Running 1 ac unit on 20 amp shore power,

[etrippe]

I have a dedicated 20 amp circuit next to where I park my MH when loading and unloading for trips. If only some 12 volt lights, but no frig or water heater on electric were running in the mh, could I run 1 of the roof top ac’ units? Both units are on single 20 amp breakers in the MH and one is 15,000 btu and one is 13,500 btu
.
Thanks in advance

Additional info

I have a 30 amp extension cord with an adapter to 20 amp that I could use.

[road-runner]

MitchF150 wrote:
Best to check your voltage when plugged into whatever configuration you have and go from there...

If you plug in and then turn on the AC get a volt meter and plug into any other 120v outlet in the rig and read it's voltage output..

If it's much below 108v, then you might need to consider some other power source, but for a short time, and if it does not trip the 20a breaker then you are probably "ok"...

No way to say for sure one way or the other, but you can also feel the cords and if they are really warm to the touch, then maybe you are drawing too much...

Good luck!

Mitch

This answer gets my vote as the best. I check the voltage inside the rig, and it works out ok for me.

[rk911]

and what difference does using an adapter make? if the OP draws more than ~80% of 20-amps (16-mps) the CB will pop.

[Lwiddis]

Short and 10 gauge, 2oldman.

[Cummins12V98]

Yup no problemo.

[Dirtclods]

You'll be fine I'm plugged in at home on a 20 amp as you said you Have your ~ 30 amp extension cord with an adapter to 20 amp .


https://www.amazon.com/Yellow-Jacket-2991-Generator-T-Blade/dp/B000HEC2DW/ref=sr_1_3?crid=3Q3RDKR86U...




https://www.amazon.com/Camco-PowerGrip-Adapter-Contoured-55223/dp/B00192JGA8/ref=sxbs_sxwds-stvp?key...


And if you worried about a fuse you can just use a power strip it'll do the same thing.

[MitchF150]

Best to check your voltage when plugged into whatever configuration you have and go from there...

If you plug in and then turn on the AC get a volt meter and plug into any other 120v outlet in the rig and read it's voltage output..

If it's much below 108v, then you might need to consider some other power source, but for a short time, and if it does not trip the 20a breaker then you are probably "ok"...

No way to say for sure one way or the other, but you can also feel the cords and if they are really warm to the touch, then maybe you are drawing too much...

Good luck!

Mitch

[midnightsadie]

I run mine that way all the time even use the lights.

[ford_truck_guy]

A few years ago were driveway camped up in cape cod at a friends house. They had a dedicated 20 amp outlet that I used. I just ran my 50 amo cable to the outlet and used a 50 to 30 reducer which I plugged into a 30 to 110 plug... no regular extension cords and it worked all weekend... all the lights, and 1 AC

[rk911]

etrippe wrote:

rk911 wrote:
be sure to turn off the charger portion of the charger/converter else it trips your circuit. i know from experience.

How do I do that?

should be a circuit breaker on the charger/converter.

[wildtoad]

I was just at a friends place and the had a 20 amp socket. I had one of those puck adapters that allowed the 30 cord to plug in. We have one 15k ac, ran wh on gas ( only option ), fridge on gas, did use a Keurig in the am. Would run mw when ac was not. All went well. However when we went to leave the adapter was warm and somewhat melted. So be careful.

[etrippe]

rk911 wrote:
be sure to turn off the charger portion of the charger/converter else it trips your circuit. i know from experience.

How do I do that?

[rk911]

be sure to turn off the charger portion of the charger/converter else it trips your circuit. i know from experience.

[2oldman]

I think you'll need a 10awg extension cord.

[etrippe]

Yes. It too is rated for 20 amp.

[Lwiddis]

With a short extension cord and nothing else drawing power except led lights, yes.