Rotary phase converter: local ground or all the way to the panel?
 

On 2008-02-27, Matt Stawicki wrote:

I used 6/3 SO cable for mine. For that 70+' distance however, you
might be better off with 4/3. The SO cable might cost a little more,
but it makes for a clean installation. Unless you plan to run conduit.

SO cable is not for permanent installation, you need to use SER or UF
cable.

Wayne