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Minimum Latching Voltage Specifications For Relays?


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rodneyriviera 
Member - Posts: 2
Member spacespace
Joined: May 10, 2024
Location: Australia
Posted: May 11, 2024 at 12:01 AM / IP Logged Link to Post Post Reply Quote rodneyriviera
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?
Many thanks from Down Under,
Rodney 😀😀😀😀😀😀😀
tonanzith 
Gold - Posts: 603
Gold spaceThis member consistently provides reliable informationspace
Joined: July 18, 2008
Location: Washington, United States
Posted: May 22, 2024 at 6:29 PM / IP Logged Link to Post Post Reply Quote tonanzith
A standard Bosch spdt relay will latch at about 7.8v and release at about 1.2v
Gary Sather
rodneyriviera 
Member - Posts: 2
Member spacespace
Joined: May 10, 2024
Location: Australia
Posted: May 23, 2024 at 1:04 AM / IP Logged Link to Post Post Reply Quote rodneyriviera
OK, I have one to try. Will report back with results.
Cheers and thank you!
Rodney 😀😀😀😀😀😀😀
Many thanks from Down Under,
Rodney 😀😀😀😀😀😀😀

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