Switches that open the neg.

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=61962
Printed Date: November 04, 2025 at 3:52 AM

Topic: Switches that open the neg.

Posted By: dk77
Subject: Switches that open the neg.
Date Posted: August 24, 2005 at 11:25 AM

Why is the neg. conductor opened on low voltage switches. Why not open the 12v positive?

Replies:

Posted By: dk77
Date Posted: August 24, 2005 at 11:41 AM

Sorry for not saying hello first.

Hello, all. I am most definitely a noob, this being my first post. After looking at different diagrams and schematics, I have noticed that a lot of inputs open the negative side of a circuit and not the positive. I am curious as to why this is. Higher voltage circuits never open a grounded or grounding conductor.

Posted By: geepherder
Date Posted: August 26, 2005 at 7:31 PM

Welcome to the forums. Ground switching actually keeps arcing across the contacts of the switch to a minimum.

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My ex once told me I have a perfect face for radio.

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