Description: Your 5V system can wield great power with this big, beefy relay board. How does 10A on the NC contacts and 20A on the NO contacts at 220VAC sound? The SparkFun Beefcake Relay Control Kit contains all the parts you need to get your high-power load under control. Only minimal assembly is required!
The heart of the board is a sealed, SPDT 20A/10A Relay. The relay is controlled by 5V logic through a transistor, and an LED tells you when the relay is closed. This is a kit, so it comes as through-hole parts with assembly required, which makes for some nice soldering practice. Screw terminal connectors on either side of the board make it easy to incorporate into your project.
There are some pretty beefy traces connecting the relay to the load pins, but the 3-pin terminals are only rated for 15A max! If you plan on connecting a larger load, you’ll need to solder directly to the board. As always with high current and voltage, play it safe and use your judgment when deciding how much of a load you want to put on a board – in open airflow the PCB can handle the full 20A for a few minutes at a time, but in an enclosed area heat can build up.
Note: Please keep in mind that this board is really meant for someone with experience and good knowledge of electricity. If you’re uncomfortable soldering or dealing with high voltage, please check out the PowerSwitch Tail II. The PowerSwitch Tail II is fully enclosed, making it a lot safer.
Based on 9 ratings:
1 of 1 found this helpful:
I have several projects where I need to be able to turn larger pieces of equipment on and off and I’ve been making my own relay controllers but these little kits put everything together in one nice package and the price it good. I haven’t had mine in service for long so I’ll re-post if I have any problems in the future, but so far so good. The LED is a nice addition. My only concern is that people could shock the crap out of themselves if this isn’t properly enclosed in a box. But then again, that’s what makes it fun right?
1 of 1 found this helpful:
I purchased 3 beefcake relay kits for a water control project. Two of them were exactly as advertised, but the third was missing one 1k resistor and had an extra transistor. I used a 1k from my junk box and completed the kit. They will be operating in a humid environment so durability remains to be established. I used two soldering irons - a small one for the low voltage side and a big one for the relay pins.
The Beefcake Relay Control Kit (Ver. 2.0) Is an amazing kit. It is easy to assemble and works wonderfully. It works great with the Arduino and the Raspberry Pi.
Easy to assembly and cost effective
Easy to assemble and fairly cheap. I have 10 of them in use in my swimming pool control system.
i just now finished soldering the kit together. purpose: to switch a DC motor which is actually a fountain pump, using the Arduino. the fountain pump is for a hydroponics grow-tower, so, using the “blink” sketch with the delay set to 1-million (about 16-ish minutes) that gives the plants 16 minutes on, 16 minutes off, of hydroponic solution. it’s sitting beside me as i type this and is working perfectly! thanks guys!
Easy to solder together and assemble. Have three running off an Arduino Uno to cycle power to different sensors for testing. Works great.
Works great and is as advertised. However I would add if you are using a RPi to control this (3.3v) then change the gate resistor to 660 ohms so that the current stays above 5mA and will properly trigger the transistor.