Print Page | Close Window

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: May 04, 2025 at 10:58 PM


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 ?

-------------
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

-------------
posted_image the12volt • Support the12volt.com



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

-------------
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 .

-------------
milkmandelight


Print Page | Close Window