Best Switches Relays Deals Online in the UK (25 Deals Found)

Last Updated - 19/02/2026 Sort By:

Best Choice
Gebildet

New
Gebildet 2pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-in Diode- 12V DC 4-Pin SPST Automotive Rela
✪ Waterproof automotive relay with 12V DC (max. 14V). Note: 12V and 14V are coil voltages, not the voltage that triggers

£11.99
Gebildet

Used
Gebildet 2pcs 40/30 Amp Waterproof Relay Switch 12AWG Harness Set with Built-in Diode- 12V DC 4-Pin SPST Automotive Rela
✪ Waterproof automotive relay with 12V DC (max. 14V). Note: 12V and 14V are coil voltages, not the voltage that triggers

£10.19
New
Wireless Dual Remote Car Battery Disconnect Relay Master Kill Cut-off Switch 12V
Battery disconnect switch rated current: 240A. Disconnect Switches can solve the power consumption caused by such proble

£15.90
Gebildet

New
Gebildet 3pcs 12V Fuse Relay Switch 12 AWG Harness Set with Built-in Diode- 30A ATO/ATC Blade Fuse, 4-Pin SPST Automotiv
Upgraded Version - Automotive relays built in fuse socket with included 30A blade fuse, no need of a separate fuse holde

£11.49
New
Wireless Dual Remote 12V Car Battery Disconnect Relay Master Kill Cut-off Switch
Battery disconnect switch rated current: 240A. Disconnect Switches can solve the power consumption caused by such proble

£16.95
Hailege

New
Hailege 2pcs 5V One Channel Relay Module Relay Switch With OPTO Isolation High Low Level Trigger
The module uses genuine quality relay, normally open interfaces , Maximum load: AC 250V/10A, DC 30V/10A.

£6.49
Best Value
SwitchBot

New
SwitchBot Smart Relay Switch 1, Smart Relay Module with Built-in Hub, Wi-Fi&Bluetooth Switch Works with Alexa/Apple Home
Smart Relay Switch with Bluetooth Repeater, Matter-Compatible: This device support Apple Home(*Connection to the Matter

£9.39 £12.99
New
2-Pack 12V 30A Fuse Relay Switch Kit - Reliable Automotive Electrical Solution
High Switching Capability: 30A, ideal for various automotive applications. 2 x 30A Blade Fuses. Each relay is painstakin

£18.95
GLARKS

New
Glarks 10 Pack 12V 30/40 Amp 5-Pin SPDT Electrical Relays Switch for Automotive Truck Boat Marine
★ Package: Including 10 pack 5-Pin SPDT(Single Pole Double Throw) Electrical Relays Switch packed in a plastic box.

£12.99
New
Door Mirror Window Switch 735532905 For Fiat Ducato Peugeot Boxer Citroen Relay
Product description: 100% Brand New & High Quality QUANTITY: 1 Color: Black Part Number：735532905 ( Compatible table onl

£14.87 £15.99
AEDIKO

New
AEDIKO 2pcs DC 24V Relay Module 2 Channel Relay Switch with Optocoupler Isolation High/Low Level Trigger
2 Channel Relay Module Voltage : 24V; Normally Open Interfaces Maximum Load : AC 250V/10A, DC 30V/10A

£5.99
SHUNYABEI

New
2Pcs JD1912 Automotive Relay Switch & Starter 12V 40A SPST 4-Pin for Heavy Duty Cars, Trucks, Motorcycles, Boats (Black)
Package Includes :You will get 2Pcs JD1912 4 pin 12V/40A SPST Automotive Relay

£4.76 £4.99
New
Wireless Dual Remote Car Battery Disconnect Relay Master Kill Cut-off Switch 12V
Battery disconnect switch rated current: 240A. Disconnect Switches can solve the power consumption caused by such proble

£15.89
Weasch

New
Weasch 2 Pack Fuse Relay Switch Kit, 12V 30A, 4 Pin SPST, 30A Switch Harness Set, Automotive Electrical Relays with 14 A
Rated voltage 12VDC (14V Max), 30A High Switching Capability

£9.99
New
Wireless Remote Car Battery Disconnect Relay Master Kill Cut-off Switch Isolator
1x Remote battery disconnect switch. Battery disconnect switch rated current: 240A. Trailing Arm Bush Removal Install To

£21.99
talNite

New
12V Fuse Relay Switch Harness Set with 30A Blade Fuse – 4-Pin SPST Automotive Relays with Built-in Fuse Holder, Heavy Du
UPGRADED SPACE-SAVING DESIGN: Each automotive relay in this relay holder set comes with a built-in fuse socket and 30A A

£7.99
New
4-Pin DC 12V 120A Auto Relay Automotive Battery Relay Switch Starter SPST ON/Off
Heavy duty make or break (on/off) relay. Ideal for universal 12V applications. This warranty does not cover any expenses

£4.32
New
5pcs Heavy Duty 5pin 12v 40a Spdt Car Relay Automotive Switch Power With Socket
5PCS DC12V JD1914 Car SPDT Auto Relays 5 Pin 5 Socket Wires Harness Socket 40A. Relay load: 40A/12VDC. Relay technical s

£11.88
New
5V 12V 24V DC Relay Module 30A High Current Contactor Switch Trigger Board NO/NC
5v, 12v and 24v DC model is available. Output: 30A single channel relay. High / low level trigger mode selection, as sho

£6.95
New
Wireless Remote Car Battery Disconnect Relay Master Kill Cut-off Switch Isolator
Battery disconnect switch rated current: 240A. Disconnect Switches can solve the power consumption caused by such proble

£19.99
New
5V 12V 24V Single Self Locking Latching Bistable Interlock Relay Module Switch
This is a self locking, Low level input relay. when the low level (negative) signal is received the relay will trigger a

£5.95
New
⭐ 12V DC Delay adjustable timer relay, delay Turn off Switch Module ⭐
Protection against power reversal protection diode, better protection module. 12v DC delay turn ON or delay OFF module.

£4.60
New
12V Infinite Cycle Delay Time Timer Relay Turn ON OFF Switch Loop Module 0-24 Hr
After power-on, no action will be taken. After triggering, the relay will be connected and disconnected when it reaches

£5.75
New
Hazard Flasher Relay Red Warning Switch Wiring Kit Trike, Kit car, Quad
This kit allows you to have independent switch and flasher relay solely dedicated to Hazard, your existing indicator fla

£25.99
New
Wireless Remote Car Battery Disconnect Relay Master Kill Cut-off Switch Isolator
This car battery disconnect switch can master kill your vehicle system power, extend and protect the battery and engine

£21.99

25 Switches Relays deals are available from: Amazon, eBay stores, starting from £4.32.
The biggest discount we found is 28% on SwitchBot Smart Relay Switch 1, Smart Relay Module with Built-in Hub, Wi-Fi&Bluetooth Switch Works with Alexa/Apple Home/Google, 2.4GHz, Home Automation, 16A at Amazon.
The lowest price we found is £4.32 while the highest is £25.99.
Prices for the best Switches Relays deals average at £12.13.
Last updated on February 19, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Switches Relays.