Mars 12005 Single Run Capacitor 5/370 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 1/2-1/6 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.