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Product Family

Vertiv™ Liebert® PSI5 UPS, 1500VA - 3000VA, Line Interactive Mini Tower and 2U/3U Rack/Tower Lithium-Ion UPS

The Vertiv™ Liebert® PSI5 Lithium-Ion Line Interactive UPS family provides network grade uninterruptible power protection with pure sinewave output power and automatic voltage regulation ensuring availability of critical systems and information. PSI5 Lithium-Ion batteries provide a greater return on investment with 3 times greater battery life, recharge faster, perform better in higher temperatures, are lighter and have greater power density. Reliable and efficient power protection for servers, network equipment, medical devices, point-of-sale (POS) devices and security systems.

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Key Benefits
1500VA – 3000VA, Tower and Rack/Tower optimized form factors.
Pure Sinewave output on battery
Lithium-Ion battery with an 8 to 10-Year design life
50% lower Total Cost of Ownership (TCO)
Intellislot™ network management card options
Free Power Assist™, Power Insight™ software
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.

Sustainability Spotlight

  • Lithium-ion batteries require less onsite maintenance, reducing truck rolls and avoiding associated carbon emissions.
  • Lithium-ion batteries have a longer life, reducing waste and material consumption.
  • Lithium-ion batteries use less material for equal output and up to 99% of the battery elements are recyclable.
Tools & Selectors
Select, compare, or configure UPS systems and models
TCO Calculator
Calculate total cost of ownership for Lithium-ion UPS vs. VRLA
Runtime Tool
Get detailed runtime information for various load levels
UPS Selector
Interactive product selector for single-phase UPS

The Liebert® PSI5 Lithium-Ion UPS is ideally suited to protect critical infrastructure in edge or distributed IT applications. Lithium-ion batteries have a life expectancy of 8-10years, which is up to 3 times longer than VRLA batteries. That translates to fewer (if any) battery replacements over the lifespan of the UPS, which means savings on batteries as well as the labor to install them – an especially important issue at remote locations with few or no IT personnel on site. It adds up to more than 50% lower total cost of ownership vs. VLRA batteries. The Liebert PSI5 Lithium-Ion line interactive UPS includes automatic voltage regulation (AVR) technology, which protects against utility voltage fluctuation to extend battery life by maximizing time on utility power, and provides premium protection from power disturbances. In battery mode, the Liebert PSI5 UPS delivers pure sine wave output to protect sensitive servers and networking equipment. With up to 20 min. of runtime at half load and 9 min. at full load – more than comparable competing models – the Liebert PSI5 Lithium-Ion UPS provides plenty of runtime during an outage for an orderly shutdown. It comes with a rotating LCD display to allow both rack and tower configurations, provides real time information regarding UPS status and operating conditions, and supports remote monitoring. It's also highly energy efficient, delivering up to 97% efficiency at full load in normal operating mode. You can rest assured your business is protected with this Vertiv solution, which includes a 5-year full factory warranty. The Liebert PSI5 Lithium-Ion UPS is a true low-maintenance, set-it-and-forget-it solution.

Model Specifications Overview
1500VA / 1350W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 97.1% (Normal Mode)   Input: 5-15P; Ouput: 6 x 5-15R   3.4 in   17.2 in   16.2 in   28.3 lbs  
1920VA / 1920W   Nominal: 120VAC / Range: 75-146VAC   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   3.4 in   17.2 in   20.1 in   39.5 lbs  
3000VA / 2700W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 97.3% (Normal Mode)   Input: L5-30P; Ouput: 6 x 5-20R, 1 x L5-30R   3.4 in   17.2 in   24.8 in   53.5 lbs  
1500VA / 1350W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 97.1% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   8.7 in   6.3 in   15.6 in   27.9 lbs  
3000VA / 2700W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 97.3% (Normal Mode)   Input: L5-30P; Output: 9 x 5-20R, 1 x L5-30R   5.4 in   17.3 in   16.9 in   56 lbs  


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 tenbattery-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

*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.

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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

News & Insights

Edge Computing

Video: Vertiv™ Liebert® PSI5 Lithium-Ion UPS

The Vertiv™ Liebert® PSI5 Lithium-Ion UPS is designed to safeguard critical equipment in Edge and Distributed IT applications. The Liebert PSI5 Lithium-ion offers more than double the battery life of a traditional VLRA UPS, comes with a five year factory warranty, and can provide a TCO savings up to 50% or more. Available in North America through Local Vertiv Offices and distribution channels.


Outlining the Advantages of Lithium-ion Batteries for UPSs (and Dispelling One Myth)

From longer life, smaller size, lighter, faster recharge time and ability to withstand higher temperatures, lithium-ion batteries bring significant benefits to UPSs – including total cost of ownership (TCO) savings (up to 50% vs. lead acid batteries).


Edge for New Applications

The need to process information close to where it is being consumed has become paramount to end user satisfaction. Whether supporting real-time analytics associated with the Internet of Things (IoT) or reducing latency on data-intensive applications, legacy technology may not be enough for the current demands of the edge evolution.

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