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Product Family

Vertiv™ Liebert® PSI5 Lithium-Ion TAA UPS

Liebert® PSI5 Lithium-Ion TAA line-interactive UPSs are ideally suited to protect critical infrastructure in edge or distributed IT applications. When compared to traditional valve-regulated-lead-acid (VRLA) batteries, Lithium-Ion batteries have greater power density, last up to 3 times longer, recharge much more quickly, and can endure up to 10x more discharge cycles. With a 5-year standard warranty, more than double the useful life, and significantly more runtime, the Liebert PSI5 Lithium-Ion TAA UPS is at the top of its class.

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Key Benefits
TAA-Compliant; For Government Business
Liebert PSI5 Lithium-ion batteries (LIB) provide a lower total cost of ownership more than 50% than comparable VRLA UPSs
Fewer battery replacements – LIB last up to 3 times longer than VRLA batteries
5-year advanced replacement no-hassle warranty
Longer Runtime – up to 9min at full-load
Remote Management capability and Free Power Management Software via optional networking cards
Quicker recharge times – the LIB in the Liebert® PSI5 UPS charge to 90% in 2 hours or less
10x More Discharge Cycles – LIB can endure up to 10x more discharge/charge cycles than VRLA batteries
Better Power Density – LIB provide more power in smaller spaces than VRLA batteries
Best Suited For:
  • Banking, Financial and Insurance
  • Education
  • Government
  • Healthcare
  • Retail and Wholesale
Warranty: Vertiv backs all Liebert® PSI5 Lithium-Ion TAA 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.
Tools & Selectors
Select, compare, or configure UPS systems and models
UPS Selector
Interactive product selector for single-phase UPS
UPS/Battery Upgrade Services
Explore options to maintain Liebert® GXT & Liebert® PSI UPS
Liebert® EXL S1 360 Interactive Experience
Visualize and explore key features and benefits of the Liebert® EXL S1 UPS

The Liebert® PSI5 Lithium-Ion TAA 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 TAA 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 TAA 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 98% 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 TAA UPS is a true low-maintenance, set-it-and-forget-it solution.

Model Specifications Overview
PSI5-1500RT120LITAA
1500VA / 1350W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 98% (Normal Mode)   Input: 5-15P; Ouput: 6 x 5-15R   3.4 in   17.2 in   16.2 in   28.3 lbs  
PSI5-2200RT120LITAA
1920VA / 1920W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 98% (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  
PSI5-3000RT120LITAA
3000VA / 2700W   Nominal: 120VAC / Range: 75-146VAC   120VAC Default; 100/110/115/125VAC User Selectable   Up to 98% (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  
  • 1000VA – 3000VA
    Wide range of capacities allow you to select the power and runtime that best meet your needs.

  • Optimized form factors
    Rack/Tower convertible form factors provide flexibility at sites with variable installation needs.

  • Superior Battery Technology
    Lithium-Ion batteries require fewer battery replacements and last up to 3x as long as traditional VRLA batteries reducing maintenance, labor, and replacement costs (resulting in the lowest TCO). Internal batteries offer industry-leading runtime (up to 14 minutes at full load) to protect critical equipment during an unexpected power loss.

  • High Performance
    Lithium-Ion battery technology offers better performance at higher temperatures, supports up to 10 times more discharge cycles, and delivers faster recharge times compared to VRLA batteries.

  • Lowest total cost of ownership
    Lithium-ion batteries last up to 3 times as long as VRLA batteries, resulting in fewer battery replacements saving time and money

  • Online double conversion topology
    Reliable online double conversion topology isolates connected equipment from utility power disturbances while providing top of the line voltage/frequency regulation and surge protection. It is generator friendly with zero transfer time and features an internal automatic bypass.

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

  • High output power factor
    0.9 to unity power factor provides more actual power to the load increasing power density.

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

  • Internal and external bypass
    Automatic internal bypass provides seamless power to the connected load in the unlikely event of a system issue.

    Optional external maintenance bypass supports the load during planned maintenance or UPS upgrades

  • 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.

  • 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.

  • Scalable runtime
    When longer runtime is desired, External Battery Cabinets (EBC) may be added to increase the runtime and availability of your connected devices. EBCs are auto detected so no user configuration is necessary.

  • Individual programmable outlets
    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.

  • Energy Star 2.0 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.

  • Generator friendly design
    Integrates seamlessly into site power infrastructure

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

  • Network grade surge protection
    Network grade surge protection meets ANSI C62.41, Category B standards, providing a high level of input surge protection.

  • Emergency Power Off (EPO) 
    Remote UPS shutoff in the event of a fire or other onsite emergency.

  • Communication ports
    USB and Serial ports support monitoring and management 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.

  • 5-year warranty
    Complete coverage on UPS including batteries.

  • Equipment Protection Plan (EPP)
    $500,000 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.

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*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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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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