The Synchronous Motor/Generator is designed so that each phase of the stator windings of this machine is independently terminated and identified on the faceplate, allowing operation in either delta or star (wye) configuration. The rotor of this machine is equipped with a squirrel-cage damper and salient pole windings in order for the machine to exhibit the same properties as industrial high-power synchronous machines. Variable dc excitation to the salient pole windings is fed through the externally mounted slip rings and brushes which are pre-wired to a rheostat and control switch mounted on the faceplate. This machine can also be operated either as a three-phase synchronous motor or as a three-phase synchronous generator (or condenser).

The motor is supplied with a silk-screened faceplate showing the motor connections and a twelve-pin connector to fit with the Motor Terminal Module, Model 3171-2.