I had an electrical question a few months ago about this, and got
several varied responses - mainly because I did not have enough
information I believe. Now I actually have something to
work with!

I have a brand new Grizzly 1023SL sitting in the basement
(almost) ready to plug in. I have a copper,10 gauge (3 wire - ground,
neutral, hot) coming from a 30 amp (unused) breaker which used to
power a water heater (now gas). Our house has 200 amp service and
is less than 20 years old (just for reference).

Grizzly recommends 20 amp/220. Do I need to change
out the 30 breaker for a 20? If I leave it as is, will I
harm the magnetic switch or anything else?

Thanks for any input.

Lou