The Marathon 411-GPST-14PSB is a four-poles, two-speed fan-cooled motor. It has a 1-1/2 horsepower, a 115/208-230 Volts rating, and a 1,725 RPM to 1,275 RPM speed range. It is designed for direct drive fan applications such as ventilation, humidity control, cooling, and air conditioners. The motor features Service Factor 1.0, Class B Insulation, NEMA Design B, and is ball bearing. It is UL approved, CSA certified, and has a permanently lubricated ball bearing.