Relay Shield v3.0 – 4 Channel

£17.94 inc VAT

Availability: 1 in stock (can be backordered)

Brand: Seeed Studio
Part Number: 103030009
SKU: PP103030009
Barcode: 5055421000936
SKU: PP103030009 Category: Tags: , ,

Relay Shield V3.0

This Relay Shield provides four high quality relay that can control high current loads to Arduino / Seeeduino boards. It also provides NO (Normally Open) / NC (Normally Closed) interface. It could be a nice solution for controlling devices that could not be directly controlled by Arduino’s Digital I/Os. Standardized shield form factor enables smooth connection with Arduino and compatibles. The shield also has four LED indicators to show the on/off state of each relay.

Relays are useful in switching on/off AC appliances like fan, light, motor or high current DC actuators like solenoid valve etc…

Note: Exercise caution when dealing with AC. Get help from certified electrician.


  • Arduino/Seeeduino Shield compatible

  • Relay screw terminals

  • Working status indicators for each relay

  • High quality relays

  • Provides NO/NC interfaces

Channel1 Interface

  • COM1 – Common pin

  • NC1 – Normally Closed. Will be connected with COM1 when RELAY1 pin is set low and disconnected when RELAY1 is high;

  • NO1 – Normally Open. Will be connected with COM1 when ŸRELAY 1 pin is set high and disconnected when RELAY1 is low;


  • RELAY1-RELAY4 pins could be connected directly with Arduino pin number of 7-4, so that four relays could be easily controlled by the Arduino

Technical details

Dimensions100mm x67mm x30mm
WeightG.W 77g
Operating Voltage4.75V~5.25V
Operating Current:8~250 mA
Switching Voltage:250VAC/30VDC
Switching Current:15A/7A
Switching Power:70W
Relay Life:100,000 Cycle
ESD contact discharge:±4KV


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