Relay modules

By means of a relay, a circuit with much more power can be switched with a relatively small current.

Relay modules RTC Modules Digital storage modules Signal generator modules

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5V Relay module 16 channels This 16 channel relay module can be used to safely switch on and off 16 separate channels. This gives you control over other circuits or devices, without the risk of the arduino being damaged or dangerous situations arising.
In stock
€ 8,85 Incl. VAT
5V relay with adjustable delay (0S - 10S) 5V relay module with a NE555 (timer) IC. By adding this timer it is possible to set a delay from 0 to 10 seconds before this relay turns 'on'. The module is initially off and turns on after X seconds.
In stock
€ 4,15 Incl. VAT
Solid state relay module 240VAC 8 channel Solid state relay module with a maximum output voltage of 240V AC and a current of max 2A. This module contains 8 channels that can be controlled independently of each other with a voltage of 5V. The solid state relays (SSR) are smaller, quieter, stronger and safer than the standard relay modules ..
In stock
€ 14,50 Incl. VAT
5V Relay 10A 5V Relay with a switching capacity of 10A. By means of a relay, a circuit with much more power (10A, 250VAC) can be switched with a relatively small current.
In stock
€ 1,95 Incl. VAT
12v 10A relay with 433MHz receiver A small and powerful 12V relay module with 433MHz receiver. The relay can switch up to 10A in 4 modes (toggle, momentary, latching, timer [5, 10 and 15s]) and is securely packaged with a 433MHz receiver in a plastic housing.Please note, no remote control is included.
In stock
€ 8,05 Incl. VAT
12v 2 channel 10A relay with 433MHz receiver A small and powerful 2 channel 12V relay module with 433MHz receiver. Both relays can switch up to 10A in 3 modes (toggle, momentary and latching) and are securely packaged with a 433MHz receiver in a plastic housing.Please note, no remote control is included.
In stock
€ 9,85 Incl. VAT
12V relay with adjustable delay (0S - 10S) Enhance your electronic projects with our 12V relay module featuring an NE555 timer IC. Easily set a delay of 0 to 10 seconds before the relay switches 'on', perfect for a wide range of applications.
In stock
€ 3,00 Incl. VAT
Multifunction relay switch Whadda #WST8015 This kit is very interesting if you want to learn more about electronics. This multifunctional relay module can operate in 14 different modes: timers, switching, flashing, interval, random switching, delays from 2s to 12 days, push button operation, and so on.
In stock
€ 19,30 Incl. VAT
24V Relay 10A 24V Relay with a switching capacity of 10A. By means of a relay, a circuit with much more power (10A, 250VAC) can be switched with a relatively small current.
In stock
€ 2,20 Incl. VAT
Gravity: Digital 5A Relay Module DFRobot #DFR0017 The DFRobot Relay Module is a standard relay used with a controller board to interface external electrical circuits or modules. Some of the most common applications with Arduino are: Home lighting, electrical appliances of high power and other equipments.
In stock
€ 4,25 Incl. VAT
SparkFun Qwiic Single Relay Sparkfun #COM-15093 Control high-power devices with the SparkFun Qwiic Single Relay. Designed for low-power microcontrollers like Arduino, it can handle up to 5.5A at 240VAC. Easy to connect with no soldering required.
In stock
€ 12,75 Incl. VAT
Bistable relay module with push button - 1 channel - 12V Whadda #WPM331 This WPM331 push button bistable relay module can turn an external circuit or device on or off via an external switch.
In stock
€ 8,75 Incl. VAT
LilyGO T-Relay-8 ESP32 - 5V 8 Channel Relay Module LilyGO #H561 The LilyGO T-Relay-8 ESP32 (H561), is a versatile 5V 8 Channel Relay Module designed for seamless automation and control. With 8 mechanical relays at your fingertips, coupled with the power of Wi-Fi and Bluetooth connectivity, this module empowers your projects. It features electronic switching for precise control and compatibility with I2C, SPI, and UART interfaces, offering flexibility in integration.
In stock
€ 22,45 Incl. VAT
Relay module 5V 5V Relay module with optocoupler for safe control of high voltage devices. Features compact size, easy-to-use interface, handles up to 10A, plug-and-play design, and indicator light for reliable operation.
Out of stock
€ 2,00 Incl. VAT
5V Relay module 2 channels A small and powerful relay module for safely switching larger voltages. This module works on 5V and can be completely isolated by means of a jumper.Properties2 channelsIsolated by means of an optocouplerBuilt-in LED indicatorOperates on 5VMaximum load: AC 250V / 10A, DC 30V / 10A
Out of stock
€ 2,05 Incl. VAT
IRF520 mosfet module This mosfet module works as a digital switch / relay. With the IRF520 as a mosfet, this module can switch up to 5A. This mosfet can be controlled by means of a digital signal and even pwm.
Out of stock
€ 1,95 Incl. VAT
5V Relay module 8 channels This 8 channel relay module can be used to safely switch on and off 8 separate channels. This gives you control over other circuits or devices, without the risk of the arduino being damaged or dangerous situations arising.
Out of stock
€ 5,90 Incl. VAT
12v module relay A small and powerful relay module for safely switching larger voltages. This module works on 12V and can be set high active or low active by means of a jumper.
Out of stock
€ 1,75 Incl. VAT
Temperature controlled relay 12V - W1209 This temperature-controlled relay that, as the name suggests, contains a relay that is activated at a preset temperature. The supplied probe, which contains an accurate thermistor, measures the current temperature with an interval of 2Hz.
Out of stock
€ 4,15 Incl. VAT
Bistabiel relay module 12V A small and powerful bistable relay module to safely switch larger voltages. This module has a bistable effect, which means that with a pulse the relay is opened and closed again with the next pulse. This module works on 12V and can switch up to 10A.
Out of stock
€ 2,05 Incl. VAT
Solid state relais 3-32V / 40A / 24-380VAC Solid state relays are more economical than mechanical relays because they require a much lower current to be switched. Furthermore, an SSR contains no moving parts, so they switch faster and last much longer because there is less wear.
Out of stock
€ 3,20 Incl. VAT
12V Mini Relay 3A 12V Relay with a switching capacity of 3A. By means of a relay, a circuit with much more power (3A, 250VAC) can be switched with a relatively small current.
Out of stock
€ 2,05 Incl. VAT
Pololu Basic 2-Channel SPDT Relay Carrier with 5VDC Relays (Assembled) Pololu #2485 Pololu Basic 2-Channel SPDT Relay Carrier with 5VDC Relays (Assembled).The Pololu basic 2-channel relay carrier modules allow simple, independent control of two single-pole, double-throw (SPDT) switches from low-voltage, low-current control signals.
Delivered in 5 to 14 days
€ 15,20 Incl. VAT
Pololu Basic 2-Channel SPDT Relay Carrier with 12VDC Relays (Assembled) Pololu #2487 The Pololu basic 2-channel relay carrier modules allow simple, independent control of two single-pole, double-throw (SPDT) switches from low-voltage, low-current control signals.
Delivered in 5 to 14 days
€ 13,85 Incl. VAT
Pololu Basic SPDT Relay Carrier with 12VDC Relay (Assembled) Pololu #2482 The Pololu basic relay carrier modules allow simple control of a single-pole, double-throw (SPDT) switch from low-voltage, low-current control signals.
Delivered in 5 to 14 days
€ 7,60 Incl. VAT
Pololu Basic SPDT Relay Carrier with 5VDC Relay (Assembled) Pololu #2480 Pololu Basic SPDT Relay Carrier with 5VDC Relay (Assembled).The Pololu basic relay carrier modules allow simple control of a single-pole, double-throw (SPDT) switch from low-voltage, low-current control signals.
Delivered in 5 to 14 days
€ 7,60 Incl. VAT
Pololu RC Switch with Relay (Assembled) Pololu #2804 This RC relay enables easy control of large, electrically isolated loads in radio control (RC) systems. The activation threshold and direction are configurable, and a safe-start feature reduces the likelihood of unexpected activation.
Delivered in 5 to 14 days
€ 14,65 Incl. VAT
Solid state relais 3-32V / 10A / 24-380VAC Solid state relays are more economical than mechanical relays because they require a much lower current to be switched.
Out of stock
€ 6,45 Incl. VAT
Solid state relais 3-32V / 10A / 5-60VDC This relay can switch a voltage from 5V to 60VDC with a current of up to 10A. The relay accepts a control voltage from 3V to 32V DC. The relay is equipped with 4 screw terminals.
Out of stock
€ 4,65 Incl. VAT
12V 10A relay 12V Relay with a switching capacity of 10A. By means of a relay, a circuit with much more power (10A, 250VAC) can be switched with a relatively small current.
Out of stock
€ 2,20 Incl. VAT
SparkFun Qwiic Quad Relay Sparkfun #COM-16566 "Maximize your Arduino's power with the SparkFun Qwiic Quad Relay. Control high-powered devices with its 4 relays, each rated for up to 5A per channel at 250VAC or 30VDC. No soldering required, thanks to the Qwiic system. Safety features included."
Delivered in 5 to 10 days
€ 33,90 Incl. VAT
SparkFun Qwiic Dual Solid State Relay Sparkfun #COM-16810 Control two AC loads efficiently with the SparkFun Qwiic Dual Solid State Relay. Features 25A/250VAC solid state relays, ATTiny84 power, and safety features. Ideal for experienced users.
Delivered in 5 to 10 days
€ 85,00 Incl. VAT
Whadda Interval timer module - WMT136 Whadda #WMT136 The WMT136 Interval Timer is your solution for reliable and fast timing tasks. Easy to connect to a 12V external power supply and flexible for various applications.
Out of stock
€ 14,85 Incl. VAT
Timer relay module - 12V This timer relay module has multiple functions, with a total of 24 working modes. The maximum switching current is 20A and the output is isolated from the circuit by a relay, which can control low‑voltage electrical appliances, direct current, etc.
Out of stock
€ 8,10 Incl. VAT
Dmx-controlled relay switch Whadda #WSL8072 This Kit allows you to control a relay by means of the well-known DMX512 protocol. This protocol was developed by USITT in 1986 to control dimmers, scanners, moving-head spots and other lighting devices with a simple wiring.In some cases, a simple ON/OFF selection is desired.
Delivered in 3 to 7 days
€ 20,00 Incl. VAT
Din rail wlan relay card Whadda #VM208 This new DIN rail WLAN relay card combines the strength of four robust relays that you can control via smartphone. In other words: this device enables you to remotely control any appliance in your electrical cabinet from anywhere in the world*!
Delivered in 3 to 7 days
€ 145,85 Incl. VAT
Din-rail extension relay card Whadda #VM208EX Upgrade your DIN-rail relay card (VM208) with 8 additional relays of 16 A @ 230 VAC.FeaturesI2C protocol communicationextends the with 8 additional relayspowered by thecan be controlled by an Arduino development board (VM208INT – coming soon!
Delivered in 3 to 7 days
€ 77,55 Incl. VAT
Kitronik Relay Control Breakout Board Kitronik #5101 This breakout board allows a low power logic level device running at 5V to operate a relay. The relay can switch up to 16A 250VAC or 16A 30VDC. This lets your low power microprocessor control big, power hungry devices!
Delivered in 5 to 30 days
€ 14,85 Incl. VAT
Adafruit ISO1540 Bidirectional I2C Isolator Adafruit #4903 Sometimes you'll find yourself with an I2C bus controller on one side, and an I2C bus device on the other and you gotta keep em (electrically) separated.
Delivered in 10 to 30 days
€ 18,95 Incl. VAT
HT0740 40V / 10A Switch Breakout - PIM455 Pimoroni #PIM455 Oh boy, this is a Big Switch. Program it to switch loads up to 40V / 10A connected to the HT0740 breakout's sturdy screw terminals, and use up to four breakouts at the same time using the...
Delivered in 5 to 30 days
€ 17,00 Incl. VAT
WPM406 5V Relay module Whadda #WPM406 This relay acts as an electronic switch to control the current of a circuit. This module can be controlled via 5V supplied by the Arduino for example.
Delivered in 3 to 7 days
€ 5,80 Incl. VAT
4 Channel relay module Whadda #WPM400 With this 4-channel relay module you can control various circuits or devices with high current. The module can be controlled directly via a microcontroller, such as the Arduino.
Delivered in 3 to 7 days
€ 10,50 Incl. VAT
Whadda Relay with delay - 1s / 60h - WST188 - kit Whadda #WST188 The WST188 Pulse/Pause Timer lets you adjust both the pulse and pause times between 1 second and 60 hours. Easily connected to a 12-24 VDC power supply and equipped with a powerful 16 A relay, this timer is the ultimate choice for a wide range of applications.
Delivered in 3 to 7 days
€ 16,60 Incl. VAT
Whadda Twilight switch - WSL125 - construction kit Whadda #WSL125 The WSL125 is an educational soldering kit with a twilight switch that automatically controls your lighting based on the lighting conditions. Easy to assemble, adjustable sensitivity and works on 12VDC. Ideal for gardens, driveways and more.
Delivered in 3 to 7 days
€ 8,95 Incl. VAT
SparkFun Beefcake Relay Control Kit (Ver. 2.0) Sparkfun #KIT-13815 The SparkFun Beefcake Relay Control Kit (Ver. 2.0) is a powerful tool for 5V systems, capable of handling 10A on NC contacts and 20A on NO contacts at 220VAC. Ideal for controlling high-power loads.
Delivered in 5 to 10 days
€ 14,25 Incl. VAT
Solid State Relay - 40A (3-32V DC Input) Sparkfun #COM-13015 The Sparkfun Solid State Relay - 40A offers superior control of high-current AC loads. With a 3-32V DC input, zero cross trigger control, and 7.5mA/12V trigger current, it's ideal for lighting...
Delivered in 5 to 10 days
€ 11,15 Incl. VAT
Arduino Pro Opta Ext D1608E Arduino #7630049204096 Transform your Arduino Opta into a powerhouse of real-time control and monitoring capabilities with the addition of the Arduino Pro Opta Ext D1608E module.
Delivered in 14 to 30 days
€ 153,30 Incl. VAT

The 3 most popular Relay modules

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By means of a relay, a circuit with much more power can be switched with a relatively small current.

Customer reviews about Relay modules

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AnonymousBistabiel relay module 12V Fast service great stuff just missed a connection diagram
Willem12v module relay Works perfect, the scheme/manual is missing
Anoniem5V Relay 10A Top product + received quickly = excellent webshop
FloRelay module 5V Works perfectly. I use it to trigger a plasma cutter from a Creality Falcon 10w engraver. Requires adding a 5V power supply ( USB in my case) to avoid IO collapse
Don A.24V Relay 10A Great relay + received quickly
BenTemperature controlled relay 12V - W1209 I first had a defective 12V adapter, which caused the relay, LED and display to flash "0F0". With a good 12V adapter the relay works fine.
FloIRF520 mosfet module Not tested. Fast delivery and packaging OK.
Flo24V Relay 10A Not tested. Packaging and delivery OK.