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Blue Specialty Electrical Switches & Relays

Shop the best prices on 1,073 great value blue specialty electrical switches & relays. Shopping for specialty electrical switches & relays is easy with Fruugo, with SALE discounts, offers and savings on many brands. Buy specialty electrical switches & relays online safely with Fruugo, with secure payment and fast shipping to United Kingdom.

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1 - 32 of 1,073
12V DC Delay Relay Delay Turn on / Delay Turn Off Switch Module with Timer
£3.95 Save £2.00 RRP: £5.95
25-26 12mm LED Illuminated Metal Momentary Push Button Switch Boat Car 3A/220V DC
£1.95 Save £2.00 RRP: £3.95
12V Light Control Switch Photoresistor Relay Module Detection Sensor XH-M131
£3.95 Save £2.00 RRP: £5.95
Photoresistor relay module for 12V light control switch XH-M131
£32.95 Save £10.00 RRP: £42.95
Full Automatic Water Level Controller Pump Switch Module with Ac/Dc 12V Relay Sensors Suitable for Various Brands
£8.95
12V DC Delay Relay Delay Turn on / Delay Turn Off Switch Module with Timer
£3.95 Save £4.00 RRP: £7.95
USB to RS485 Communication Module Bidirectional Half-Duplex Serial Line Converter
£3.95 Save £4.00 RRP: £7.95
-3.3 Regulator Power Supply Module 4.75V-12V to 3.3V 800mA (Pack of 5)
£3.95 Save £24.00 RRP: £27.95
Xh-M203 Full Automatic Water Level Controller Pump Switch Module 12V Relay Sensors
£4.95 Save £3.00 RRP: £7.95
12v 20a Winch In Winch Out On-off-on Rocker Switch 7 Pin Led Blue-Good
£9.95 Save £4.00 RRP: £13.95
LCUS - type 1 USB relay module USB intelligent switch control-Good
£5.95 Save £9.00 RRP: £14.95
4 Digit LED DC 8 -36V 8 Channel Multifunction Relay Control Module with Power Indicator Relay Sucti
£21.95 Save £62.05 RRP: £84.00
Heavy Duty Float Switch for Sewage, Suspended Solids and Viscous Liquids (Line Length 10 Meters)
£69.00 Save £40.00 RRP: £109.00
2x Usb To Rs485 Communication Module Bidirectional Half-duplex Serial Line Converter
£21.95 Save £4.00 RRP: £25.95
District of Columbia 6~80V Voltage Monitoring Relay Time Delay Charging Discharge Controller Module
£15.95 Save £16.00 RRP: £31.95
Usb Relay Module Usb Intelligent Control Switch For Lcus-1 Type Electronic Converter Y
£9.95 Save £4.00 RRP: £13.95
Robust Sewage Solid and Viscous Liquid Float Switch with 4-meter Line Length
£74.00 Save £75.00 RRP: £149.00
12v 20a Winch In Winch Out On-off-on Rocker Switch with LED Blue
£1.95 Save £12.00 RRP: £13.95
-SR04 Ultrasonic Ranging Module Test Board Serial Output Digital Tube Display Rangefinder
£8.95 Save £4.00 RRP: £12.95
12V Light Control Switch Photoresistor Relay Module Detection Sensor XH-M131
£8.95 Save £4.00 RRP: £12.95
Suspended solids float switch with 4m cable
£39.95 Save £34.05 RRP: £74.00
2Pcs USB to RS485 Converter Isolate Module Upgrade Industrial TVS ESD Protection CH340E Standard -4
£6.95 Save £1.00 RRP: £7.95
12V DC Delay Relay Delay Turn on / Delay Turn Off Switch Module with Timer
£6.95
For 12v 20a Winch In Winch Out Onoffon Rocker Switch 7 Pin Led Blue
£30.95 Save £43.05 RRP: £74.00
12V Light Control Switch Photoresistor Relay Module Detection Sensor XH-M131
£7.95 Save £16.00 RRP: £23.95
12V 20A 3-Pin Red LED Toggle Switches with On/Off Function for Car Truck Racing Cars RVs and Marine Applications (Set of 10)
£35.95 Save £33.05 RRP: £69.00
2x Usb To Rs485 Communication Module Bidirectional Half-duplex Serial Line Converter
£13.95 Save £50.05 RRP: £64.00
DC 12V ESP8266 ESP-01 4-Channel Relay Module WiFi Module for IoT Mobile Phone APP Controller WiFi R
£9.95 Save £24.00 RRP: £33.95
Corrosion resistant float switch for sewage, 4 meters
£47.95 Save £41.05 RRP: £89.00
12V DC Delay Relay Delay Turn on / Delay Turn Off Switch Module with Timer
£9.95 Save £10.00 RRP: £19.95
12V DC Delay Relay Delay Turn on / Delay Turn Off Switch Module with
£5.95 Save £5.00 RRP: £10.95
Heavy Duty Level Sensor for Thick Liquids and Suspended Solids
£43.95 Save £50.05 RRP: £94.00