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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
PSI5-1500RT120LI
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  
PSI5-2200RT120LI
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  
PSI5-3000RT120LI
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  
PSI5-1500MT120LI
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  
PSI5-3000SRT120LI
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  
  • 1500VA – 3000VA

    Wide range of available sizes to allow you to select the capacity and runtime that best meet your needs.

  • Optimized form factors

    Multiple form factors to suit all site requirements, including tower, 2U and 3U Rack/Tower convertible form factors to provide flexibility at sites with variable installation needs.

  • Lithium-ion batteries

    Vertiv lithium-Ion batteries provide longer runtime, up to 3 times longer life expectancy than Valve-Regulated-Lead-Acid (VRLA), batteries, recharge more quickly, endure up to 10X more discharge cycles and perform better in higher temperatures.

  • Lowest Total Cost of Ownership (TCO)

    The longer life expectancy of lithium-ion batteries reduces maintenance, labor, and replacement costs, making it the lowest TCO UPS solution.

  • Sustainable

    Lithium-ion batteries use less material for equal output and up to 99% of the battery elements are recyclable. The longer lifespan of a lithium-ion battery reduces waste and material consumption.

  • Safe and reliable

    Safest lithium-ion (LiFePO4) battery chemistry and integrated Battery Management System (BMS) ensure safe and reliable operation.

  • Battery Management System (BMS)

    The BMS monitors the lithium-ion battery health at the cell level. It manages the charging, depth of discharge, temperature, and voltage of the battery. The BMS prevents overcharging, ensures safe operation, and preserves the battery throughout its life.

  • Automatic Voltage Regulation (AVR)

    When incoming utility power fluctuates, AVR stabilizes the output power without needing to go to battery, which extends the life of your battery and preserves your UPS battery for an outage.

  • Pure sinewave output

    Pure sinewave output while on battery to simulate utility power and is compatible with active power factor corrected power supplies.

  • High power factor

    0.9 Power Factor provides more actual power to the load increasing power density.

  • Energy Star Certified

    A government certification for energy efficiency. This product meets strict energy-efficiency specifications that reduces energy consumption, saving money and helping protect the environment.

  • Gravity sensing LCD display

    An intuitive LCD display that provides UPS status, power metrics, configuration options, alarms, and fault codes to manage the UPS.

  • Programmable outlet groups

    Configurable outlets for load management. Cycle power to hung devices and load shed connected equipment, prioritizing critical devices to extend availability while on battery backup power.

  • User-replaceable, hot-swappable batteries

    User-replaceable batteries may be swapped out quickly and safely without disruption and without having to turn off connected equipment.

  • Input circuit breaker

    Re-settable breaker protects against equipment damage from a short circuit or overload.

  • Network grade surge protection

    Network grade surge protection protects connected equipment from power surge damage.

  • Emergency Power Off (EPO)

    Remote UPS shutoff in the event of a fire or other onsite emergency

  • USB management port

    USB port to support monitoring and management requirements of the UPS.

  • Optional management and communication cards

    Intellislot™ enables network integration connectivity and allows remote monitoring, start-up or restart of the connected equipment. SNMP, Modbus, BACnet and environmental sensor options are available.

  • Free management software

    Power Assist software for local management via USB. Easy to install and allows for simple configuring, monitoring, alarm notifications and management of the UPS. Automatic shutdown options protect connected equipment during an extended power loss and ensure against data loss.

    Power Insight software for on-premise and remote UPS monitoring and management with notifications and control of network connected devices. Configurable, automatic shutdown for physical and virtual servers. Includes integrations with VMWare vCenter, Dell VXRail Manager, and Nutanix Prism Central. Provides a single dashboard view of the UPS status, alarms, notifications, and summary data.

  • Equipment Protection Plan (EPP)

    $400,000 Equipment Protection Plan provides reimbursement or replacement of any connected equipment that is damaged by a power surge while connected to your Vertiv UPS.

  • Trade-In Program

    Allows you to trade in an aging Vertiv or competitor's UPS for a new Vertiv equivalent UPS at a discount. Vertiv will manage the collection and disposal of your old UPS at no cost.

Do not Display

*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.

Find Your Area Contact

Products Support Contacts

Showing contacts for 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

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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.

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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).

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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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