"This LEESON 115V split-phase motor is designed for commercial duty air over fan motors for air circulators. UL recognized/CSA certified. Resilient Base Yes, Volts 115, HP 1/4, CSA Yes, Open Drip Proof Housing Yes, Hertz 60, Auto Overload Protection Yes, Rotation Direction Clockwise or counter clockwise, Motor Phases Split, Amps 5 @ 115V, Shank Diameter in. 1/2, UL Yes, Frame Type NEMA 48Z, Rated RPM 1,725. Automatic reset protector 1/2 in. dia. shaft with flat includes sleeve kit to convert to 5/8 in. shaft with keyway Service factor 1.35"