open circuit that closes a relay momentarily
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=138495
Printed Date: May 06, 2025 at 11:57 PM
Topic: open circuit that closes a relay momentarily
Posted By: brenta929
Subject: open circuit that closes a relay momentarily
Date Posted: February 16, 2015 at 3:55 PM
Hey guys,
New to the forum...looks like some good info here.
I need some assistance. I have a circuit (12V) that energizes a light. When the light goes off or should I say, when the circuit is open, I would like to close a relay momentarily to deactivate a different switch. This switch is currently a momentary switch. Any ideas? I can make a drawing if that helps.
Many thanks, Brent
Replies:
Posted By: oldspark
Date Posted: February 17, 2015 at 1:30 AM
Look at the DEI 528T.
Posted By: brenta929
Date Posted: February 17, 2015 at 10:29 AM
Oldspark,
Thanks, I'll give it a look...
Is there one you would recommend?
Thanks, Brent
Posted By: brenta929
Date Posted: February 17, 2015 at 10:32 AM
Ooooopppsss
Nevermind...DEI stands for Directed Electronics Inc.
Duh, sorry!
Brent
Posted By: brenta929
Date Posted: March 10, 2015 at 7:46 AM
Just an update...
I got it working! The DEI 528T (pulse timer relay) allows me to pulse the timer circuit when the light turns off or when the circuit opens. Pretty cool little product. My only complaint is upon powering it up, it cycles on and off. I can live with that for now...
Anyway, just thought I would share the progress.
Thanks, Brent
Posted By: hotwaterwizard
Date Posted: April 04, 2015 at 7:46 PM
Yes a Drawing would help alot. How good are you with circuits?
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John DeRosa (Hotwaterwizard)
Stockton California
When in doubt, try it out !
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