do i need a relay?

Home / the12volt's Install Bay / Relays / do i need a relay? (

Topic Closed)

Welcome Guest :)

Members

< Prev Topic Next Topic >

superxox

Member - Posts: 12

Joined: December 30, 2003

Posted: March 21, 2004 at 12:56 AM / IP Logged

I am about to install a pair of H3 fog lights, 55W on each. I bought a switch from RadioShack, click here, which I want to use for the fog lights. This switch says it's rated 30A. My question is, since this switch is able to handle 30A, is this means I can eliminate to use a relay? and connect the power to the fog lights thru this switch?

Thanks for any help!

Cozz

Member - Posts: 9

Joined: March 16, 2004

Posted: March 21, 2004 at 9:57 AM / IP Logged

Well, yes you don't need a relay but I always hated having high current wires under the dash. I like to send a low signal to the engine bay to turn on the the relay from the battery. But whatever the choice, make it fused.

Teken

Gold - Posts: 1,492

Joined: August 04, 2002

Location: Aruba

Posted: March 21, 2004 at 5:24 PM / IP Logged

I would reiterate what Cozz has said as well. The main reasons for using the relay is to safely switch on-off a high current device with a low voltage / current device or switch.

The relay will also isolate the circuit. Having a high current power wire running through the interior vehicle requires more care and safety also.

Meaning you will have to ensure proper clearence, and grommet use, or any other tubing to provide that measure of safety.

Normally people use the ground to switch a device on-off

to initiate the turn on sequence.

Regards

EVIL Teken . . .

Sorry, you can NOT post a reply.
This topic is closed.

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

do i need a relay?

Sorry, you can NOT post a reply.This topic is closed.

Sorry, you can NOT post a reply.
This topic is closed.