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Black rectangular 2U rackmount UPS with front LCD display and rear NEMA outlets

Vertiv

Vertiv PSI5-3000RT120LI UPS 3000VA 2700W 120V Lithium-Ion 2U

SKU CH-CNMZ-S4RT4 MPN PSI5-3000RT120LI

A 2U rack or tower UPS with lithium-ion batteries lasting 10 years, delivering 3000VA and 2700W through seven outlets including one NEMA L5-30R and six NEMA 5-20R

  • 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 L5-30P
  • VA Rating3000VA
  • Watts2700W

Option PSI5-3000RT120LI

Struck-through versions exist but are not stocked here.

  • Lithium-ion cells deliver a 10-year design life for fewer replacements
  • 2U rack or tower form factor fits standard enclosures without extra hardware
  • Hot-swappable battery modules let you change cells without powering down connected equipment
  • 20 minutes runtime at half load keeps critical systems running during short outages
  • USB port enables direct monitoring and graceful shutdown from a single management station

3000VA lithium-ion UPS for rack or tower

The Vertiv PSI5-3000RT120LI is a line-interactive uninterruptible power supply rated at 3000VA and 2700W with a 120V default output. It fits in a 2U rackmount or tower form factor and uses lithium-ion cells that deliver a 10-year design life. Seven outlets provide one NEMA L5-30R and six NEMA 5-20R connections for protected equipment. The unit is built for server rooms, network closets and edge sites that need extended runtime in a compact footprint.

Input range and line-interactive limits

The UPS accepts an input window of 75 to 146 VAC at 55 to 65 Hz and uses automatic voltage regulation to correct sags and swells without draining the battery. When utility power returns the transfer back to normal occurs between 57 and 63 Hz. Surge protection meets ANSI C62.41 Category A Level 3. Because the topology is line-interactive, deep or prolonged outages will exhaust the battery faster than a double-conversion design.

Pre-installation checks for your site

Verify that the facility can supply a NEMA L5-30P receptacle on a dedicated 30A circuit for the input cord. Confirm the 2U rack space or tower clearance and that ambient temperature stays within 32 to 104 °F for operation. Ensure the connected load does not exceed 2700W and that the 8.9-minute full-load or 20-minute half-load runtime meets your shutdown window. A USB port is available for management integration.

Highlights

  • Lithium-ion cells deliver a 10-year design life for fewer replacements
  • 2U rack or tower form factor fits standard enclosures without extra hardware
  • Hot-swappable battery modules let you change cells without powering down connected equipment
  • 20 minutes runtime at half load keeps critical systems running during short outages
  • USB port enables direct monitoring and graceful shutdown from a single management station

Specifications

BrandLiebert
SeriesPSI5
ModelPSI5-3000RT120LI
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 L5-30P
VA Rating3000VA
Watts2700W
Output Voltage120 VAC Default; 100/110/115/125 VAC User Selectable
Outlets7
Outlet Type1 x NEMA L5-30R, 6 x NEMA 5-20R
Battery TypeLithium Ion
Battery Run TimeFull load: 8.9 min
Half load: 20.0 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
FeaturesLITHIUM-ION BATTERIES: Lithium-ion batteries last twice as long as traditional VRLA batteries, or longer.
LOW TOTAL COST OF OWNERSHIP: Fewer or no battery replacement over the life of the Vertiv Liebert PSI5 Lithium-Ion UPS.
LONGER RUNTIME: This 3000 VA UPS offers up to 8.9 minutes of runtime at full-load and 20 minutes at half-load.
FASTER RECHARGES: Get 100% capacity by recharging in 3 hours or less in this rack/tower UPS.
Dimensions3.38" x 17.24" x 24.8"
Weight53.6 lbs.
Shipping weight30.80 kg
Package size780 × 575 × 265 mm

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Questions about this item

Which output voltage should I select for my equipment — 100, 110, 115, 120 or 125 VAC?

The UPS defaults to 120 VAC; use the front panel or management software to match the exact voltage your connected devices require.

What does the 2700 W rating mean for the gear I can actually plug in?

You can draw up to 2700 W continuously; at that load the lithium-ion battery provides 8.9 minutes of runtime, and at half load it provides 20.0 minutes.

What does the USB port let me do in practice?

The USB port enables monitoring and graceful shutdown via Vertiv software or built-in OS drivers, and it supports firmware updates.

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