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Old 06-20-2018, 03:12 PM   #1
Join Date: May 2018
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30 amp into 15 amp

New to rving. My trailer is a 30 amp. If I camp at a site that has 15 amp, can I still hook up? Will it power my a/c which is 13,500 btu?
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Old 06-20-2018, 03:22 PM   #2
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Running on 15A.

It might but u won't be able to run much of anything else that 120V.
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Old 06-20-2018, 04:20 PM   #3
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I have run my ac off my 15 amp garage outlet. I do not like doing it, and have not done it for long periods.

Every electric campsite I have seen, have at minimum a traditional 20 amp and 30 amp 120 volt outlet. Sometimes there is in addition of a 50 amp 240 volt oultlet.

All summer at home I am plugged into a 20 amp outlet.

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Old 06-20-2018, 04:34 PM   #4
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I hook up to 15 amp at home all the time when the TT is parked, you can get adapters at Walmart for low cost that are good quality. I run our fridge and keep our battery charged when our TT is sitting home. On a real hot day, I can run the A/C on low cool and it's fine. It will trip if I try to run A/C on high.
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Old 06-20-2018, 05:06 PM   #5
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My AC runs on 15 amp just fine as long as I ha e no other large loads on at the same time. Had my exterior fridge trying to cool full blast with the AC, and it tripped the breaker at my in-laws place. Was through a 100' cord too, which doesn't help.
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Old 06-20-2018, 05:17 PM   #6
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Every time I plugged my old ceiling AC (13,500 btu) into the house 15 amp outlet it blew the breaker after a few minutes. The reason you have a 30 amp cord is because you may need 30 to run everything!

I now have a 2017 195RB with a 5,000 btu window AC that runs fine.

I have a little plug in voltage detector that show a 120 volt to 117 volt drop when the AC compressor is running.

It varies by AC unit what the lowest recommended voltage is allowed before potential damage.
IF I saw below 110 volts I would run an AC on it.
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Old 06-20-2018, 06:20 PM   #7
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Just make sure you are not starving your A/C for voltage or could after some time damage your unit.
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Old 06-20-2018, 06:26 PM   #8
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If you are plugging into an outlet in your garage and the house was built in the last 30 years most likely your garage plug should be 20amp if the electrical code was followed, check the breakers
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Old 06-20-2018, 06:43 PM   #9
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Like others have said, you can, but....

To help the system, put both your fridge and water heater on gas. If either of those is running when the AC is on, that definitely will trip the breaker.
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Old 06-20-2018, 06:51 PM   #10
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You can, but I recommend using the largest AWG (wire size) cord possible. 10 AWG is most ideal, 12 AWG is acceptable as well using shortest cord possible. These are key to not only prevent damage to power cord but also not "starve the A\C of power". Keep in mind of things that receive power that you don't normally think of like your converter that is powering lights and charging the battery. They may cause you to trip a breaker, if you can go without charging battery you turn off breaker to converter at the service panel to save some amperage.
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