The contractor building my new workshop has asked
what kind of 220 outlets do I want. Anyone have
had similiar experiences - what did you chose? Is
there a specific model type I should tell him?
I've seen the twist lock types and the straight
plugs like for a dryer, but are there others?
A less official, but more convenient reference is
and I agree with the other poster who said a 6-20R is probably the way
to go. Most 220V equipment that you're likely to buy for a home shop
comes with a 6-15P or (less likely) 6-20P, either of which will plug
into a 6-20R.
You could go the twist-lock route, but my personal opinion is it's more
trouble than it's worth to change all the plugs.
Worked for Ontario Power Generation for over 25 years and they changed all
their field wiring to twist lock type plugs for safety reasons, they will
not accidently pull out. If your equipment comes with the flat type you
can get adaptors or do as I did and cut them off and put twist lock on.
I agree. I would go with twist-locks all the way. Replace any
non twist-lock plugs on any equipment, though most equipment in
that category comes without a plug, so you get to choose anyway.
MJ, I would suggest a 20 amp 3wire twist lock, these will be fine for most
of your machines.
When I built my shop, I put them where each machine was or going to be
located as well as a few extra for good measure. You can always change them
out should the need arise. I you have and welding machines, electric dryer
or heater, a higher rating (check label on machine) may be required.
You will have to change the cord cap (plug) on your machines but you won't
regret it. If money is tight, do not put them in at all. Just have the
electrician pull the wire and put a flat cover on the future boxes. This
way you can add them as needed.
Here is a sample
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Good point, Greg. I put in the receptacles you suggested but forgot about
their flexibility. Many 220v only tools come with 15A plugs and these
receptacles accept them. I believe that he must have #12 or bigger wire to
use the 20 amp receptacles. Hopefully that's what his electrician pulled.
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