Best Relays 2026

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Last Updated - 27.03.2026

Best Choice

01

AZDelivery

AZDelivery 3 x 16 Relay Module 12 V with Optocoupler Low-Level Trigger Compatible with Arduino Includes E-Book

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9.7

Exceptional

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Main highlights

This product contains an e-book that contains useful information about the beginning of your project, it helps with a quick setup and saves time in the configuration process. We offer a range of application examples, complete installation guides and libraries.
This microcontroller compatible board with 16 relays for max. 50 V AC / 5 A or 30 V DC / 5 A
The 16-channel relay module is equipped with transistors, diodes and optocouplers to switch higher loads safely, reliably and with little power. The module is also equipped with generously sized relays to reliably perform many switching operations.
Each channel of the module is additionally connected to an LED that indicates the switching status of the relay. Thanks to the practical holes, the module can be safely mounted in housings.
3 x AZDelivery 16 relay module 12 V with optocoupler. Suitable for switching and controlling multiple electrical loads. The relay module can be used in automation, control and electronics projects.

32,99 €
02

DieseRC

DieseRC DC 12V 24V 4CH Wireless Remote Control Switch, DC 6-30V 10A 4-Channel Wireless Relay Receiver with 2 Wireless Transmitters, for Light, Garage Door, Motor, Awning

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9.5

Excellent

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Main highlights

【Great Design】Radio frequency remote control switch. Stable and reliable performance with high reception sensitivity (>-97dBm). Transmission of high frequency signals. A strong signal can pass through walls, floors, doors, boards, etc. It can be controlled within 50 metres distance in the open area. The code of the chip is the learning code EV1527, which is the most popular technology that makes the remote control system safer.
Wide application: products can be used in households, farms, factories, offices, laboratories, supermarkets, etc. You can remotely control any device connected to the relay receiver via the remote control. Such as garage door, electric gate, roller shutter door, extension door and electric curtain, fan, lamp, lighting, ventilation device, signal transmission and so on.
Quality assurance: high-quality relay that can be used over 100,000 times. Let this product more durable and stable to use. This receiver uses a 10A relay. The receiver is suitable for DC 6V~30V voltage, so both DC12V and DC24V are OK. It is more flexible to use.
More flexibility: This receiver contains 4 relays and there are 3 connections for each relay. These 4 relays are independent so you can remotely control each of them independently. Each receiver can store about 20 transmitters. And one transmitter can control multiple receivers (the transmitter must match the receiver). For example, you can use two relays to control garage door/engine and the other two to control light.
Easy to use: Extremely easy to set up and reset. There are 3 operating modes (instantaneous/toggle/latched mode) that can be programmed. You can easily program yourself according to your wishes. The operating mode of the product is adjustable. This item has already been set up in toggle mode. Dry contact easy to use.

24,99 €
03

GTIWUNG

GTIWUNG Pack of 10 One Channel Relay Module 5 V, 1 Channel Relay Board with Optocoupler Isolation, High Level Trigger Relay Module, Low Level Trigger Expansion Board, Relay Switch Module for Arduino

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9.4

Excellent

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Main highlights

★Stable Performance: The relay module adopts patch optocoupler isolation, strong driving ability, stable performance, and 5mA trigger current.
★Easy to Use The interface design is a humanized interface design, all interfaces can be connected directly via the terminal block, very convenient.
★1 Channel Relay Module Board: The 1 channel relay module works with 5V.The module uses a real high quality relay, the maximum load of the normally open interface: AC 250V/10A, DC 30V/10A.
★ Insulation design: the relay board is insulated with a patch optocoupler, and the insulation circuit prevents the relay switching current from damaging the I/O port.
★ Box contents: 10 x Arduino kits module 5V.

10,99 €
Value for Money

04

Shelly

Shelly 1 Gen4 WLAN Smart Relay Switch, Potential-Free Contact, 1 Channel, 16 A, Light Switch, Garage Door Opener, Smart Home, Timer Switch, Alexa & Google, Matter, Zigbee, No Hub Required

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27% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Zonal and timer: Create individual timers and schedules or automate your home with smart scenes
WIFI + SERIES - 2.4 GHz WiFi for uninterrupted smart home control; Bluetooth, Zigbee and Matter for simplified setup
Perfect for controlling (garage) gates, boilers or low voltage circuits
Now with integrated Matter and Zigbee compatibility, improved computing power and advanced scripting functions for even smarter automation
Control your devices from anywhere with the Shelly Smart Control app or voice assistants such as Alexa, Apple HomeKit, Google Home and SmartThings – no matter how much you need
1-cane power supply: supports up to 16 A at 240 V AC or 10 A at 30 V DC; fits behind wall switches or in junction boxes to save space

19,50 € 26,56 €(27% Off off)
05

RUNCCI-YUN

RUNCCI-YUN Pack of 5 One Channel Relay Module 5 V, 1 Channel Relay Module with Optocoupler High or Low Level Trigger Extension Board Relay Switch for Raspberry Pi Arduino Board

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9.0

Excellent

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Main highlights

【Wide Application】- This 5V relay board works well with ARM/PIC/AVR/MCU/Raspberry/CNC machine/PS4 etc.
【User-friendly design of interfaces】- All interfaces can be wired directly via the terminals. Fault tolerant design, even if the control line is interrupted, the relay will not work.
【SMD Optocoupler Isolation & Jumper Set】- The isolation circuit prevents damage to the I/O port due to relay switching current. The module has a jumper, so you can adjust the device status with high or low value depending on the signal state. It has screw terminals for relay (NC, C, NO) and input; coil +, coil and trigger.
【Main Specifications】- Peak load of the normally open connection: AC 125-250V/10A, DC 28-30V/10A; Trigger current: 5mA; Module operating voltage: 12V; 4pcs x 3.1mm fixed bolt hole.
【5V 1-channel relay module】- This relay card provides a single relay that can be controlled via any 5V digital output of your microcontroller.

7,99 €
06

Elektrobock

Electric Bock Timer Flush-Mounted – CS3 1B

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8.7

Very Good

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Main highlights

Specialized for fan control: ideal for switching fans with adjustable delay time from 1s to 5min. After switching on the lighting and up to 90 minutes. after switching off.
Reliability in operation: German quality standards and production in the EU ensure the longevity and stable performance of the time relay.
Flexible adjustment: Perfect for precise control of ohmic 5 to 150 watts and inductive loads between 5 and 50 watts.
Easy installation: The CS3-1B fits behind any switch/socket and features cable connections for quick and easy installation.
Compact design: fits into any installation box and blends seamlessly into existing electrical installations.

15,46 €
07

Swpeet

Swpeet 10pcs 12V 30/40A 5 Pin SPDT Electric Relay Kit Perfect for Auto Setups, Car Sound Systems and Security Systems

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8.4

Good

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Pin Specification: 5 Pin SPDT (Single Pole Double Switch) Relay, 40A/30A High Switching Capacity Earth (85), VDC (30), Trigger (86), Output N/C (87a), and Output N/O (87).
GREAT VALUE - 10 x 5 Pin Relays You won't buy it anywhere else as long as the price remains the same.
Example installations: light bar, high beam shutter release, parking light and turn signal merge into a single LED, remote start interruption, inverter set for ignition, heating seat retrofit etc.
Easy to store: these are perfect for switching control circuits that run medium power devices. They are configured like some relays of my vehicles. They come in a plastic box and are easy to store. They do not have wiring harnesses, but can be connected to some vehicles or wired as needed.
Caution: the metal lugs are removable, but the relays have a slot to fit the tabs and this small extra width makes the installation very tight.

14,99 €
08

ELEGOO

ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 1280 DSP ARM PIC AVR STM32 Blue

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8.3

Good

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√ Note: Many microcontrollers may cause the IO to be pulled to high when booting, so we recommend you choose a low level trigger to avoid accidental triggering. On the other hand, a low-level trigger has the advantage that it does not work under load when resetting the system voltage, thus providing greater safety.
√ Application: MCU control, PLC control, industrial area, smart home.
LEDs to indicate the relay status, can be switched with a low level.
Can be controlled directly with a microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
5 V 8-channel relay module, each relay requires 70 mA for switching (switching capacity AC: max. 250 V / 10 A; DC: max. 30 V / 10 A DC)

9,99 €
09

Heschen

Heschen Household AC Contactor, HS1-25, 2 Pole, 1NO, 1NC, AC 220V/240V, Coil Voltage, 35mm DIN Rail Bracket, CE-TUV List(1)

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8.2

Good

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Rated power: 220 V / 230 VAC, 25 amps
Product Name: Household AC Contactor
Mounting type: 35mm DIN rail
Low power consumption, flame retardant, low noise, long service life
Contact type: 1NO 1NC, 2 pole

7,99 €
10

CAM2

2 Pieces SSR Solid State Relay Module SSR-40DA, Solid State Relay 3-32VDC Output 24-380VAC 40A Heatsink

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8.1

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The AC contactor is particularly suitable for corrosion, moisture, dust and other harsh environments as well as for frequent switching.
Solid state relay, ideal for applications with automatic process control, an indispensable component for temperature regulators and other machine control systems.
SSR application: with a switch without spark, no noise, high switching speed, corrosion protection, moisture resistance, vibration protection, long service life. High reliability, electromagnetic compatibility and other properties.
Product Name: 2 Piecs SSR Solid State Relay Module SSR-40DA, Solid State Relay 3-32VDC Output 24-380VAC 40A Heatsink
High reliability, compact size, a great component for temperature regulators and other machine control systems.

10,99 €