•Meets NEMA Premium® efficiency •MAX GUARD® Class F insulation system •Blue Chip® quality, 100% cast iron construction for rigidity and reduced vibration •Internal and external surfaces treated with epoxy paint •Normally closed thermostats (must be connected to control circuit) •Rated 60/50 hertz, 190/380 or 380 volt at next lower horsepower •Roller bearing on shaft end for belted load only