Amazon Resale
Prime Member Price
£7.19
Dispatches from: Amazon
Sold by: ELEGOO Official - UK
This price is exclusively for Prime members.
Cancel at any time
Already a member? Sign in
Dispatches from
Amazon
Amazon
Dispatches from
Amazon
Returns
Returnable within 30 days of receipt
Returnable within 30 days of receipt
Item can be returned in its original condition for a full refund within 30 days of receipt
Read full return policy
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
FREE Returns
FREE delivery Sunday, 19 October on your first order to UK or Ireland. Details
Or fastest delivery Saturday, 18 October. Order within 7 hrs 35 mins. Details
In stock
££7.19 () Includes selected options. Includes initial monthly payment and selected options. Details
Price
Subtotal
££7.19
Subtotal
Initial payment breakdown
Delivery cost, delivery date and order total (including tax) shown at checkout.
Dispatches from
Amazon
Amazon
Dispatches from
Amazon
Returns
Returnable within 30 days of receipt
Returnable within 30 days of receipt
Item can be returned in its original condition for a full refund within 30 days of receipt
Read full return policy
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more

ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

4.5 out of 5 stars 391 ratings
£7.19 with 10 percent savings
RRP: £7.99
FREE Returns
Exclusive Prime price
if you qualify Qualifying items | Terms
on any 4 Qualifying items | Terms
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.
Size Name: 4 channels

About this item

  • 5V Active Low Operation: This relay module operates at 5V and should not be powered by 3.3V, as it may not drive the relays effectively. Ensure the power supply current exceeds 1A for reliable performance.
  • High Current Handling: Each relay can handle maximum contact ratings of AC250V 10A and DC30V 10A, making it suitable for controlling various appliances and devices requiring high current. Working status indicator lights are conducive for the safety use
  • Standard Microcontroller Interface: Features a standard interface for direct connections with microcontrollers such as Arduino IDE, Raspberry Pi, STM32, AVR, PIC, and ARM, allowing for easy integration into projects.
  • GPIO Low-Level Logic Control: This 4-channel relay module utilizes low-level logic voltage to drive the relays, which reduces power consumption and protects the control board from damage. This allows ESP32 and Raspberry Pi GPIOs to directly control the relays without the need for external transistors or logic-level converters.
  • Applications: Widely used for all MCU control, industrial sector, PLC control, smart home control.
› See more product details
Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

Top Brand

ELEGOO

96% positive ratings from 1K+ customers

10K+ recent orders from this brand

Product Information

Technical Details

Manufacturer ‎ELEGOO
Part number ‎UK-EL-SM-006
Item Weight ‎60 g
Product Dimensions ‎7.01 x 5.99 x 2.01 cm; 60 g
Item model number ‎UK-EL-SM-006
Size ‎4 channels
Item Package Quantity ‎1
Plug profile ‎Socket Mount
Included components ‎4-Channel Relay Module x1
Batteries included? ‎No
Batteries Required? ‎No

Additional Information

ASIN B06XK6HCQC
Customer Reviews
4.5 out of 5 stars 391 ratings

4.5 out of 5 stars
Best Sellers Rank
Date First Available 21 Nov. 2018

Feedback

ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?
/
/
/
/
Please sign in to provide feedback.

What's in the box?

  • 4-Channel Relay Module x1

    • From the brand

    Previous page

    2. ELEGOO ​STEM kits provide all the necessary components, sensors, wires, and boards for you to get started with programming, learning electronics, and creating IoT projects.

      We strive our best to make STEM education easy to learn and accessible to the young generation.

    3. ELEGOO Pre-soldered NANO Board with Headers USB C Compatible with Arduino
      ELEGOO ESP-32 Display 2.8 Inch Touchscreen with Acrylic Protector 240x320 TFT LCD Module for Proj...
      Two identical black circuit boards with silver components and pins, appears to be microcontroller or development boards with integrated circuits and connection points.
      ELEGOO ESP-32 Development Board USB C, 2.4GHz Dual Mode WiFi+Bluetooth Dual Core Microcontroller ...

      New Release

      Visit the store

    4. the robot is a robot that can be used to drive a car.
      ELEGOO Tumbller Self-Balancing Robot Car Kit Compatible with Arduino IDE STEM Kits Toys for Kids ...
      the robot is a robot that can be used to drive cars.
      Small robotic device with black rubber tracks and turquoise body components, featuring sensor or camera elements mounted on top.

      DIY Robotic Car Kits

      Visit the store

    5. ELEGOO Mega R3 Project The Most Complete Ultimate Starter Kit Barebone PCs Compatible with Arduin...
      ELEGOO UNO R3 Project The Most Complete Ultimate Starter Kit Compatible with Arduino IDE w/TUTORI...
      ELEGOO UNO R3 Project Super Starter Kit Compatible with Arduino IDE with Tutorial, 5V Relay, UNO ...
      ELEGOO UNO Project Basic Starter Kit with Tutorial and UNO R3 Board Compatible with Arduino IDE f...

      Starter Kits

      Visit the store

    6. Arduino Mega development board with blue USB cable, showing microcontroller components and connection ports.
      Black Arduino Mega development board with USB connection port, shown with attached blue USB cable against white background.
      Arduino UNO or similar microcontroller board with USB cable, featuring multiple pins, integrated circuits, and black circuit board.
      Multiple small blue Arduino Nano circuit boards arranged in rows, showing both top and bottom views. Each board features gold-plated pins, integrated circuits, and USB connectors.

      Controller Boards

      Visit the store

    7. ELEGOO 3m and 5m Diffused and Clear Assorted LED Kit 5 Colors, Pack of 600 (3mm and 5mm 5 Colors)...
      Electronics component set featuring four green circuit boards, five small stepper motors with red and black wires, and rainbow-colored ribbon cables connecting components.
      Text reads 'ELEGO' in blue letters. Product images showing software interface and CD/DVD with Elego branding.
      Text reads 'Sensor'. Collection of ultrasonic sensor modules with three circular elements, shown with rainbow-colored connecting wires and technical documentation.

      Accessories that will be used

      Visit the store

    8. How did we get started?

      Chris, the founder of ELEGOO, found out that most enterprises in the STEM industry focused on open-source electronics hardware and did not have the tools to create a complete product by combining electronic hardware and structural shells.

      What makes our products unique?

      We have excellent R&D teams, constantly upgrading and improving products, and after-sales service teams for quick support

      What product are we creating?

      100% compatible with Arduino, ELEGOO's kits are best-practice for beginners with no appropriate technical tools to learn about electronics.

    Next page

    Product Description

    ELEGOO 4 Channel&8 Channel DC 5V Relay Module with Optocoupler

    · Switching capacity available by 10A in spite of small size design for highdensity P.C. board mounting technique.

    · UL,CUL,TUV recognized.

    · Selection of plastic material for high temperature and better chemical solution performance.

    · Sealed types available.

    · Simple relay magnetic circuit to meet low cost of mass production. Widely used for Domestic appliance, office machine, audio, equipment, automobile, etc. ( Remote control TV receiver, monitor display, audio equipment high rushing current use application.)

    ELEGOO 8 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA R3 Project

    Power Supply : 5V

    Load Voltage : AC 250V 10A,DC 30V 10A

    Current Rating: Typical current for 4-channel relay is around 400mA; for 8-channel relay, approximately 700mA. Strongly recommend using an external 5V 1A power supply and common ground with the control board.

    Total Size : 134mm x 52mm x 17mm/ 5.3" x 2.0" x 0.7" (L*W*H)

    Mounted Hole Size : 3mm/ 0.12"

    Upper Mounted Hole Center Distance : 129.2 x 46.7mm/5.1" x 1.8"(L*W)

    Lower Mounted Hole Center Distance : 128.5 x 46.7mm/5.1" x 1.8"(L*W)

    Material: Electric Part

    Weight: 122g

    Notice: The input signal trigger mode is a low-level effective mode that ‘closes’ the normally open (NO) switch at low-level input. The advantages of a low-level drive, are the system power reset, the load will not work, and high security.

    ..................FAQ..................

    Q1: Why some channels of the four-channel/eight-channel relay module do not work?

    A1: The relay module is triggered by a low-level voltage. The relay module requires nearly 70ma current per channel. This problem will occur if the power supply is insufficient. Please use a 5V/1A or higher power supply to power the relay module.

    Q2: Is the relay module a high-level trigger or a low-level trigger? What is the working voltage? What is the operating current?

    A2: This module is low-level triggered, and the current on the IO pin is less than 2ma when low-level triggered. The module is compatible with 3.3V TTL level, but the power supply voltage must be 5V, and the operating current of one relay is 70ma.

    Q3: Cannot insert the relay into the breadboard?

    A3: You have to bend the middle pin of the relay slightly to the right before you can insert it into the breadboard.

    ELEGOO Relay Module DC 5V
    ELEGOO DC 5V Relay Module
    ELEGOO UNO R3 Board
    ELEGOO Multicolored Dupont Wire
    ELEGOO 830 Points Breadboard
    ELEGOO Upgraded 37 in 1 Sensor Modules Kit
    Buying Options
    Buying Options
    Buying Options
    Buying Options
    Buying Options
    Buying Options
    Customer Reviews
    4.5 out of 5 stars 391
    4.5 out of 5 stars 391
    4.6 out of 5 stars 258
    4.7 out of 5 stars 13,816
    4.5 out of 5 stars 1,192
    4.6 out of 5 stars 537
    Price £7.19 £9.89 £13.49 £6.29 £8.99 £26.99
    Compatibility with Arduino ✓ ✓ ✓ ✓ ✓ ✓
    Amount 4 Channels 8 Channels 1 PCS 120 PCS 3 PCS 37 PCS
    Occasion Circuit protection, high power and automation control Circuit protection, high power and automation control Standard entry-level development board, suitable for basic experiments and learning Connection to breadboards, easy for prototyping and development boards Can be used for electronic circuit experiments without soldering Collect and sense data from the external or internal environment

    Customer reviews

    4.5 out of 5 stars
    391 global ratings

    Customers say

    Customers find the relay module works well with Arduino boards and appreciate its great quality and compact design. The product is easy to add to setups, comes with a tiny screwdriver for terminals, and offers good value for money. Customers find it useful, with one mentioning it's perfect for automation with Raspberry Pi. The durability receives mixed feedback, with one customer reporting it died after two weeks of use.

    Select to learn more

    FunctionalityBuild qualityValue for moneyEase of setupUseScrewdriverCompactnessDurability
    40 customers mention ‘Functionality’31 positive9 negative

    Customers find that the relay module works well with Arduino boards and is reliable.

    "Good product Works well" Read more

    "Works fine!" Read more

    "Fast delivery and it works with my Arduino board using the GPIO pins...." Read more

    "...to mention in the poor English description that the relays operate with an active low. Active high is what most people would expect and want...." Read more

    38 customers mention ‘Build quality’33 positive5 negative

    Customers praise the build quality of the relay module, describing it as a nice little unit with excellent relays.

    "Prompt and professional, good product and as described." Read more

    "Excellent product." Read more

    "...Nice little unit well made with no faults or issues" Read more

    "Great product used this in the car as a coustom strobe light controller...." Read more

    14 customers mention ‘Value for money’13 positive1 negative

    Customers find the relay module to be a great value.

    "...So, good value, worked eventually, but can't comment on longevity which other reviewers have questioned...." Read more

    "Great price but no instructions and seemly not able to download them from the Elegoo website...." Read more

    "Bought for projects and self learning with Arduino based products. Does the job and not had any issues." Read more

    "Well made, does it's job and is cheaper than buying the bits and making your own." Read more

    9 customers mention ‘Ease of setup’9 positive0 negative

    Customers find the relay module easy to set up and integrate into their projects, with one customer noting it's as simple as connecting +5v and GND.

    "...It doesn't come with any instructions though but it is as simple as +5v / GND and then 4 pins for each relay connected to 4 GPIO pins." Read more

    "Brilliant and really easy to add to my setup." Read more

    "Well made, does it's job and is cheaper than buying the bits and making your own." Read more

    "Easy to set up and use excellent product arrived on time and have thought for others recommend anybody..." Read more

    6 customers mention ‘Use’6 positive0 negative

    Customers find the relay module very useful, with one mentioning it's perfect for any application and another noting its handy automation capabilities with Raspberry Pi.

    "...Sounds great, very reliable. Tiny screw driver is useful and adorable." Read more

    "...for the terminals and a ribbon cable for connecting up - very useful! I can't comment on the life expectancy of the relays though." Read more

    "Very useful to have all 4 relays on a single board. It makes for a very compact control output. Easy to connect and works ok." Read more

    "Handy automation with Raspberry PI..." Read more

    5 customers mention ‘Screwdriver’5 positive0 negative

    Customers appreciate that the relay module comes with a tiny screwdriver for the terminals.

    "...together a treat, all running off 4.5 - 5V. Also comes with a tiny screwdriver for the terminals and a ribbon cable for connecting up - very useful!..." Read more

    "...Mines been fine. Comes with a tiny screwdriver for the terminals. All in all, it’s perfect." Read more

    "Cross head terminal screws. Sounds great, very reliable. Tiny screw driver is useful and adorable." Read more

    "It comes with a handy little screwdriver for the screws on the unit. That was a nice touch...." Read more

    3 customers mention ‘Compactness’3 positive0 negative

    Customers appreciate the compact size of the relay module.

    "...It makes for a very compact control output. Easy to connect and works ok." Read more

    "Compact, easy to use, well laid out and fair value for money." Read more

    "Small form and less hassle than making your self...." Read more

    5 customers mention ‘Durability’1 positive4 negative

    Customers report durability issues with the relay module, with multiple customers noting it fails after short periods of use, including one who mentions it died after two weeks and another who experienced it burning out after 10 minutes.

    "As another reviewer said, this relay really doesn't like extended use. The first relay on the board died after about 9 days...." Read more

    "DONT USE IT FOR 24/7 PURPOSES...." Read more

    "It burnt out after 10 minutes of use...." Read more

    "...how many times the relays have been switched but they are still holding strong." Read more

    Burnt out and started smoking
    1 out of 5 stars
    Burnt out and started smoking
    It burnt out after 10 minutes of use. My electronics professor checked all of my connections before and after the incident and he said that they were all fine
    Hide
    Thank you for your feedback
    Sorry, there was an error
    Sorry, we couldn't load the review

    Top reviews from United Kingdom

    • TonyK
      5.0 out of 5 stars Seems very good
      Reviewed in the United Kingdom on 24 August 2020
      Size Name: 8 channelsVerified Purchase
      Very neat little piece of kit. I'm using this module interfaced with IR detectors for train detection on hidden model railway storage loops. The IR detectors have an output which goes low when an object is detected and this module requires an input which goes low to activate the relay, so they work together a treat, all running off 4.5 - 5V. Also comes with a tiny screwdriver for the terminals and a ribbon cable for connecting up - very useful! I can't comment on the life expectancy of the relays though.
      One person found this helpful
      Helpful
       Report
    • David Coward
      5.0 out of 5 stars Well made and works perfectly
      Reviewed in the United Kingdom on 21 November 2023
      Size Name: 4 channelsVerified Purchase
      Compact, easy to use, well laid out and fair value for money.
      Helpful
       Report
    • Alex Perkins
      4.0 out of 5 stars Reliable, but the relays are poor quality - switch them out for Omron
      Reviewed in the United Kingdom on 28 February 2020
      Size Name: 4 channelsVerified Purchase
      Like others the board is very good, but the relays have a tendancy to latch in a closed state if they have been energised for a period of time. I switched out the relays for OMRON G5LA-14-5VDC - you can't buy them here anymore as OMRON have discontinued them, but ebay has plenty of listings still from China (i used the seller smallpartsbigdifference) and they have been rock solid since.
      2 people found this helpful
      Helpful
       Report
    • Norrie
      5.0 out of 5 stars Does what it says and good value
      Reviewed in the United Kingdom on 21 September 2025
      Size Name: 4 channelsVerified Purchase
      Easy to control and does exactly what I wanted it to do - control a 12v pump and double water/Solenoid Valve for an irrigation system
      Helpful
       Report
    • Mr Craig D Arthur
      5.0 out of 5 stars 8 channel relay
      Reviewed in the United Kingdom on 24 July 2025
      Size Name: 8 channelsVerified Purchase
      Nice that it comes with a screwdriver
      Helpful
       Report
    • Drawingboard82
      5.0 out of 5 stars Worked out of the box
      Reviewed in the United Kingdom on 3 April 2021
      Size Name: 4 channelsVerified Purchase
      Beware that there is no documentation, and the relays operate when their associated control pin is driven to ground, not when it is driven high. I didn't realise this at first and assumed the unit was faulty. It isn't. Its a good system because it draws very little current from the associated microcontroller.
      Helpful
       Report
    • Oliver A. Williams
      5.0 out of 5 stars Incredible value
      Reviewed in the United Kingdom on 29 December 2018
      Size Name: 8 channelsVerified Purchase
      Excellent relays, opto-isolated etc. There is no way you could make something cheaper yourself. I have no idea how this is so cheap. Bought a couple, solid, reliable with or without Arduino.
      Helpful
       Report
    • Curmudgeon
      3.0 out of 5 stars Easy to setup and use but died after only two weeks use ...
      Reviewed in the United Kingdom on 2 July 2018
      Size Name: 8 channelsVerified Purchase
      I have both the 4 and 8 relay boards from elegoo and although they both look very similar as far as component layout, the 8 channel board has become unreliable after only a few weeks of use.
      2 people found this helpful
      Helpful
       Report

    Product Summary: ELEGOO Relay Module 4 Channel DC 5V with Optocoupler for Arduino UNO R3 MEGA Project 1280 DSP ARM PIC AVR STM32 Raspberry Pi

    From ELEGOO

    4.5 out of 5 stars, 391 ratings

    Customer reviews

    Price

    One-time purchase: £7.99

    All prices include VAT.

    Purchasing options

    Other sellers

    Other sellers

    About this Item

    • 5V Active Low Operation: This relay module operates at 5V and should not be powered by 3.3V, as it may not drive the relays effectively. Ensure the power supply current exceeds 1A for reliable performance.
    • High Current Handling: Each relay can handle maximum contact ratings of AC250V 10A and DC30V 10A, making it suitable for controlling various appliances and devices requiring high current. Working status indicator lights are conducive for the safety use
    • Standard Microcontroller Interface: Features a standard interface for direct connections with microcontrollers such as Arduino IDE, Raspberry Pi, STM32, AVR, PIC, and ARM, allowing for easy integration into projects.
    • GPIO Low-Level Logic Control: This 4-channel relay module utilizes low-level logic voltage to drive the relays, which reduces power consumption and protects the control board from damage. This allows ESP32 and Raspberry Pi GPIOs to directly control the relays without the need for external transistors or logic-level converters.
    • Applications: Widely used for all MCU control, industrial sector, PLC control, smart home control.

    Product description

    4-channel relay output modules, relay output contacts 250A 10A. Input IN1, IN2, IN3, IN4, the signal line LOW effective. VCC, GND power input, can relay a separate power supply relay power input of JD-VCC. Uses: 1, support all MCU control. 2, the industrial sector; 3, PLC control; 4, smart home control; Note: You can download the datasheet from the link below: http://bit.ly/2jKlJMO

    Options Available

    Size Name

    • 4 channels
    • 8 channels
    Browse all available options
    Report an issue with this product or seller

    Feedback

    Did you find this product summary feature useful?

    Thank you for your feedback
    Thank you for your feedback. You selected "Yes, it is useful"
    Thank you for your feedback. You selected "No, it is not useful"
    Product summary presents key information. Close to see all product details.