Upfitter question
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Junior User
Joined: Nov 2020
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Upfitter question
For installing things on the upfitters that require a smaller fuse than what is currently on the upfitters, can you simply just replace the 25 amp fuse with a 15 amp? Or do you just add an inline fuse after the connection to the upfitter?
Laughing Gas
Joined: Feb 2017
Posts: 996
Likes: 193
From: AZ
Neither; the fuse isn’t an issue when drawing lower amperage power
Lead Driver
Joined: Nov 2005
Posts: 8,477
Likes: 4,969
Sure it is, you still have to protect whatever component you hook up to the upfitter switch.
So, yes, I would definitely just add an inline fuse of whatever capacity required to protect the component you add.
So, yes, I would definitely just add an inline fuse of whatever capacity required to protect the component you add.
Lead Driver
Joined: Feb 2011
Posts: 6,676
Likes: 913
From: Milford, MI
If the op is installing an accessorie that risks a "thermal incident" if the full rated amperage of the upfitter go thru it, either the fuse needs to be changed or a second fuse of appropriate amperage needs to be installed. The fuse Ford puts on the upfitter is what they designed the circuit to handle, but no reason it can't be lower, since they have nothing on said circuit.
Laughing Gas
Joined: Oct 2018
Posts: 767
Likes: 78
From: NC
and change the marking, to clear up confusion later if it needs to be changed? Or would it be cleaner to install a smaller rated fuse inline between the device?
Mountain Pass
Joined: Jun 2020
Posts: 248
Likes: 40
From: Texas
It won't hurt a thing to drop fuse sizes to match the connected load, its actually a pretty good idea to do so. It could possibly help prevent an overload from becoming a fire.
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Fleet Mechanic
Joined: Feb 2018
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Originally Posted by 2019er;[url=tel:19823522
19823522[/url]]and change the marking, to clear up confusion later if it needs to be changed? Or would it be cleaner to install a smaller rated fuse inline between the device?
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The PTO is nowhere near enough. He'll probably need to install a Mr Fusion reactor for the necessary 1.21 gigawatts.
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conchsally
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Jul 3, 2004 06:53 AM