After further review, i was wrong. Its totally 3 phase
110V 3 phase is unusual. I'd guess that to run it from 110/120V, you would run it in delta. Wye would then be for 208V (much more common in 3-phase.)
Odd that there are fields on the motor nameplate for frequency range, etc. but no numbers. I'd guess that indicates it's meant for 60 Hz only. It's fan cooled I assume?
Double post