I dug up the phase-a-matic phase converter that came with the machine. It says it runs 220v 3pahse motors on 220v single phase power. hp range 3/4hp min, 1&1/2hp max. single phase full load amps 5.2 I guess that answers the question of what the motor is wired for phase and volt wise. Gets me close on amps too. I still hope to know a little more before making a purchase.