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magnetic switch

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=94425
Printed Date: May 14, 2025 at 1:26 AM


Topic: magnetic switch

Posted By: Velocity Motors
Subject: magnetic switch
Date Posted: May 31, 2007 at 10:32 PM

I've never used a magnetic switch before and I have an install that requires 3 to be installed. The switch has two leads on it and the base, where are the two wires hooked to on the alarm ? TIA

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA



Replies:

Posted By: Ween
Date Posted: May 31, 2007 at 11:19 PM

hi,

let's see...with the magnet engaged/ in proximity to the switch, are the contacts to the switch open or closed?

if closed, you'll need to place the switches in series, one end of the string to ground, the other to the positive trigger input.  also on the positive trigger input, add a 4700 ohm resistor to 12volts constant.

if open, you can wire the switches in parallel.  one side to ground, the other to the negative trigger input ( hood/ trunk )

mark




Posted By: KPierson
Date Posted: June 01, 2007 at 9:53 AM

Whats the application?  How are the switches going to be interfaced?

The short answer is one side of the magnetic switch will go to ground (or power, depending on your application) and the other wire will go to your alarm (input depends on what you are trying to acomplish).

Basically, one wire is "Pin 30" of a relay and the other is Pin 87 (or 87A depending on what kind of switch it has).  Of course your magnetic switch most likely isn't high current. like a relay.



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Kevin Pierson


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