12V 50Amp Forward and Reverse Relay Module for Motor/Linear Actuator, Reversing Relay Module

I used it to replace a missing rear window relay on a Toyota Tundra. It works great just make sure to wire the control side of the circuit into something that’s only hot when the vehicle is on or it will drain your battery. Very simple.

Currently using this with an arduino to do cycle testing with a linear actuator. This has switched several thousand times so far without issue.

Update 2/18/2021 - READ BEFORE BUYING!! I didn’t originally have the mating connector to the regulator I used and when I got it later and went to install, I discovered that although my ignition was off (entire system triggered by an ignition-on fuse/relay), both motor leads had power! So it seems that the way this module is wired, it is the exact opposite of what I believe makes sense, with power to the leads at all times - it works by switching one of it’s two relays from the NC to NO position and grounding that side. In order to save my triggering relay, I currently have it breaking the ground connection to the module, however I believe I’m going to switch that to the positive lead from the battery, so hot stops there when the ignition is off. Take a look at my sketches showing how the module IS and how I believe it SHOULD BE wired (SB). Note that by following the wiring of the SB sketch and using two relays with both NC and NO circuits, you can replicate this module. Amazon sells bags of five 30 and 40 amp relays for around $15, if I recall... As the module currently is, it really has zero benefit, versus a motor-reversing momentary switch (also on Amazon for something like $10-15) and in fact is not as beneficial as with the switch, power stops there when not actuated... In summary: NOT RECOMMENDED, at least for automotive applications. PS - customer service in China... _________________________________________ Original review below: I used this to add power to the rear sliding window of a pickup truck. It is exactly as described and so far, works fine. My application is up to 15 amps - I just wish they made one of these intermediate to the 10 amp model and this (50 amp), as this one is a little large and difficult to find a good place to mount (dimensions in ad, so not a complaint). Also, the 10 amp model has leadwires, so you can make sealed (heat-shrink tubing), crimped or soldered connections, whereas this one has exposed connections. I suppose I could have taken it apart, done away with the turrets, etc and made my connections inside and had them exit through a grommet, but I didn’t...

I pigtailed this relay with the original up/down switch and an RF relay to give us remote control of the motorized jack knife bed in our RV. I needed a 20 amp relay and the OONOs came in 10 and 50, so a little overkill. This relay works perfectly, applying direction and power when either the forward or reverse "signal" is applied. I would rather have had regular nuts instead of the "finger nuts", and will probably replace those with nuts and lock washers. I would also have liked a lower profile, but at 50 amps, that might not be possible. Fortunately, I found a hidden location with a lot of space.