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Old 05-22-2015, 01:23 PM   #11
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One other thing I have ran into is if you are running the AC you cannot run the microwave without tripping the 30 Amp breaker.
You can run the microwave and 1 A/C at the same time as long as other high load items like the fridge and/or water heater aren't on. MW and A/C will pull somewhere around 22-26 amps together, typically. If you have standard light bulbs and are running a lot of lights, it is possible to go over 30A as well. Not a big concern with LED's.
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Old 05-22-2015, 01:42 PM   #12
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We have never had a 50A trailer & can run 1 AC with everything else...... But when & where are you camping..... If it is now or soon you may not need two ACs anyway.....

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Old 05-22-2015, 02:41 PM   #13
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We have never had a 50A trailer & can run 1 AC with everything else...... But when & where are you camping..... If it is now or soon you may not need two ACs anyway.....


That's funny. When we are on 30A I have to watch my wife like a hawk to keep her from tripping the breaker. When you've got 1 A/C going and then try to throw a mix of microwave/coffee maker/crock pot/hair straightener/hair dryer/etc. it tends to go over 30A real quick. We have issues in colder weather, too, when trying to run electric heat. True about the 2 A/C's not being needed. Middle of May in TX and it's in the 60's. Still weather!!!!
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Old 05-22-2015, 02:43 PM   #14
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Oh wait, it's been raining for like 60 days straight so a campfire is out.
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Old 05-28-2015, 09:14 AM   #15
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One other thing I have ran into is if you are running the AC you cannot run the microwave without tripping the 30 Amp breaker.
Agreed. I have to turn off the AC to run the microwave and then when the food is done, I turn the AC back on. Hairdryers are another no-no when you are on 30 amp unless you turn off everything else.

I don't believe you will have any success running both ACs on 30 amp service or at least I never did. Also be careful, you don't want to try running both your both ACs at the risk doing damage to one or both of the compressors from low amperage. If the ACs seem to shut down and restart continually, you may have a low amperage condition. Shut one off and see if that clears up the frequent restarts.

As for the cheater cords... it depends on the phasing of the circuits. 50 amp uses two phases; 30 and 20 amp, one phase. if the post is wired with both the 30 and 20 amp using the same phase I don't think it will work. If they have used different phases for the 30 and 20 you might have some success with the cheater cord. The caveat is that if the post only has a 30 and 20 they are probably both running off the same phase.

Maybe one of the electrical engineers on the board can confirm or clarify.

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Old 05-28-2015, 09:33 AM   #16
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When I am running on 30 amps yes on one a/c, microwave, 2 small refrigs, and the trailer frig. No on the electric for the water heater and the wife's hair dryer and curling iron...lol
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