3000 RPM, .41 amps, 115 Volts 60hz. Bathroom exhaust fan replacement: 50CFM Shaft = 3/16" x 1 1/2", Power cord length = 6" with 2-prong plug Continuous duty, Air Over Kit contains: 1 x motor, 1 x fan = 4.5 (flat/paddle style) Mounting studs 1 7/8" on center Fan kit is designed to replace most repair projects. Replacement for motors Nutone Broan, Uppco, Ventorola E498-1, Bay Motors, Sears 569, Dayton and many other units. Note: the brand and any related models mentioned above is only for compatibility. Suggested replacement for Marley 3900-2059-000, Century C01575