Rotating an electric motor shaft in the wrong direction can cause severe mechanical damage to expensive machinery. The Model 108C Motor Rotation Indicator can quickly show shaft rotation direction, thus becoming a valuable addition to your shop equipment. Designed of the installation of conveyer lines, pump systems and interconnected drives, the Model 108C requires only a few seconds to determine the proper connections to be made. The three leads are color coded: Red=phase A, Black=phase B, and White=phase C. This small device will allow you to connect all motors to run the proper direction.