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    Vertiv Liebert PSI5-1500RT120LI PSI5 Lithium-Ion UPS 1500VA/1350W 120V Line Interactive AVR - 2U Rack/Tower| Remote Management Capable| With Programmable Outlets

    • PSI5-1500MT120LI
    • PSI5-1500MT120LIN
    • PSI5-1500RT120LI
    • PSI5-1500RT120LIN
    • PSI5-2200RT120LI
    • PSI5-2200RT120LIN
    • PSI5-3000RT120LI
    • PSI5-3000RT120LIN
    • PSI5-3000SRT120LI
    • PSI5-3000SRT120LIN
    • PSI5-500SRT1ULI
    • PSI5-500SRT1ULIN
    • Maximum Operating Temperature 104°F (40°C)
    • Battery Life 10 Year
    • Battery Chemistry Lithium Ion (Li-Ion)
    • Hot Swappable Yes
    • Backup/Run Time (Half Load) 18 Minute
    • Backup/Run Time (Full Load) 8 Minute
    • Typical Battery Recharge Time 2 Hour
    • USB Yes
    • VGA No
    • Network (RJ-45) Yes
    • Modem (RJ-11) Yes
    • Serial Port No
    • EPO Port Yes
    • Circuit Breaker Yes
    • Input Voltage 120 V AC
    • Output Voltage 120 V AC
    • Waveform Type Pure Sine Wave
    • Input Voltage Range 75 V AC - 146 V AC
    • Load Capacity (VA) 1500 VA
    • Load Capacity (Watt) 1350 W
    • Weight (Approximate) 28.30 lb
    • Form Factor Rack/Tower
    • Rack Height 2U
    • Country of Origin China
    • Environmentally Friendly Yes
    • TAA Compliant No
    • Energy Star No
    • Application/Usage Server, Mission Critical Equipment, Network Equipment
    • Dataline Protection RJ-45, RJ-11
    • Plug/Connector Type NEMA 5-15P
    • Cord Length 10 ft
    • Phase Single Phase
    • Receptacle Type NEMA 5-15R
    • EMI/RFI Noise Filter Yes
    • AVR Yes
    • Transfer Time 4 ms
    • Receptacle Detail 6 x NEMA 5-15R
    This item is covered under the Manufacturer Only Return Policy.
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    LIEBERT PSI5 LITHIUMION 1500VA

    Warranty & Returns

    Warranty, Returns, And Additional Information

    Warranty

    • Limited Warranty period (parts): 5 years
    • Limited Warranty period (labor): 5 years
    • Read full details

    Return Policies

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    The Vertiv Liebert PSI5-1500RT120LI is a 1500VA/1350W line-interactive lithium-ion UPS for servers, network equipment, and other mission-critical devices that need 120V battery backup, pure sine-wave output, and automatic voltage regulation in a 2U rack or tower format.

    Recommended For

    • Small server-room or network-closet operators who need rack- or tower-mounted backup for servers and network equipment, with enough time for a brief outage or orderly shutdown.
    • IT teams managing distributed or edge locations who want a 2U rack/tower UPS that can fit installations where standard rack depth is a constraint.
    • Facilities teams protecting equipment at sites where reducing battery replacement and maintenance frequency matters; Vertiv positions the lithium-ion battery for an 8–10-year design life.
    • Users powering equipment that benefits from pure sine-wave battery output, such as compatible servers and network devices, and who need line-interactive voltage regulation for common input-voltage fluctuations.

    Real-World Use Scenarios

    • In a small server rack, a business can connect a server and essential network equipment to keep them running through a brief outage and allow an orderly shutdown if power stays off; runtime depends on the connected load.
    • In a network closet or edge-IT rack, the UPS can back up a router, firewall, and switch during an outage, helping keep local connectivity available long enough for a short interruption or controlled shutdown.
    • Where input power regularly sags or fluctuates, the UPS can regulate common voltage variations without switching to battery, while providing battery backup if utility power falls outside its operating range.
    • For a rack with both essential and less-critical equipment, users can place priority devices on the battery-backed outlets and use the programmable outlet group to shed selected loads during an outage, helping preserve runtime for critical gear.
    • At a remote or lightly staffed site, the lithium-ion battery’s longer expected service life can mean fewer planned battery replacements; network-based monitoring and alerts require the appropriate management card.

    Spec Summary

    AttributeValue
    Best ForServer, mission-critical, and network equipment needing 120 VAC backup in a 2U rack or tower installation
    Power Capacity And Input/Output1500 VA / 1350 W UPS with 120 VAC default output; 100, 110, 115, and 125 VAC are user-selectable. Accepts 75–146 VAC input
    Battery And RuntimeLithium-ion battery provides 7.5 minutes of runtime at full load and 17.7 minutes at half load; recharges to 90% in 2 hours
    Input And OutletsNEMA 5-15P input connection with six NEMA 5-15R outlets
    InterfaceUSB interface port
    Rack Fit And Dimensions2U rack/tower configuration; 3.38 × 17.24 × 16.18 inches and 28.3 lb
    Operating EnvironmentOperating temperature: 32–104°F (0–40°C); storage temperature: 5–120°F (−15–50°C); humidity: 20–90%, non-condensing
    Protection And ApprovalsSurge protection meets ANSI C62.41 Category A, Level 3; approvals include UL 1642, UL 1973, UL 1778, and CSA 22.2 No. 107.3
    Model IdentifiersLiebert PSI5 series, model PSI5-1500RT120LI