Mars 12008 single run capacitor 10/370 oval. For the last 50 years Mars has been an operated supplier of quality motors, components, and service/installation parts for the HVAC industry. Mars distributes its own aftermarket replacement products, as well as the original equipment components of leading manufacturers. This 10/370 hp direct drive single run capacitor is an electrical capacitor that can change the current to one winding of an electric motor to create a rotating magnetic field. This motor is a multi-horsepower capacitor and speed tap configuration.