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Old 11-09-2014, 10:25 PM   #1
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50 amp vs 30 amp service questions

If the 50 amp service has 2 hot 50 amp legs do they service 2 different sides of the panel. Meaning is one leg powering one side on the panel and the other leg servicing the other side of the panel.
If this is so what happens when you use an adapter and plug our 50 amp rig into a 30 amp recepticle? Does it only power one side of the fuse panel? If so how do you know which side and will it be the side with the transformer?
I realize this is RVing 101 but I must have missed this lesson.
Thanks for your answers.
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Old 11-09-2014, 10:31 PM   #2
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You're correct on the 50 amp service but when you use a 30 to 50 adapter, they tie the two 50 amp hot leads together. So you now have only 30 amps (feeding both sides of the panel) for the entire RW vs 50 amps for each leg. Thus the reason you must use power management skills to keep from triping the 30 amp breaker on the pole.
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Old 11-09-2014, 11:17 PM   #3
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Yep - just like she says

By the time you deduct the converter and some of the other "always" on stuff, it's amazing how short the 30A falls compared to the "100a" available in the 50A hookup.
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Old 11-09-2014, 11:50 PM   #4
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We've actually ran into some 50 amp campgrounds where there is only 1-50 amp breaker (yesterday at Natchez Trace state park for example). I assume that you get a total of 50 amps on both legs of your redwood, same as the 30 amp adapter would give you 30 amps total on both sides.
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Old 11-10-2014, 12:00 AM   #5
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My real question was answered, when you use a 50 amp to 30 amp adapter the 30 amp line now feeds both side of the service panel. Realizing you have a power management issue, but as long as the converter is powered my question was answered and of course a hair blower and make up mirror LOL
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Old 11-10-2014, 12:22 AM   #6
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It's amazing how many amps you "really need". In Mexico with our older Titanium we stopped in some in some campgrounds with less than 15 amp service, I measured the draw using a clamp on ammeter at about 4 amps (running the water heater and fridge on gas) using lights and running sat internet and TV.

Unless you need A/C, you can easily run on 15 amp service with power management.
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Old 11-10-2014, 12:22 AM   #7
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Quote:
Originally Posted by almcc View Post
We've actually ran into some 50 amp campgrounds where there is only 1-50 amp breaker (yesterday at Natchez Trace state park for example). I assume that you get a total of 50 amps on both legs of your redwood, same as the 30 amp adapter would give you 30 amps total on both sides.
(wow - that's bizarre! I've never seen that)

Anyone know what the plug looks like on the new 100A sites (cater to MHs)?
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Old 11-10-2014, 12:38 AM   #8
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I have been in camp sites with a 50 amp plug and and one breaker. All you are getting is 50 amp shared same as 30 amp is shared on both legs of the panel....Ian
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Old 11-10-2014, 11:37 PM   #9
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The 50 amp breaker should be a 2 pole, therefore 50 amps an each hot leg.
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Old 11-10-2014, 11:51 PM   #10
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You can find some pretty weird hookups in campgrounds. Stayed in one recently that had 50 amps, but was supplied by two seperate 50 amp breakers vs the normal that are tied together. So at that campground it could be possible to trip one breaker and loose one side of the RW power panel.
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