The Grainger 170FH0 is a 1/4 HP, 115V, 60Hz, 1-phase, totally enclosed fan cooled (TEFC) electric motor. It has a 48 frame size, measures 5-1/2" long, 4-1/2" wide, and 5-1/4" high. The motor operates at 1725 RPM with a 1/4" diameter shaft and has a Class B insulation. It is thermally protected and reversible. The motor is CSA certified and UL listed. With its compact size, totally enclosed design, and thermal protection, this electric motor is well suited for use in industrial equipment and machinery.