On Mar 16, 4:39*pm, "Lew Hodgett" wrote:
"Jim Weisgram" wrote:
I think it is a good plan, except you might consider getting a
subpanel with more expansion room, so that you don't have to go back
in a few years and increase the size of the subpanel.

Lowest cost solution is to install a 125 MLO(Main lug only) 12/24
(12-1" or 24-1/2") panel with a 2P-60A main CB kit, a 2P-50A branch
breaker for the dryer and a 2P-30A breaker for the T/S.

Feed the new sub panel from the existing 2P-50A branch
breaker(existing dryer circuit) and move the dryer wiring to the sub
panel.

I spent some time looking at the existing dryer line - the dryer plug
is a 3 prong plug, which has 2 hot wires, and one ground - but does
not have a neutral wire. So it doesn't look like I'd be able to use
this line to feed my new sub-panel. An electrician I spoke with at
work told me that this setup is common for large appliances such as
dryers - 2 hot wires, 1 ground and no common.

Now it looks like I will have to pull new wire from the main breaker
box out to the shop - this new line would have 2 hot wires, 1 common
and 1 ground. Does that sound correct? If so, then I would want to
disconnect the existing dryer line from the 50 amp breaker in the main
panel and connect the new line to that breaker.