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The Dayton 3M540 is an HVAC motor designed for OEM and replacement use in air-over fan and blower applications, including bathroom fans and range hoods. Motor application: HVAC/R, motor sub application: direct door fan/blower, motor Type: shaded pole, enclosure: open air-over, duty: continuous, HP: 1/70, Nameplate RPM: 3000, voltage: 115, frame: 3.3, service factor: 1.0, full load Amps: 0.6, Hz: 60, rotation: CW, insulation: Class b, max. Ambient Temp: 40 Degrees C, number of speeds: 1, mounting: stud, bearings: sleeve, thermal protection: impedance, body dia: 3.3", shaft dia: 1/4", shaft Length: 2", Length less shaft: 3-1/16", stud location: se, phase: 1, RPM range: 1801-3000, mounting pattern: 1