Power Supply - AC Single Phase: Unit Type - Ferro-Resonant UPS; Rating VA - 3100VA; Rating - Watts - 2200W; Input Volts - 120V 60 Hz; Output Volts - 120/208/240V 60 Hz; Full Load / Run Time - 14; Half Load / Run Time - 35; Output Receptacles - Hard wired; Input Connection - Hard wired; Protection - Surge Protection; Interface - DB-25 RS-232 Serial Port; HxWxD - 21.20x15.25x22.90 in (538x387x582 mm); Additional Information - Configuration: Tower, Color: Beige; Manufacturer Series - Powerware