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Product Family

Vertiv™ Liebert® PSI5 UPS, 750VA - 5000VA, Line Interactive Mini Tower, 1U and 2U Rack/Tower 120V VRLA UPS

The Vertiv™ Liebert® PSI5 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. 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
750VA – 5000VA, Tower, Rackmount and Rack/Tower optimized form factors
Pure sinewave output on battery
User-replaceable, hot-swappable batteries
Intellislot™ network management card options
Programmable outlets
Free Power Assist™, Power Insight™ software
Warranty: Vertiv backs all Vertiv™ Liebert® PSI5 UPS systems with two-year, full unit coverage, including the battery. The Vertiv no-hassle, advanced replacement warranty covers all shipping fees and includes next-day delivery, which ensures customers will receive their replacement UPS prior to returning their damaged unit with no questions asked.
Tools & Selectors
Select, compare, or configure UPS systems and models
Runtime Tool
Get detailed runtime information for various load levels
UPS Selector
Interactive product selector for single-phase UPS
UPS/Battery Upgrade Services
Explore options to maintain Liebert® GXT & PSI UPS

The flexible design of the Liebert® PSI5 allows the UPS to be tower (MT models), 1U rack mountable (1U models), or to be configured as a self-standing tower or to be rack-mounted within a 2U space (RT models). It is available from 750VA to 5000VA with both 120V or 208V models. The Liebert® PSI5 UPS features an innovative advanced line-interactive design incorporating buck/boost Automatic Voltage Regulation (AVR) technology. This protects against utility voltage fluctuation by raising and lowering utility power to the level needed by the connected equipment. It also allows the UPS to prolong battery life by maximizing its time on utility power before going to battery. Models with a capacity of 1500VA and below are not for sale in Vermont, Colorado, Washington.

Model Specifications Overview
PSI5-750MT120
750 VA / 675 W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 97% (Normal Mode)   Input: 5-15P; Ouput: 5 x 5-15R   9.4 in   5.7 in   14.8 in   24.7 lb  
PSI5-1100MT120
1,100 VA / 990 W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 97% (Normal Mode)   Input: 5-15P; Ouput: 5 x 5-15R   9.4 in   5.7 in   14.8 in   26.0 lb  
PSI5-1500MT120
1,440 VA / 1,350 W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 97% (Normal Mode)   Input: 5-15P; Ouput: 6 x 5-15R   9.4 in   5.7 in   19.1 in   40.1 lb  
PSI5-1000RM1201U
1,000 VA / 900 W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 98% (Normal Mode)   Input: 5-15P; Ouput: 5 x 5-15R   1.7 in   17.2 in   20.1 in   36.4 lb  
PSI5-1500RM1201U
1,440 VA / 1,350 W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 98% (Normal Mode)   Input: 5-15P; Ouput: 5 x 5-15R   1.7 in   17.2 in   24.8 in   45.6 lb  
PSI5-800RT120
800VA / 720W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   3.5 in   17.2 in   16.2 in   28.9 lb  
PSI5-1100RT120
1100VA / 990W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   3.5 in   17.2 in   16.2 in   31.1 lb  
PSI5-1500RT120
1500VA / 1350W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   3.5 in   17.2 in   20.1 in   42.8 lb  
PSI5-2200RT120
2200VA / 1920W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: L5-20P; Output: 6 x 5-15R, 1 x L5-20R   3.5 in   17.2 in   24.8 in   59.1 lb  
PSI5-3000RT120
3000VA / 2700W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: L5-30P; Output: 6 x 5-15R, 1 x L5-30R   3.5 in   17.2 in   24.8 in   70.8 lb  
PSI5-5000RT208
4250VA / 3825W   Nominal: 208VAC / Range: 150-281VAC   208VAC (100/110/115/125 VAC TDU Required)   Up to 96% (Normal Mode)   Input: L6-30P; Output: 4 x L6-30R   3.5 in   17.2 in   24.8 in   87.7 lb  
PSI5-800RT120N
800VA / 720W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   3.5 in   17.2 in   16.2 in   28.9 lb  
PSI5-1100RT120N
1100VA / 990W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   3.5 in   17.2 in   16.2 in   31.1 lb  
PSI5-1500RT120N
1500VA / 1350W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: 5-15P; Output: 6 x 5-15R   3.5 in   17.2 in   20.1 in   42.8 lb  
PSI5-2200RT120N
2200VA / 1920W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: L5-20P; Output: 6 x 5-15R, 1 x L5-20R   3.5 in   17.2 in   24.8 in   59.1 lb  
PSI5-3000RT120N
3000VA / 2700W   Nominal: 120VAC / Range: 75-146VAC   120VAC (100/110/115/125VAC user-configurable)   Up to 96% (Normal Mode)   Input: L5-30P; Output: 6 x 5-15R, 1 x L5-30R   3.5 in   17.2 in   24.8 in   70.8 lb  
  • 750VA – 5000VA

    Wide range of capacities allow you to select the power and runtime that best meet your needs.

  • Optimized form factors

    Multiple form factors to suit all site requirements, including tower, 1U Rackmount, 2U Rack/Tower convertible form factors to provide flexibility at sites with variable installation needs.

  • 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 simulates utility power and is compatible with active power factor corrected power supplies.

  • High output power factor

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

  • 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.

  • 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.

  • Advanced battery charging including temperature compensation

    A three-stage charger with a smart control CPU optimizes the battery charging cycle and maximizes battery 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 the Rack/Tower UPS models to increase the runtime and availability of your connected devices.

  • 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

  • USB management port

    USB port supports 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.

  • 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.

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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.

Find Your Area Contact

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

Additional Resources

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How Do You Select a UPS for Power Backup?

Your specific needs should determine your IT power decision. Selecting a UPS for your particular application requires an examination of a number of factors. The load size, location and criticality of the equipment to be protected are key, as well budgetary considerations, when choosing a UPS for power backup.

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Power Continuity Services Selector: Renew and Maintain Your Vertiv Single-Phase UPS Population

Power Continuity Services offers flexible and complete lifecycle power renewal options for Liebert® GXT and Liebert® PSI UPS systems. This comprehensive program ranges from customer battery replacement to full-service replacement of battery and UPS with service contracts. Utilize this selector to identify what options are available for your equipment.

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