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Rectangular black metal 2U rackmount UPS with front LCD display and six rear outlets

Vertiv

Vertiv PSI5-1500RT120LI 1500VA 1350W 120V 2U UPS

SKU CH-05QW-8JP0H MPN PSI5-1500RT120LI

Lithium-ion UPS delivers 1500 VA / 1350 W with 6 NEMA 5-15R outlets, 2-hour recharge and 10-year battery life in a 2U rack or tower form factor

  • International Version120VAC Default; 100/110/115/125VAC User Selectable
  • Input Voltage Range75-146 VAC
  • Input Frequency55~65Hz (57~63Hz Battery to Normal Comeback)
  • Input ConnectionNEMA 5-15P
  • VA Rating1500 VA
  • Watts1350W

Option PSI5-1500RT120LI

Struck-through versions exist but are not stocked here.

  • Lithium-ion battery lasts up to 10 years before replacement
  • Half-load runtime of 18 minutes keeps critical gear running longer
  • Recharges to 90 percent in just 2 hours
  • 2U rack or tower form factor fits dense server racks
  • Surge protection meets ANSI C62.41 Category A Level 3

Product Identity

The Vertiv PSI5-1500RT120LI is a 1500VA 1350W line-interactive UPS with lithium-ion batteries. It fits IT managers protecting rack-mounted servers or network gear in a 2U space, and also suits tower deployments where floor space is limited.

Bundle Impact

Six NEMA 5-15R outlets include programmable sockets that let administrators shed non-critical loads during extended outages. A USB port enables direct monitoring, while the lithium-ion pack delivers a 10-year design life and hot-swap replacement without powering down connected equipment.

Pre-Installation Checks

Verify your facility supplies 75-146 VAC at 55-65 Hz and that the NEMA 5-15P input plug matches your branch circuit. Confirm the 3.38" x 17.24" x 16.18" chassis fits your rack or shelf, and ensure the operating environment stays between 32°F and 104°F with 20-90% non-condensing humidity.

Highlights

  • Lithium-ion battery lasts up to 10 years before replacement
  • Half-load runtime of 18 minutes keeps critical gear running longer
  • Recharges to 90 percent in just 2 hours
  • 2U rack or tower form factor fits dense server racks
  • Surge protection meets ANSI C62.41 Category A Level 3

Specifications

BrandLiebert
SeriesPSI5
ModelPSI5-1500RT120LI
International Version120VAC Default; 100/110/115/125VAC User Selectable
Input Voltage Range75-146 VAC
Input Frequency55~65Hz (57~63Hz Battery to Normal Comeback)
Input ConnectionNEMA 5-15P
VA Rating1500 VA
Watts1350W
Output Voltage120 VAC Default; 100/110/115/125 VAC User Selectable
Outlets6
Outlet Type6 x NEMA 5-15R
Battery TypeLithium Ion
Battery Run TimeFull load: 7.5 min
Half load: 17.7 min
Battery Recharge Time2hrs to 90%
Interface PortUSB
ApprovalsUL 1642 (LiFe cells), UL 1973 (LiFe pack), UL 1778, CSA 22.2 no. 107.3
Rackmountable2U Rack / Tower
Surge ProtectionANSI C62.41, Category A, Level 3
TemperatureOperating Temperature,°F (°C): 32° to 104° (0° to 40°)
Storage Temperature °F (°C): 5° to 120° (-15° to 50°)
Humidity20% - 90%, non-condensing
Dimensions3.38" x 17.24" x 16.18"
Weight28.3 lbs.
Shipping weight16.33 kg
Package size584 × 559 × 254 mm

Other versions of this model

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Questions about this item

How often will the lithium-ion battery pack need replacement in the PSI5-1500RT120LI?

The lithium-ion battery is rated for a 10-year service life, so replacement is not expected for a decade under normal operating conditions.

What is the maximum load the 1350-watt output can sustain before the UPS switches to battery?

The unit supports up to 1350 watts continuous; loads above that level will cause an immediate transfer to battery power.

How much heat does the 2U rack unit produce when running at full load all day?

The UPS operates up to 104 °F (40 °C) ambient; internal heat output scales with the connected load but stays within the rated temperature envelope.

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