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30 to 50 Amp service upgrade/conversion

bobsbbq
Explorer
Explorer
Well when we bought our latest 5ver we were pretty happy with the 15K air and the job it did during the summer. And we didn't have too many issues with tripping breakers. However when fall and winter showed up the heating situation was another story.

I found out that heating a much larger trailer was going to require additional heat. Since electricity is included we try to use as much electric heat as we can. And use the furnace for quick warm ups. This is where we started having problems with breakers tripping. We had a 1500 watt heater in the rear and a small heater in the bedroom. This was just not enough heat in the big living area where the kids sleep in bunk beds. So I happened to luck out on a clearance fireplace from PPL for 50.00 and installed it under the TV. I however could not run it on nothing but low and even then it would sometimes trip the breakers.

So I decided to take the challenge and do the upgrade. My RV was a perfect candidate as it had a separate AC and DC distribution panels. The AC panel was located in the hall going up into the bedroom and right above the storage compartment. It had a Square D QO series box but it was only a single pole. I purchased all of the box and breakers etc for 70.00. I went with a Square D Homline 100 amp panel with 6 spaces and 12 circuits.

I knew my biggest challenge was the mounting of the new panel as space was an issue.

Some things to note, I purchased the SO wire from a local electrical supply for about 20.00 I used 6/4 wire. Another thing is on the side of the trailer where my 30 amp can out, I had a locking cover. When removing this cover I had a large whole left and no way to mount the Marinco style input connector. I used a tip found on a forum and cut out a pice of cutting board to cover the hole and provide a new mounting surface.

I ordered the 50A Marinco style input from EBay for 29.99 and was very happy with the quality. Locally they are 95-130.00

For me it was easy to run the new wire from the input connector to the new panel as this was right next tomy storage compartment. This is without a doubt the hardest part in doing this upgrade.

After removing the old panel and marking the wires we got the new panel installed after som minor modifications. The other thing was the old wires were not long enough to reach inside the new load center, so some splicing was required.

I balanced the load as follows;
Bus1, Main
Bus2, Main
Bus1, Front RV
Bus1, Microwave
Bus2, Rear RV
Bus2, Water heater
Bus1, Fireplace
Bus1, AC
Bus2, Not used
Bus2, Not used

I used 2 15A double breakers and 1 20A double breaker.
I still have room for 2 more circuits.

The one thing I'm not sure of is where the convertor is tied in to. In the future I might relocate it to its own breaker.

All in all it was well worth the money and time. We can now run the 1500 watt fireplace, and the 1500 watt heater in the rear, as well as a heater in the front bedroom.

This upgrade requires knowledge of electrical wiring and should only be done by qualified people.

I hope this might help someone and feel free to contact me if you have any questions.

The old load center


The old load center removed and modifications starting to get enough room to get new load center in.


A view of the storage compartment showing the new cable running up to the new load center


The outside modifications for input connector


New load center installed and working


The Fireplace installed
5th Wheel 2002 Sunny Brook Mobile Scout 31BWFS
5 REPLIES 5

bobsbbq
Explorer
Explorer
Some of the wires were not long enough to reach up to the neutral and ground bars. So I had to add wire to them.
5th Wheel 2002 Sunny Brook Mobile Scout 31BWFS

Old-Biscuit
Explorer III
Explorer III
It's always nice to upgrade..

Why the wire nuts?
Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

Golden_HVAC
Explorer
Explorer
Great write up!

I saw a Weekend Warrior being converted from a 30 amp service to a optional 50 amp service. All they did was install a 50 amp panel in the basement storage compartment, with a 30 amp breaker feeding the factory panel inside, and a few 20 amp breakers to feed the A/C units, plugs for air compressor in the toyhouse section, and some other wiring. It went pretty well, I think the guy had installed these in several toyhouses, and finished in about 3 hours.

It is great to know that you will not be tripping any circuit breakers.

You converter is probably only a 2-3 amp load on the front circuit breaker. It might also be fed from a bathroom GFI, so if it trips, and the lights get dim, you will know for sure where it is fed from.

Have fun camping!

Fred.
Money can't buy happiness but somehow it's more comfortable to cry in a

Porsche or Country Coach!



If there's a WILL, I want to be in it!



I havn't been everywhere, but it's on my list.

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ScottG
Nomad
Nomad
Nice work and write-up!
Should work out very nice for you.

bobsbbq
Explorer
Explorer
One other thing is I was very lucky to have a friend who gave me the 50A shore power cable which saved a lot on cost.
5th Wheel 2002 Sunny Brook Mobile Scout 31BWFS