PST4-500MT120 | FrontView
PST4-500MT120 | RearView
PST4-500MT120 | LeftSideView
PST4-500MT120 | RightSideView
PST4-500MT120 | UnpackedBox
PST4-500MT120 | FeatureInfographics
This product is discontinued.

The Liebert PST4 is an offline UPS designed to provide reliable power protection for small and home office computer and network, and home entertainment equipment.


Surge protection & battery backup - 500VA/300W UPS with guaranteed protection of desktop computers, gaming consoles, workstations, wireless networks/routers, surveillance and other electronicsNever fear an outage - Provides backup power and protection during damaging surges, spikes or power outagesExcellent warranty - 3 year full unit coverage including the battery with no-hassle, advanced replacement warranty6 outlets - 3 surge & 3 battery - with USB port and multiple mounting capabilitiesTAA Compliant, RJ11/45 for data line surge protection, advanced early warning of shutdown & EMI/RFI filters


  • 2 minutes back up at full load
  • Lightning and surge protection
  • RJ11/45 for data line surge protection
  • Coax cable surge protection on 660/850VA models onlyLow Total Cost of Ownership:
  • 3 year full unit coverage with our no-hassle, advanced replacement warranty
  • Optional 1 or 3 year extended warranty

Brochures and Data Sheets

Specification Documentation