Minimum Latching Voltage Specifications For Relays?
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=148028
Printed Date: May 02, 2025 at 2:25 PM
Topic: Minimum Latching Voltage Specifications For Relays?
Posted By: rodneyriviera
Subject: Minimum Latching Voltage Specifications For Relays?
Date Posted: May 11, 2024 at 12:01 AM
Hi all,
First time user on this forum but am active on other automotive forums (AACA and Riv Performance).
Wanting to find a specification for a Normally Open 12V automotive relay for the minimum latching voltage?
I am doing a modification on a ‘97 Buick Riviera that needs two relays that have a latching voltage greater than 7.2V (9v would be ideal)
This is to enable both Lo Beams to remain on with the Hi Beam. The problem is the Daytime Running Lights are providing 7.2v - 7.4v to the Hi Beam which then triggers most of the relays I have tried.
I did find and am using one from a batch that requires more than 7.2V however would like to be a bit more scientific than trial and error (luck).
Do any manufacturers list a minimum latching voltage with their specifications?
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Many thanks from Down Under,
Rodney 😀😀😀😀😀😀😀
Replies:
Posted By: tonanzith
Date Posted: May 22, 2024 at 6:29 PM
A standard Bosch spdt relay will latch at about 7.8v and release at about 1.2v
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Gary Sather
Posted By: rodneyriviera
Date Posted: May 23, 2024 at 1:04 AM
OK, I have one to try. Will report back with results.
Cheers and thank you!
Rodney 😀😀😀😀😀😀😀
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Many thanks from Down Under,
Rodney 😀😀😀😀😀😀😀
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