Delay Timer Relay Self-locking Delay On Off Time Switch DC 5V/12V/24V(DC24V)

No documentation!

Led flashed once and it was done. at 24vdc.

This product shows signs of prior use (Used) The screw terminal housing shows some deformity as if a larger than required size screwdriver was used to adjust the screws.But I also realized i bought the wrong version (24V DC instead of 12V DC), so I never got it to work. But for $5.00 (well $5.57) it's not even worth the effort to send it back, I'll just swap the 24V coil relay to a 12V one myself and troubleshoot any other issues.

I figure if your reading reviews you have already read the description and are looking for more information. I'll tell you what I used it for, and what it did, and how and why I modified it to better suit my needs.So in my case I was working on a home made MIG wire feeder for my miller trailblazer welder. I successfully got it working and discovered an unexpected problem. When the arc solenoid and gas solenoid stopped receiving power at the same time as the wire feed there was a latency that caused me to have extra wire stick out. This is because the drive still had inertial energy and coasted to a stop. Perhaps I could have installed a brake, instead I went looking for a reasonably priced relay with an adjustable OFF delay so that while the wire coasted to a stop the gas and arc would continue for a short time to burn off that pesky extra length of wire.In ready made MIG welders this is already included either preset or adjustable. BUT since I made this wire feed I had to figure this out on my own.I thought that 0-120 seconds would work by just using the low range end of the adjustment. Well I guess technically it would have worked... but I wasn't satisfied with almost adjustable to almost just where I wanted it. So what I did was look at the little cermet potentiometer and I saw 103 with 13 on the side... I assumed 103 was 10 with 000 or 10k ohms and ordered a nice wire wound 10 turn 10k potentiometer with a nice fancy dial.I removed the cermet one... used to servo wire to extend the new potentiometer and carefully soldered it in. NO JOY... wasn't working as intended. About then my friend who is much more refined than I am pointed out that I bought the wrong value potentiometer. I'm prettt sure he was right...but I won the battle anyway.So potentiometer wired in...instant on instant off no delay on mode 4So I tried the 100k resistor I had on hand on one leg of the pot.2 minute delay and no noticeable change via the pot. I learned 2 things at that point. 2 min is the maximum value for this period. And 100k was not the right value.I tried 10k resistor....nope but I had some adjustment now.5k resistor closer...5k resistors as a parallel pair for 2.5k better..1k better...500 ohm much better...220ohm better100....50...20...very very close10ohms......perfect...0-3 seconds fully and smoothly adjustable over 10 turns.I'll take some pictures tomorrow after work to better illustrate this. And perhaps a video.The unclear at least to me directions for wiring into the circuit....Pos to positive 24vdcNeg to negative 24vdc both as constant on from battery or power supply.Common to one leg of circuit being controlled...NO or NC to other leg of controlled circuit. NO means normally open or Normally OFF will turn on when relay active. NC means Normally closed or normally on and turns OFF when relay active. Remember it is only rated at 10 amps...if you need more get a bigger relay or solenoid and have this control that.Tx this is where your switch, other relay, or some other control signal goes. When this sees a high signal (gets power fed to it) it will activate the relay.Hope this helps for someone with their project. Have fun.

Used it to keep a voltage inrush to a 1 sec duration.