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Adding a circuit to distribution panel

Kach
Explorer
Explorer
Well shortly after getting this all sorted in our last travel trailer, we just upgraded to a new to us Keystone Sprinter Campfire 5th wheel. While it’s pretty close to perfect for our needs, it unfortunately did not come with a single 12v or USB outlet!

There is a nice shelf under the TV which happens to be right above the fuse box with pretty easy routing through the cabinet. My plan is to make this shelf a “charging center” for topping up our devices while camping.

Correct me if I’m wrong but it looks fairly simple - hot goes to the empty space on the fuse panel and ground to the ground block. I’m planning on 2-3 USB outlets (3a) with one of which also having the built in voltmeter since I don’t have one on this rig.

Would a 15a fuse be sufficient?

Any other considerations or ideas while I’m in there?
6 REPLIES 6

enblethen
Nomad
Nomad
I believe the OP wants a 12 volt DC USB port setup or at least that is the way I read it.

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker

Kach
Explorer
Explorer
I’ll probably use #12 or 14 (or better depending on what I have on hand). I’m assuming I shouldn’t need an inline fuse if I’m wiring back to a fused circuit.

I’m talking about just 12v system here - I want to be able to use the outlets for dry camping when we don’t have hookups.

QCMan
Nomad III
Nomad III
Why not just change the outlets for ones with usb ports?

2020 Keystone Cougar 22RBS, Ram 1500, two Jacks and plenty of time to roam!
The difference between genius and stupidity is that genius has its limits. A.E.
Good Sam Life Member

enblethen
Nomad
Nomad
In OP's case he should be running at least 14 wire and in his case many USB outlets do not have fuses they are an inline. Weak spot in the system is the outlet. I installed marine style two USB receptacle that are each rated five amps.

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker

time2roll
Nomad
Nomad
Fuse is to protect the wire. What size wire?
Unless you are going smaller than #16 the 15 amp is fine.

enblethen
Nomad
Nomad
15 amp is plenty for three USB ports. It could be almost too much.

Bud
USAF Retired
Pace Arrow


2003 Chev Ice Road Tracker