Anybody know how to hook up a relay (SOLVED)

Topic: Anybody know how to hook up a relay (SOLVED) (Read 946 times) previous topic - next topic

Anybody know how to hook up a relay (SOLVED)

September 03, 2010, 07:57:53 PM

...as in the generic kind you get at AZ?

I know what the purpose of relays are, and how they work, I just habe no idea what to hook where

Anybody know how to hook up a relay (SOLVED)

Reply #1 – September 03, 2010, 08:17:27 PM

What exactly are you trying to hook up ?

I can probably find you a picture diagram if I know what for

Anybody know how to hook up a relay (SOLVED)

Reply #2 – September 03, 2010, 08:47:03 PM

Well, I want to hook up my e-fan. I plan on running the main power straight from the battery, with an in-line fuse, but I don't want it to run constantly, which it will do if hooked to the battery. So, I plan on using the relay to have the ignition circuit turn it on.

I googled it and finally figured it out. For anyones future information:

There are 4 pins on the relay. These can be connected with 1/4"(.250") female quick connect terminals.

The terminals on the relay are numbered: 30, 85, 86, 87. This is what they connect to:

1. 12v+ Signal in(alt. out, ignition, etc) (86)
2. 12+ in(from battery) (30)
3. 12+ out(to fan, etc) (87)
4. Ground (85)

Anybody know how to hook up a relay (SOLVED)

Reply #3 – September 03, 2010, 09:19:22 PM

Glad you got it figured out :D

Anybody know how to hook up a relay (SOLVED)

Reply #4 – September 03, 2010, 10:29:29 PM

I was about to post up the diagram for you-I have a suggestion(only my opinion). I think you should get an adjustable fan control setup-theyre about $60. I know the relay is easier and cheaper but an electric fan is not meant to be run all the time-you'll shorten the motors life. With the fan controller setup the fan would only come on when the car reached a set temp. Just something to think about.

Anybody know how to hook up a relay (SOLVED)

Reply #5 – September 03, 2010, 11:21:28 PM

I already have one of those. Its just a thermostat though, it didn't come witha built in relay.