12V timer relays

(imondi) · (imondi) **Join Date: Aug 2010** 01-23-2011, 8:08 PM

So has anybody messed around with timer relays here? I am trying to wire a simple relay that will activate after having power for 5 mins or so and sound an alarm. Don't want to accidentally leave my ballast pumps on and kill the battery!

If you know anything about them, where can I get one?

(mikeski) · (mikeski) **Join Date: Aug 2003** 01-23-2011, 11:22 PM

just need a tdode relay (time delay on de energization). Standard electrical relay, might be a little tough to find one in 12V but it should not be that hard. There is also the good old twist timer if you want to okie rig it. I had one hidden in a box under the seat cushion of my old boat, worked great. A switch for forward/reverse and the twist timer to run the pumps.

http://www.factorymation.com/s.nl/it.A/id.5592/.f

(pdqwrx) · (pdqwrx) **Join Date: Jul 2007** 02-03-2011, 12:43 AM

Try

www.davidnavone.com

Give Dave a call and he can probably build you what you need.

(yubasanger) · (yubasanger) **Join Date: Jul 2007** 02-09-2011, 9:12 PM

PAC-audio the makes the TR7 has a user selectable time up to just over 4 minutes. Also depending on how good your skills with electronics are you can make a timer using a 555 timer some resistors and capacitors. Schematics and equations for what resistors and capacitors to use based on time delay desired.
http://www.PAC-audio/productDetails....&CategoryID=31

(yubasanger) · (yubasanger) **Join Date: Jul 2007** 02-09-2011, 10:19 PM

Try this one, last link didn't work
http://www.pac-audio.com/productDeta...&CategoryID=31