Aux. fuse box w/relay

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Forum Name: Relays
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URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=4545
Printed Date: July 14, 2025 at 2:17 PM

Topic: Aux. fuse box w/relay

Posted By: cambosoup99
Subject: Aux. fuse box w/relay
Date Posted: October 16, 2002 at 7:52 PM

I'v build an auxiliery fuse box that i will be using to power all my aftermarket accessories (alarm, fog lamps, gauges, remote trunk, etc..) I have one side that provides constant power output and one side that is ignition switched using a 30 amp relay. https://www.fortunecity.com/meltingpot/Park/29/index.htm

im worried that i may be running to much accessories on the ignition switched side of my auxiliery fuse box. Will a 30 amp relay be enough? The ignition switched side will have 4 accessories so will the constant powered side. Any suggestions ideas.

Thanks

Replies:

Posted By: brianh
Date Posted: October 18, 2002 at 8:09 PM

Your drawing of the fuse panel is a good idea. I dont think that you will have trouble with the load unless what you are hooking up on the 12v constant side draws a good bit of current. Think about it, your alarm wont be drawing power while the car is running(nothing worth mentioning) and thats when you would be using your fogs. The other stuff will be used with the car shut off and hopefully your fogs will be off as well.(ha) Give it a try and if that 30 amp fuse blows you might want to feed the higher amperage things straight from the battery to lighten the load some. Let me know how it goes. Brian H.

Posted By: cambosoup99
Date Posted: October 18, 2002 at 8:13 PM

Hey brian,

Just finished installing it on my car. So far no trouble.. seems like its working as planned. =)