Time delay on relay
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=143616
Printed Date: May 12, 2025 at 5:09 PM
Topic: Time delay on relay
Posted By: tlautens
Subject: Time delay on relay
Date Posted: October 11, 2017 at 9:28 PM
I was wondering if there is a way to wire a relay to turn on after seeing a 12v D.C. Switched source? Basically I need the relay to turn on about 20 sec after seeing the 12v switch source.
Replies:
Posted By: i am an idiot
Date Posted: October 13, 2017 at 9:52 AM
Posted By: howie ll
Date Posted: October 13, 2017 at 1:36 PM
Or use a DEI 528t
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: tlautens
Date Posted: October 13, 2017 at 5:18 PM
Did the research the 528t turns on when it sees the switch voltage. I need a relay that will turn on after 15sec after seeing the switch voltage and only stay turned on for 5 sec.
Posted By: i am an idiot
Date Posted: October 13, 2017 at 8:01 PM
In your original post you said nothing about only staying on for 5 seconds. The thing I posted will do what is specified in your original post. It will remain on as long as 12 volts is applied.
Posted By: howie ll
Date Posted: October 14, 2017 at 1:40 AM
Use 2 X 528t in series and next time remember to tell us about staying on for 5 seconds, it might have helped.
-------------
Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: tdbaker021
Date Posted: October 15, 2017 at 2:23 PM
Try a PAC TR12
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