The AC Power Supply (single-side) is designed to supply electrical power to equipment in the Industrial Controls Training Systems in combination with the Double-Rail Tabletop Workstation, Model 3105-C. The AC Power Supply requires three-phase ac power for operation. A five-prong male-plug, mains power cable is used to connect the AC Power Supply to a three-phase ac power outlet. A three-phase circuit breaker is located on the front panel of the power supply to turn the power on and off and provide overcurrent protection.