100 hp, TEFC Enclosure, No Thermal Protection, 1,185 RPM, 575 Volt, 60 Hz, Three Phase Premium Efficient Motor US Motors 100 hp, TEFC Enclosure, No Thermal Protection, 1,185 RPM, 575 Volt, 60 Hz, Three Phase Premium Efficient Motor - Size 444 Frame, Rigid Mount, 1 Speed, Ball Bearings, 99 Full Load Amps, F Class Insulation, Reversible