"Ivan Vegvary" wrote:

Still working on cobbling together the best of four Craftsmen table
saws. Biggest motor I have is an old (heavy) 3 hp outboard motor on
one of the saws. I can wire it either for 220v or 110v. The only
difference I see is that I could possibly put a smaller gauge wire
into my conduit if I run 220v. I have both wire (10 & 12 awg) and 20
or 30 amp breakers. I should obviously run the heavier wire with a 30
amp breaker for future loads.

Question: Does the motor care? Is there a preference?
--------------------------------------------
Yes.

240V allows the motor at 1/2 the current req'd for 120V which
translates into 1/2 the heat loss. [Watts = I^2(R)]

Run 3, (L1,L2,N), #10AWG with 2P-30a c'kbr and make life
easy on yourself.

Lew