APC AP7731 Automatic Transfer Switch supports redundant AC power to connected equipment. Two AC lines power the unit and if the primary AC power fails, the unit will automatically switch to the alternative power source. Full-featured network management interfaces that provide standards-based management via Web, SNMP, and Telnet. Allows users to access, configure, and manage units from remote locations to save valuable time. Associated with this feature is the ability to quickly and easily upgrade the firmware via network download to installed units for future product enhancements. (Maximum Total Current Draw 30-AMPS) (OUTPUT CONNECTIONS :QTY-1) NEMA L6-30R (Battery Backup) (Nominal Input Voltage 200V , 208V , 230V) (Input Connections NEMA L6-30P)