edge dimmer?

i.e. will this work with dimmable GU10 bulbs.
Asked by: JNB1
Hi, This is a leading edge dimmer and should be compatible with the GU10 lamps.
Answered by: Crabtree Expert
Date published: 2019-06-03
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Brand Crabtree
Dimmer Switch Operation Touch
Fixings Supplied Fixings Supplied
Insert Colour Without Inserts
Manufacturer Guarantee 1 Year Guarantee
Max. Dimmable Load (Fluorescent) Not Compatible
Max. Dimmable Load (Halogen) 200 W
Max. Dimmable Load (Incandescent) 400 W
Max. Dimmable Load LED) Not Compatible
Min. Back Box Depth Required 35 mm
Min. Dimmable Load (Fluorescent) Not Compatible
Min. Dimmable Load (Halogen) 60 W
Min. Dimmable Load (Incandescent) 60 W
Min. Dimmable Load (LED) Not Compatible
Model Name Platinum
Model No SF7400/TD1HPC
No. of Earth Terminals 0
No. of Ways 1 Way
Number of Gangs 1 Gang
On/Off Switch Operation Touch
Overload Protection Thermal Overload Protection
Pack Size 1
Parent Colour Chrome
Pieces in Pack/Case 1
Power Voltage Supply 250 V
Product Type Dimmer Switch
Screwed/Screwless Screwless
Smart Compatibility Not Smart
Suitable for Dimming LEDs Non LED
Switches & Sockets Finish Polished
Switches & Sockets Product Type Dimmer Switch
Switches & Sockets Profile Type Flat
Switch Operation Dimmer
Switch Product Type Light
Terminal Capacity Terminals accept up to 4 x 1mm², 3 x 1.5mm² or 1 x 2.5mm² cable
Waveform Leading Edge


Instruction Manual