Gravity: Digital 5A Relay Module

SKU: DFR0017

The Gravity: Digital 5A Relay Module article discusses the DFRobot Digital Relay Module, emphasizing its suitability for IoT and interactive projects. The module features an Omron G5LA high-quality relay for controlling high-current and high-voltage devices, such as lighting, solenoid valves, and motors. With a modular design, the relay module is easy to expand with Arduino, although Arduino is not included in the package. The module includes a LED indicator that shows the relay output state and is ready for plug-and-play use. It can be controlled via Arduino digital IO, allowing users to programmatically manage electrical flow in their projects. This relay module is ideal for those looking to integrate reliable and efficient electrical control into their IoT systems.

Angled shot of digital relay module for Arduino with screw terminals and optocoupler-DFRobot product sku:DFR0017 image.
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  • Specification

    Parameter Value
    Type Digital
    Rated through-current 10A (NO) 5A (NC)
    Maximum switching voltage 150VAC 24VDC
    Interface Digital
    Control signal TTL level
    Rated load 8A 150VAC (NO) 10A 24VDC (NO), 5A 250VAC (NO/NC) 5A 24VDC (NO/NC)
    Maximum switching power AC1200VA DC240W (NO) AC625VA DC120W (NC)
    Contact action time 10ms

    Pinout

    Label Name Description
    1 - GND
    2 + VCC
    3 D Control signal
    4 NC Normally Closed
    5 NO Normally Open
    6 N/A Empty Terminal
    7 COM Common port

    FAQ

    • Hi, I am using this 5A relay module with a Raspberry Pi 4 and a dc-dc voltage converter to swich on and off a LED. I observed that after some hours of continuous work, the relay does not work anymore, unless I rotate or tap the system. This thing seems weird... Is there anyone that experienced something similar?

      A brief description of the connections:
      1) dc-dc converter takes 24V from power supply and gives in output 5V DC/3000 mA
      2) Input pins of relay are connected to raspberry pin:
      "-" to GND pin raspi
      "+" to 5V pin raspi
      "D" to a GPIO pin raspi (controlled up and down via software)
      3) Output pins of relay are connected in this way:
      "COM" to +Vo of dc-dc converter (so 5V dc)
      "NO" to a resistor in series with a LED that is connected to GND of dc-dc converter

      Do you have any suggestions? Thanks

      Is 240V AC? because the maximum switching voltage is 250VAC / 30VDC. You can use Rpi to control this module.

    • Is this controllable with 3.3v signal?

    • can this be damage if is acidently conected on reverce polarity ?

      can this work on 3.3v?

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