I'm trying to put in a dedicated 50amp RV outlet for our TT. Unfortunately, the older home we live in has an older Walker fuse box (200 amp). I do have several circuits in the box that are currently unused and was hoping to use two of those circuits (30amp each) to wire my box outside. I went to the local hardware store to figure out what supplies that I might need and was told that I would need two 50 amp fuses to make this work and of course, they don't make them. This doesn't make sense to me, I thought a 50 amp RV plug was simply 2 separate 110v circuits rated at 25 amps each. To me, 2 50 amp circuits would provide 100 amps to the RV. What am I missing?

No, a properly wired 50 amp is 120/240 four wire. Problem with two legs of the same 120 leg can overload your neutral. RV receptacles are tow opposing legs off the electrical service rated at 50 amps each.They are wired the same as a standard 4 wire range receptacle.If yours has the old cartridge and Edison style screw in fuses, you should add a separate small breaker box wired off the main lugs.

50a home outlet 2011What is 50a service? 2007RV electric 50a websiteRV 50a wiring diagrams

Hmm...looks like I have some work to do. The house does have a 100 amp breaker subpanel in a different part of the house (newer addition). It does have a physical opening for a double pole breaker, but does that mean that it actually has room for the extra power demand? If not, how do I tell?Also, it's an additional 50 feet or so away from the location of the RV, would it still be better to add an additional subpanel closer to the original fuse box or just use the one in the back of the house? Thanks, as you can tell, I'm a newb when it comes to wiring.

yes, you can easily make a dual 30 amp outlet that will work just fine. as advised previously 50 amp is really dual 50 amp.bumpy

No, you cannot use circuits that do not have the legs tripping at the same time. The breakers must be tied together, the fuse must have a single pull for both legs as in OPs cartridge style fuses.You can add to the existing fuse box with a small breaker panel adjacent to it. It should be connected to the output side of the main fuse assembly.

Wiring 50 amp RV Outlet to Fuse Box? | Good Sam Community

TrekkerB
Explorer
Apr 23, 2016
Hmm...looks like I have some work to do. The house does have a 100 amp breaker subpanel in a different part of the house (newer addition). It does have a physical opening for a double pole breaker, but does that mean that it actually has room for the extra power demand? If not, how do I tell?

Also, it's an additional 50 feet or so away from the location of the RV, would it still be better to add an additional subpanel closer to the original fuse box or just use the one in the back of the house? Thanks, as you can tell, I'm a newb when it comes to wiring.
2oldman
Explorer II
Apr 23, 2016
50a home outlet 2011
What is 50a service? 2007
RV electric 50a website
RV 50a wiring diagrams
enblethen
Nomad
Apr 23, 2016
No, a properly wired 50 amp is 120/240 four wire.
Problem with two legs of the same 120 leg can overload your neutral.
RV receptacles are tow opposing legs off the electrical service rated at 50 amps each.
They are wired the same as a standard 4 wire range receptacle.
If yours has the old cartridge and Edison style screw in fuses, you should add a separate small breaker box wired off the main lugs.

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Wiring 50 amp RV Outlet to Fuse Box?

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