Rated speed: 1680-1760 rpm. Insulated class: INS B MAX AMB:40 Rated current: 5.3 amp. TEFC: IC411 This AC Single-phase Geared Electric Motor specification: Rated power:375W , 550W, Rated Voltage: 110-120/60Hz, 220-240V/50Hz.Rated speed: 1680-1760 rpm.Insulated class: INS BMAX AMB:40oCRated current: 5.3 amp.Motor & gearbox:26.5Lbs.TEFC: IC411 AC Gear Motor used to cement mixer and so on.