Vertiv Liebert PSI5 800VA AVR UPS Battery Backup


Vertiv Liebert PSI5-800RT120 UPS is a compact rackmount or tower, AVR line-interactive UPS system designed especially for IT applications such as network closets and small data centers.

Supports advanced pure sine wave output on battery to safeguard critical IT equipment and business electronics. It also provides reliable power protection for servers, critical nodes, network workstations, large network peripherals, network routers, bridges, and other electronic equipment.



The flexible design of the Vertiv Liebert PSI5 allows the UPS to be configured as a self-standing tower or to be rack-mounted within a 2U space. It is available in six capacities with both 120V or 208V models.

  • Battery backup provides ample time for an orderly shutdown of connected equipment
  • Liebert PSI5 UPS operates at a high 0.9 output power factor
  • Available network communications card provides remote monitoring
    and power management capability — Local USB or SNMP via optional Vertiv Liebert UNITY communication card
  • Liebert PSI5 UPS is compliant with the Restriction of Hazardous Substances Directive (RoHS)
  • Rotatable LCD Display allows users to view real-time conditions, alarm notices, and runtime information
  • The standard Liebert PSI5 UPS can accept external battery cabinets for long runtime applications
Ideally Suited for:
  • Servers
  • Network Closets
  • Safety and Security systems
  • Network Workstations
  • Large Network Peripherals
  • Storage
  • VoIP
  • Media Closet Equipment
  • POS Systems

Warranty: Vertiv backs all Vertiv Liebert PSI5 UPS systems with two-year, full unit coverage, including the battery. The Vertiv no-hassle, advanced replacement warranty covers all shipping fees and includes next-day delivery, which ensures customers will receive their replacement UPS prior to returning their damaged unit with no questions asked.


Type: Line Interactive 500-3000