wiring in a 12 vdc spdt 30 amp relay

Printed From: the12volt.com
Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=116590
Printed Date: May 31, 2024 at 6:45 PM

Topic: wiring in a 12 vdc spdt 30 amp relay

Posted By: boxerz1
Subject: wiring in a 12 vdc spdt 30 amp relay
Date Posted: September 28, 2009 at 5:50 PM

I drive a 1995 S10 blazer that was my dads previous work car. The fan speed switch went out so he cut the wires on the fan so he wired it up and ran a hot wire into the blazer to a toggle switch and ground out where the console used to be. My question is, I bought a 12 V DC SPDT 30 amp relay and want to hook it up to a switch so I dont burn it out. How would I wire this in to my vehicle posted_image

Replies:

Posted By: i am an idiot
Date Posted: September 28, 2009 at 8:52 PM

Connect terminal 30 to the battery via a 10 Gauge wire and a 30 amp fuse AT the battery. Connect terminal 87 to the positive wire of the fan. Ground the negative connection of the fan.
Ground terminal 85 of the relay. Connect terminal 86 of the relay to one leg of the toggle switch. Connect the other terminal of the switch to a switched 12 volt source.
posted_image

Posted By: boxerz1
Date Posted: September 29, 2009 at 5:43 PM

Is there any way to cut the 4 wires from the old switch plug to make a 2 pin toggle switch work or any way to make a dpdt toggle switch work in its place?

Posted By: boxerz1
Date Posted: September 29, 2009 at 7:37 PM

What colors are the positive and ground wires on the fan?

Posted By: i am an idiot
Date Posted: September 29, 2009 at 7:58 PM

boxerz1 wrote:

Is there any way to cut the 4 wires from the old switch plug to make a 2 pin toggle switch work or any way to make a dpdt toggle switch work in its place?

I do not understand what you are asking about the old switch plug. Yes you can use a DPDT switch.

I can't see the fan. What color are the wires on the fan?

Print Page | Close Window