4 Channel Arduino Relay Shield
4 Channel Arduino Relay Shield is backordered and will ship as soon as it is back in stock.
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For orders over 500g (such as bulky items), shipping may cost more than the initial estimate.
We deliver across Australia, and here are the options (based on your location; view them on the cart page):
- Standard Post: Starting at $7 (6+ business days, with tracking)
- Express Post: Starting at $11 (2+ business days, with tracking)
- Same Day Delivery: Available for Sydney orders.
- Non-metro WA, NT, SA, and TAS: May take an additional 2+ days.

This Relay Shield for Arduino acts like a switch. It is commonly used to control anything over 5V such as lamps, water pumps and garage doors.
One of the most interesting projects for your boards is perhaps being able to control High power devices like Lamps, water pumps, garage doors and so on. But interfacing with high power and AC is quite a dangerous task when building the circuitry. Relays allow for interfacing an external electrical circuit like a switch. With relays you can now connect external circuit or devices directly to your Arduino. This Arduino Shield is a completely newly designed that is able to control 4 relays at a time. The max switching power DC 90W or AC 360VA gives direct control by Arduino Uno/DFRduino controllers through digital I/Os with external 9V supply. With built-in Xbee socket, it can be wireless remote controlled via Xbee/bluetooth/WPM.
This arduino relay shield is an ideal solution for home automation and robotics applications.
NOTE:The Arduino board requires an external power supply to drive the xbee module and relays.
Warning:Pay special attention to the voltage that is over 38 volts.
FEATURES
- Compatible with Arduino UNO Rev3
- Each Relay has its own test button to test the connection
- Standard DFRobot 3 Pin out
- XBee I/O direct control
SPECIFICATION
- Compatible with Arduino Rev3
- 4 buttons to test module
- LED status indicator of relay
- Support Xbee IO directly control
- Xbee socket for wireless communication
- Selectable digital IO pin for control(Default digital 2,7,8,10)
- 6 channels Analog IO & 13 channels Digital IO
- Up to 4 Relay with photo-coupled circuit
- Contact Rating 3A AC 120V / DC 24V
- Max Switching Voltage AC 240V / DC 60V (Less than 38V is recommended)
- Max Switching Current 5A
- Max Switching Power AC 360VA / DC 90W
- Electrical Life (Min) 100,000 Operations
- Mechanical Life (Min) 10,000,000 Operations
- Safety Standard(relay) UL cUL TUV CQC
- Coil Working Voltage 9VDC
- Working temperature -30°C to +85°C
- Working Humidity 40% - 85%
- Size:95x65mm
DOCUMENTS
SHIPPING LIST
- Relay Shield for Arduino V2.1 x1
- Nylon stand-off with screw x2
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