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Relay Com, NO, NC

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=145353
Printed Date: April 28, 2024 at 10:02 AM


Topic: Relay Com, NO, NC

Posted By: milkmandelight
Subject: Relay Com, NO, NC
Date Posted: April 13, 2019 at 11:39 AM

my DB3 bypass wiring shows relay com . I understand relay NO , NC but cant find anything on COM . is this just putting negative thru pin 30 to send negative instead of positive to the load ?

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milkmandelight



Replies:

Posted By: the12volt
Date Posted: April 13, 2019 at 12:35 PM
https://www.the12volt.com/relays/spdt-and-spst-automotive-relays.asp

On a single pole double throw relay:
Common is 30
NC is 87a
NO is 87

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Posted By: milkmandelight
Date Posted: April 13, 2019 at 12:58 PM
I understand that . that is what is confusing about the wiring showing I need a relay com+ to the vehicle

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milkmandelight



Posted By: milkmandelight
Date Posted: April 13, 2019 at 1:34 PM
the12volt wrote:
https://www.the12volt.com/relays/spdt-and-spst-automotive-relays.asp

On a single pole double throw relay:
Common is 30
NC is 87a
NO is 87
could you delete my post ? I was reading the description of wire on vehicle not that I needed a relay there .

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milkmandelight


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