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rating on relay coils??

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=9493
Printed Date: May 28, 2024 at 11:14 PM


Topic: rating on relay coils??

Posted By: demeanor
Subject: rating on relay coils??
Date Posted: February 13, 2003 at 9:15 PM

this is the problem i've encountered...https://www.the12volt.com/installbay/display_topic_threads.asp?ForumID=3&TopicID=9491&PagePosition=1#thread

could the output of the brain be less than the coil needs to close?  if so, how would i be able to fix that? 

hey 12Volt...lend out an hand...  :-)



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It's better to ask a "STUPID" question...than to know a "STUPID" answer. :-)



Replies:

Posted By: NowYaKnow
Date Posted: February 13, 2003 at 9:47 PM

From what I can remember a standard automotive type relay needs ~ 150 mA to trigger..Later,

Mike




Posted By: demeanor
Date Posted: February 15, 2003 at 7:34 PM
the reason why i was asking, the literature that came withthe alarm states that the wire provides a 30mA ground...? what does that mean if i need 150mA.?


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It's better to ask a "STUPID" question...than to know a "STUPID" answer. :-)



Posted By: mobiletoys2002
Date Posted: February 21, 2003 at 9:46 PM
it should be more than that but a transistor would work by adding a liitle power to the output to triger relay .



Posted By: mobiletoys2002
Date Posted: February 21, 2003 at 9:47 PM
a standard automotive relay can draw 150 ma while the coil is energized.that would be correct.


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