Three-Phase Input. Single-Phase Output. Rackmount Power Flexibility. In applications where three-phase power is available but only a large single-phase load is required, the PowerShield Centurion 3/1 Rack UPS offers an ideal solution. Designed for installations that demand a balanced load and efficient power distribution, this UPS accepts three-phase input and delivers a robust single-phase output, making it suitable for environments with limited single-phase infrastructure. Built on the proven Centurion platform, the 3/1 Rack series retains all the core features of the range — including True Online Double Conversion technology, a user-friendly front-panel LCD display, and compatibility with standard 19-inch rack enclosures. Operators can monitor and configure the UPS both via the panel and included software, ensuring seamless integration and control. True On-Line Double Conversion. Rackmount. No batteries but includes larger internal charger. Must be sold with 1 x PSCERBB20 Battery Bank. Single unit weights & dimensions Packaged: 870L x 580W x 250H mm - 25kg Unpackaged: 668L x 438W x 133H mm - 22kg