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Product Model


The Vertiv™ Liebert® PSI5 Lithium-Ion uninterruptible power supply (UPS) is designed to safeguard critical equipment in edge and distributed IT applications. This 1920VA rack/tower UPS offers more than double the battery life of a traditional VLRA UPS, and comes with a five-year advanced replacement warranty. This Lithium-Ion battery backup also includes automatic voltage regulation (AVR) technology to further extend battery life and provides premium protection from power disturbances.

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Key Benefits
LITHIUM-ION BATTERIES: Lithium-ion batteries last twice as long as traditional VRLA batteries, or longer.
LOW TOTAL COST OF OWNERSHIP: Fewer or no battery replacement over the life of the Vertiv™ Liebert® PSI5 Lithium-Ion UPS.
5-YEAR STANDARD WARRANTY: Vertiv™ backs this UPS system with a 5-year warranty including batteries.
LONGER RUNTIME: This 1920VA UPS offers up to 8.6 minutes of runtime at full-load and 19.0 minutes at half-load.
FASTER RECHARGES: Get 100% capacity by recharging in 2.1 hours to 100% in this rack UPS.
Best Suited For:
  • Education
  • Banking, Financial and Insurance
  • Government
  • Healthcare
  • Retail and Wholesale
Warranty: Vertiv backs all Liebert® PSI5 Lithium-Ion UPS systems with 5-year advanced replacement warranty including battery. This covers all shipping fees and includes next-day delivery, which ensures customers will receive their replacement unit prior to returning their aged unit.


Lower Total Cost of Ownership (TCO), PSI5-Lithium-Ion batteries last up to three times as long resulting in fewer battery replacements
5 year standard warranty on the UPS and batteries
Longer battery runtime and quicker battery recharge times
Eligible for the Vertiv™ Trade-In Program. Contact a Vertiv partner for discount rates and to calculate your savings


0.9 Output Power Factor delivers more usable power, saving space and costs 
Tower, 2U Rack/Tower and 3U Short Depth Rack/Tower models available 
Up to ten battery-backed outlets 
Pure Sinewave Output
Programmable outlets 
 Hot-swappable, user-replaceable batteries
Plug and Play installation
Wide input voltage window to prolong battery life
Advance early warning of UPS system status issues 
USB communications for UPS status monitoring and management
SNMP support 
Optional Liebert® IntelliSlot™ IS-UNITY communications card for remote monitoring and control
Remote emergency shut down capability via EPO port

The Vertiv™ Liebert® PSI5 Lithium-Ion UPS provides power protection for critical equipment in edge and distributed IT applications. Lithium-ion batteries provide more than double the useful life of traditional VLRA batteries, resulting in up to 60% TCO savings or more. The UPS uses AVR technology to further extend battery life and offers 2-4 times the runtime of comparable UPS systems at full load. It also comes with a rotating LCD display to allow both rack and tower configurations.

Product Overview
Power Rating
1920VA / 1920W
Input Voltage
Nominal: 120VAC / Range: 75-146VAC
Output Voltage
120VAC Default; 100/110/115/125VAC User Selectable
Up to 97.1% (Normal Mode)
Input: 5-20P or L5-20P; Output: 6x5-20R, 1x L5-20R
Interface Options
Optional communications card (Liebert® IntelliSlot™ UNITY), USB, EPO connector
SNMP and web management enabled with optional Liebert® IntelliSlot™ UNITY communications card
Control Panel
Rotatable LCD display provides flexible installation options (rack/tower)
Service Access
Front Access (hot-swappable battery kits)
Operational Conditions
Operating Temperature
32° to 104° F (0° to 40° C)
Pure sinewave output on battery
UN38.3, UL 1778, c-UL-us Listed, NOM, FCC Part 15, Class B
Line-interactive (automatic voltage regulation)

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Products Support Contacts

Showing contacts for Virginia, 20149, USA Change
Vertiv (Liebert Services)
+1 800 543 2378
610 Executive Campus Drive Westerville Ohio 43082 USA
Product areas of focus: Uninterruptible Power Supplies (UPS), Power Distribution, Thermal Management, Integrated Solutions, Racks and Containment
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