Raspberry Pi 4 Channel Relay HAT


Availability: In Stock


SKU: RAS-075 Manufacturer: BC Robotics Inc. Mfg Part Number: RAS-075 Category: Tags: , , ,


Need to drive high current or high voltage devices with your Raspberry Pi? This premium 4 channel 10A relay HAT can handle it! Each relay has the Input, Normally Open, and Normally Closed contact broken out to a nice 5mm pitch screw terminal. This HAT is compatible with the Raspberry Pi A+/B+/2/3B/3+/4 and uses GPIO pins 4, 17, 27, and 22 (Pins 7,11,13,15) on the GPIO header. Each relay driver is connected to the GPIO through a solder jumper and can be alternatively connected through the 4 pin 0.100″ header if a custom configuration is required.

This board does not ship with a header so minor soldering will be required before it can be used with the Pi. We recommend a Tall GPIO Header for this board.

As of September 14th 2017 we are now shipping version 1.1 of this board. Version 1.1 adds isolation routing to the board and a few SMD components have been shifted around. It is otherwise functionally identical. This board Works with all “A” and “B” versions of the Raspberry Pi (Pi A+, B+, 2, 3, 3A+, 3B+, and Pi 4)

Please Note: While this board is capable of switching higher voltages, please exercise caution. If you are inexperienced or unsure about how to use this product safely we recommend looking at the IoT Power Relay, which has all of its high voltage circuitry fully enclosed.


  • Fits directly on the Pi's 40 pin GPIO header
  • Switch up to 10A per channel!


Weight 60 g


  1. David Espinoza (verified owner)

    I use over 7 of these shields every business day, with this project the relays switch on and hundreds of times a day for each chanel. For a year now they have all been operating with 100% efficiency. This part is extremely reliable and fits the raspberry pi perfectly. I recommend this shield for anyone using relays with there raspberry pi projects requiring more than the 5v output voltage.

    Note: It is easy to modify the shield too if you need to connect all channels with the same voltage. Just flip the board solder all commens to each other and you only need to supply the incoming voltage to one common pin.

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