Originally Posted by OldCoot
I have the same problem when I use my hair dryer. Oh, wait a minute, I use a towel.
I'm with you there, and it get's easier with each passing day.
Back on topic:
Now that you understand you can't run everything with a 30 amp service, you are going to look upon your neighbors with 50 amp RV's more enviously now. Here is copy of a previous post that explains how 50 amp is different from 30 amp, along with why RV's with 50 amp can use so many more electrical items.
Most experienced camper owners fairly understand the common 30 amp service. It's 110 volt, and you are limited to using a total 30 amps of electrical stuff in your trailer at the same time. Most have learned that you have to turn some things off in your trailer.... when using toasters, hair dryers, and other things that take a lot of electricity to power or you will trip the breaker(s).
Now with a 50 amp service, common sense says that you now have 50 amps of total power, as the name applies, versus the 30 amp previously discussed....or 20 amps more than 30 amps. (20 + 30 = 50)
Now the fun part: You have more than 50 amps total when hooked to a 50 amp service. This 50 amp service is 220 volt (2 X 110), but the service is actually split into two 110 volt sides....EACH
with 50 amps.
So, in reality you have TWO (2) fifty amp lines supplying power to your trailer....or a total of 100 amps when connected this way.....or as some voltage monitors say L1 and L2. This is over three times as much as a 30 amp service.
Because you have 100 total amps (over 3 times as much as a 30 amp), you can run all kind of electrical stuff at the same time now. 2 air-conditioners, water heaters, microwaves, toasters, hair dryers. etc. You are still going to be limited to the individual circuit breakers for each circuit/outlet. It's so much better than a 30 amp service. You can run up to 50 amps of stuff on your L1 side and then up to 50 amps of other stuff on your L2 side.
Unless you get into some higher-end RV's, nothing in your travel trailer actually uses 220 volt, but everything works off of 110 volt either on your L1 or L2 sides. This is the part that confuses a lot of people.
The sides (L1, L2) share a common 50 amp breaker and plug-in in the campground pedestal, so if there is a problem on either side, then the breaker trips....shutting down both sides. It might not be as confusing if the breaker had printed on it 50(x2).
Because RV's with 50 amp service have the ability to use over 3 times as much electricity as RV's with 30 amp service, you can understand why many campgrounds charge extra for 50 amp service sites.
When you started this forum, you asked about an adapter for using your 30 amp trailer on a 50 amp service. What this adapter does is just takes one 110 volt side of this 50 amp(x2) service, to provide power to you........and terminates the other 110 volt side inside the adapter so it doesn't provide anything. It's pretty straightforward and simple when you understand how it all works.