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We have this part available in Geppetto. Easy modular electronic design with Seeed and Geppetto. Build it Now!



  • Operate voltage: 3.3V-5V
  • Input current: 100mA
  • Rated load: [email protected] [email protected]
  • Contact resistance: 50mΩ @6VDC 1A
  • Insulation resistance: 100MΩ 10ms Max.
  • Operate time: 10ms Max.
  • Release time: 5ms Max.
  • Input interface: Digital


We've released the Seeed Relay Selection Guide, it will help you choose the relay that best suits your needs. 

The Relay is a digital normally open switch that controls a relay capable of switching much higher voltages and currents than your normal Arduino boards. When the relay is switched on, the LED will light up and the relay will allow current to flow. The peak voltage capability is 250V at 10A. 

With the help of the Grove System, engineers and makers can easily avoid jumper-wires problems. Seeed Studio has developed more than 300 Grove modules covering a wide range of applications that can fulfill a variety of needs.

If you are interested in finding out more about the Relay, you can check our Arduino Tutorial on How to Control High Voltage Devices with Relay Modules and Types of Relay - Which one should use?

Please exercise great care when working with mains voltages - if in doubt contact a professional such as a licensed electrician for help. 

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before you use the product.

Technical details

Dimensions 42mm x24mm x18.5mm
Weight G.W 19g
Battery Exclude

Part List

Grove - Relay 1
User Guide 1


HSCODE 8538900000
USHSCODE 8471490000
UPC 841454107774
EUHSCODE 8543709099
EU DoC 1
UK DoC 1



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  1. Product Quality
    from order view
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  2. Product Quality
    from order view
    Received my package of Grove Relays in less time than the estimated delivery. All relays were in the package and was able to put them to use right away. Easy Checkout and smooth experience.
  3. Product Quality
    from order view
    fast shipping, and safe packaging for international shipping
  4. Product Quality
    from order view
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  5. Product Quality
    from order view
    The screw contacts should be bigger. Maybe some kind of a daisy chain connection scheme for multiple relays off one Grove connector?


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