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Old 12-06-2014, 01:21 PM   #1
hvphotog
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50 amp service v. 30 amp

New to 5th wheeling and out Montana has 50 amp service, just curious if we hooked into 30 amp what would be the out come of that. My first guess is not to use the AC but not sure if any other negative effects to the overall electrical system would ensue.

Just curious

Thanks
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Old 12-06-2014, 01:23 PM   #2
Vet4jdc
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You can use everything in your rig including AC. Most of the time the 50 amp service is there for a second AC unit or if you are running washer/dryer.
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Old 12-06-2014, 01:59 PM   #3
JohnD
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You can run everything just not at the same time. A/C and micro together may pop a circuit. May want to run Water heater on propane. Once your combination of running appliances hit the 30 amp. draw you're done
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Old 12-06-2014, 02:05 PM   #4
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With a 30A service, there are still limitations on what you can use and not use and you will not be able to "use everything in your rig including A/C". While you cannot run two A/C's at the same time, you need to be mindful of what other high amp items that you have going at the same time. If you have, for example, the HW on electric, turn on the microwave, and plug in the toaster/coffee pot/electric frying pan, then the breaker may trip.

If you run one A/C plus the microwave, the breaker may pop having used these two items. However, don't forget about the HW heater and the converter running in the background.

With a 30A service, one still has to pay attention to just how many items you can have going at the same time.
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Old 12-06-2014, 04:06 PM   #5
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He can use everything in his rig......just not at the same time!
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Old 12-06-2014, 04:36 PM   #6
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No one has mentioned it, but you do know that you will need an adapter to plug your 50amp plug into 30amp outlet??? ..... Just checking, Hank
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Old 12-06-2014, 05:26 PM   #7
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With the proper adapter, the single 30 amp leg is split to feed the two legs that normally carry 50 amps each into your rig. You can load, by running things in your rig, either or both legs up to a combined 30 amps, but not over, or you will trip the 30 amp breaker at the pedestal. With a 30 amp service, you have up to 3,600 watts, compared to a 50 amp service, which has two 50 amp legs, where you have up to 12,000 watts of capacity. Like was said previously, run your fridge and water heater on gas only, and you can run most anything else, one at a time.
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Old 12-07-2014, 10:04 AM   #8
rmcspeterson
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We use 30 amp service all the time with no problems. Often times we have been at camps that do not offer 50 amp service. We did blow the circuit breaker one time when we had the microwave, electric fireplace, and a hair dryer running at the same time. Otherwise, all has been good.
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Old 12-07-2014, 04:19 PM   #9
hvphotog
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Decided to find a campground with 50 amp service and sites open for the time frame we are thinking of going

all good info though, thanks
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Old 12-07-2014, 09:44 PM   #10
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To be prepared, have a 30 amp adapter on hand in case you need it. 30A is certainly better than no power.
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