Remote Turn On Fuses

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=81093
Printed Date: July 02, 2025 at 5:25 AM

Topic: Remote Turn On Fuses

Posted By: crono61
Subject: Remote Turn On Fuses
Date Posted: August 02, 2006 at 8:29 AM

would i really need to fuse all of the output wires in a setup like https://www.the12volt.com/relays/page5.asp #5? or would just the one fuse from the 12v source be sufficient?

Replies:

Posted By: oscarnl86
Date Posted: August 02, 2006 at 10:26 AM

just to be safe fuse both the 12v source and the output. you dont realy need to fuse the output but like i said you might wana do it just to be safe

Posted By: supersix4
Date Posted: August 02, 2006 at 10:43 AM

Each device you run off that relay should be fused, just like the diagram shows.

Protect your gear & vehicle. Fuses are cheeeeeeeep insurance, man. Consider this ... suppose you are running a few fans, like the diagram shows. One fan fails - dead short. If the only fuse in place is the one supplying the relay on the 87 leg, then EVERTHING else dies too - all the other fans. Now your amp overheats & it starts to act up & eventually dies as well ... maybe even sets your car on fire! All because a silly fuse was not put in place.

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Posted By: crono61
Date Posted: August 02, 2006 at 1:04 PM

good advice...thanks guys