Can I use my 220 volt outlet ( air conditioner use ) to a 110 usage
with an adapter of some sort? Seems a waste for its only use is for
the AC which is used sparingly, usually during extreme heat waves.
If the 220v outlet has a neutral and a ground (with the two hots),
I've heard of people using a 220v appliance cord with two 110v outlets
at the end. Each 110v outlet is connected to one of the hots and the
neutral with the ground serving both the 120 outlets.
I don't know if it's code legal or not.
I got a doer I bought at a camping store. One end has a plug for 220
and the other end has a double duplex outlet. The one I bought at the
camp store was like a short extension cord about a foot long. I took
it apart to see how it was made(already had a pretty good idea that it
was a shared neutral circuit) and rebuilt it with a 50ft camper
extension cable. We use it for power 120 distribution when tent
camping, usually have about 4 or 5 tents set up. I suspect you could
use the same type thing to make an adapter as long as you have a good
neutral in the circuit.
Impossible to say without knowing a bit more. Does it have a white
neutral in the box? If so it is POSSIBLE - and possibly even in a code
IF it has a neutral, you can, I believe, plug a 220 volt plug into it
with 2 20 amp receptacles connected in an approved box. (assuming it
is 220 20 amp).
No neutral? No dice.
On 12/11/2010 4:26 PM, firstname.lastname@example.org wrote:
Campers often come with a 240VAC plug. In a campground were 240VAC
isn't available, they use a 3 prong plug in adapter that only uses one
side of the 240 and plug it into a 120VAC outlet. Hmmm, or is it the
other way around? Anyway, I doubt if it's legal inside a building.
Campers don't come 220, as a rule. They come 20 amp. If a 20 is not
available there is an adapter to plug it into a 15 amp outlet. There
are also adapters to plug a 15 amp camper into a 20 amp outlet. I have
both, which allows me to use my heavy 20 amp extention cord on a 15
amp circuit, and plug in 15 amp devices.
Sure, you just need a transformer.
Americans whose employer sends them to Europe, for example military
families, take their own electrical appliances and run them on
European 220 by plugging in a 220 to 110 transformer. Any military
thrift shop will have a shelf of them.
Clocks don't work because they rely on 60 Hz, but pretty much
everything else does.
A "typical" 220 volt AC outlet is 2 wires plus ground. No adaptor can make
that useful and safe for 120 volt appliances. (Other posters have made this
The halls of a high rise condo I own have 120/208 outlets (they use the same
connectors as 120/240). But most of the equipment used by the cleaning
staff is just 120 volt stuff. They use a made up adaptor that safely
"taps" one side of the circuit. The "next time" you install an A/C outlet
you might consider running a 3 wire + ground cable.
If you are handy, you might consider seasonally re-wiring the outlet.
During the cooling season, put in the 240 volt (2 wire + ground) and at the
break box connect it to a two pole breaker.
The rest of the year, change the break box wiring so that one wire is
connected to neutral and the other is still connected to one pole of your
two pole breaker (IOW: don't get another breaker.) You change out the 240
volt outlet for a 120 volt outlet.
It's almost certain that the cable contains one black, one white, and one
green/bare conductor. When wired for 240 volts, the white becomes hot.
When wired for 120 volt use, the while becomes neutral. You might was to
splice on flexible "pigtails" to make the seasonal transition easier on the
solid wires. (I don't know if they are still available, but I have some
flexible pigtails that have a lug on the wire end and the other end is a
wirenut. They come in white, green, and black.)
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