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Old 09-12-2016, 11:51 AM   #1
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30A vs 50A

What am I giving up if I can only find shore power of 30A?
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Old 09-12-2016, 12:06 PM   #2
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What am I giving up if I can only find shore power of 30A?
Simultaneous use of a 2nd AC and maybe microwave. And maybe if DW wants to use the air dryer at the same time as the AC. i.e. it's not a big deal. Just know the few limitations.
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Old 09-12-2016, 08:09 PM   #3
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Not much since the weather is starting to cool down. But as others have said the use of both AC's at the same time and or the microwave and the AC or the hair dryer and the microwave and the AC. Oh yeah don't forget about the Electric Water Heater, switch that to Gas. If you have an EMS it will load shed to help cover things until the wife fires up the hair dryer.
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Old 09-12-2016, 08:15 PM   #4
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30 amp = 3,600 watts @ 120 V
50 amp = 12,000 watts @ 120 V

My rig has a 240 volt dryer, some also have 240 V cooktops.
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Old 09-12-2016, 08:29 PM   #5
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We can typically operate two air conditioners on 30a service. Turn off or reduce the charge rate of the battery charger. Drop one air conditioner while operating microwave, hair dryer, blender, etc.
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Old 09-16-2016, 03:54 AM   #6
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Lots of RVs operate on a thirty amp supply. It's not hard if you only use one AC.

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Old 09-16-2016, 03:59 AM   #7
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Same here except didn't need to turn down charger.
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We can typically operate two air conditioners on 30a service. Turn off or reduce the charge rate of the battery charger. Drop one air conditioner while operating microwave, hair dryer, blender, etc.
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Old 09-16-2016, 08:59 AM   #8
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What am I giving up if I can only find shore power of 30A?
You are giving up 20 AMP's?
And probably in a older campground with shorter sites.
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Old 09-16-2016, 10:18 AM   #9
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For quite a few years Winnebago has used an energy management load shedding system that allows two ACs to be used at the same time on 30 amps. It will not allow both to start up at exactly the same instant. If you want to use a high current device like a microwave it will shut down the rear AC fan then the rear AC compressor then the refrigerator, That is the shedding order on my Sightseer. It might be different on other models that have options like an electric/propane water heater.
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Old 09-16-2016, 10:31 AM   #10
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What am I giving up if I can only find shore power of 30A?
wdweldon
You have to learn to live with 70A less electric because 50A pedestal receptacles provide 2 50A legs/lines of 120VACA electric... (a total of 100A).
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Old 09-16-2016, 11:30 AM   #11
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For the most part unless it's really hot and you need two AC's you won't even notice it. When we stay at CG's that only have 30 amp, we have no problem using our Fridge, Electric Water heater or other misc appliances. We have the Energy Management System which will keep it from overloading, but you can easily see how many amps are being used and turn things off if needed. When it's hot we only use one AC, and when cold at night we only use one heat pump or the electric fireplace.
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Old 09-17-2016, 06:20 AM   #12
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You are giving up 20 AMP's?
And probably in a older campground with shorter sites.
No, he's giving up 70 amps.

1 leg at 30 amps vs 2 legs at 50 amps each.
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Old 09-18-2016, 04:30 AM   #13
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No, he's giving up 70 amps.

1 leg at 30 amps vs 2 legs at 50 amps each.
Then why don't they call it a 100 AMP hook up?
If 100 AMP is what you get.
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Old 09-18-2016, 05:55 AM   #14
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70Chevelle is correct. It's 50A per leg. Your 30A system is 30A per leg, but you only have one leg. The 50A system has two legs, but it still is 50A per leg.
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