Actually the two plugs are different. The 50 amp is a 4 prong and the 30 amp is a 3 prong plug.
The 30 amp plug has a hot line, a neutral, and a ground.
The 50 amp plug has 2 hots, one neutral and one ground. The two hots = 220v but are seperated into 2 branches at the converter both being 110 to neutral.
There are plug adapters that go either way (30 amp to 50 amp plug in and vice versa). Always best to use the plug in that your trailer is made for if possible.
The 50 amp plug is 220v split into two 110v legs at the plug. There are no 220v appliances in your trailer. The converter is 110v. See if the link below helps explain it better.
So a 50 amp service is 220 and the converter in the camper takes care of it???
Actually, the converter is just another 110v appliance hooked up to the power distribution panel ( even if the converter and panel are a single unit). 50 amp service in an RV is wired just like in your home with two 110v legs. The only thing missing is a 220v appliance and a two pole breaker to service it.
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Larry Day
Texas Baptist Men-Retiree Builders member since '01
13 Silverado 3500HD D/A, 2wd CCSB srw, custom RKI bed
11 Cruiser CF32MK https://www.picturetrail.com/dayle1
Bottom line is everything in your camper is 110V (and/or 12V) dispite the number of amps that may be required to run all of your appliances. Typically 50 amp is for a unit with 2 AC's while 30 amp is used if the unit has only one AC.
Having had a cruiser 30sk with 30 amp and now a 30sk Patriot with 50 amp, i really like the 50 amp. No worries about what you turn on. Plenty of power available for all your appliances. The only change I made was Crossroads wires both the front outlets and the rear outlets on the same 110 v. leg. Since I don't have the front a/c, I moved the front outlets to the other 110 v. leg that is set up for front a/c. This balances the load better on the two legs.
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Dale & Carol
Bradley, Il
2007 F-250
2010 CF30SK Patriot
2007 CF30SK
Linear Mode
