Grove - Relay
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ElectroMechanical Module Relay

Internal Reference: SS-010

Are you a hobbyist looking for an easy-to-use solution to control your next big project? Look no further than Grove – Relay! It’s a digital switch that’s designed to make your life easier. With its accurate measurement, simple setting, and multiple protection functions, Grove – Relay is perfect for electricians and hobbyists alike.

The Grove-Relay module is a digital normally-open switch that can handle the current up to 5A at 250VAC for long periods of time. 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. It is widely used in remote control, telemetry, communication, automatic control, mechatronics, power electronics, and other fields.

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.

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.


  • Digital-Switch: It has the advantages of accurate measurement, simple setting, multiple protection functions, and fast speed.
  • Maximum load of a normally open interface: AC 5v@250V, DC 5v@30V.
  • Easy to connect: The easy connection is just with jumper wires, no soldering tools are required.
  • Change the level state: High-level or low-level trigger can be set by wire jumper.
  • Friendly LED reminders: When the relay works, the power prompt light will light up.


  • Automatic control
  • Remote control
  • Electromechanical integration
  • Home appliance control
  • Electrical equipment

Technical Specification

  • Operate voltage: 3.3V-5V
  • Input current: 100mA
  • Rated load: 5A@250VAC 5A@30VDC
  • Contact resistance: 50mΩ @6VDC 1A
  • Insulation resistance: 100MΩ 10ms Max.
  • Operate time: 10ms Max.
  • Release time: 5ms Max.
  • Input interface: Digital
  • Dimensions: 42mm x24mm x18.5mm
  • Weight: G.W 19g