The Manual DC Motor Starter module is designed to start the DC Motor/Generator, Model 8501, from a dc power source. The module consists of a manually operated handle, variable-resistance starter. It can be wired as either a 3-or 4-point dc motor starter. When the motor starter is in the full run position, an electromagnet holds the handle in place. If loss of field occurs while the starter is connected in 3-point mode, the holding electromagnet is de-energized and a spring returns the starting handle to the off position. Connections are made through 4 mm color-coded jacks.