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Rectangular black 2U rack-tower UPS with rotatable LCD front panel

Vertiv

Vertiv PSI5-800RT120 800VA 720W 120V UPS

SKU CH-T2MZ-E2HFH MPN PSI5-800RT120

Rack/tower UPS delivers 800VA/720W pure sine-wave output with AVR, rotatable LCD, programmable outlets and 5.5-minute full-load runtime

  • International Version120V
  • Input Voltage Range75-146VAC
  • Input Frequency55~65Hz (57~63Hz Battery to Normal comeback)
  • Input ConnectionNEMA 5-15
  • VA Rating800VA
  • Watts720W

Option PSI5-800RT120

  • PSI5-1100MT120
  • PSI5-1100RT120
  • PSI5-1500MT120
  • PSI5-1500RM1201U
  • PSI5-1500RT120
  • PSI5-2200RT120
  • PSI5-3000RT120
  • PSI5-5000RT208
  • PSI5-750MT120
  • PSI5-800RT120
  • PSI5-800RT120N

Struck-through versions exist but are not stocked here.

  • 9 power factor supports modern active-PFC power supplies
  • 800 VA 720 W capacity protects servers and networking gear
  • Rotatable LCD gives clear status in rack or tower
  • 1372-joule surge rating shields connected equipment from spikes
  • User-programmable outlet group enables load-shedding during outages

Purpose & Audience

The Vertiv PSI5-800RT120 is a line-interactive UPS rated at 800VA and 720W with a 0.9 power factor. It delivers pure sine wave output on battery and includes automatic voltage regulation across a 75-146VAC input window. The unit suits network closets, edge sites, workstations and gaming systems that need orderly shutdown during outages.

Deciding Specification

The critical figure is the 720W real-power rating; connected equipment must not exceed this load. Six NEMA 5-15R receptacles are provided, with one programmable outlet group for load shedding. Input connects via a NEMA 5-15 plug and the output voltage can be set to 100, 110, 115, 120 or 125VAC.

Thermals, Noise & Power

Operating temperature range is 32-104°F (0-40°C) and the unit meets UL 1778 safety standards. A rotating LCD panel reports status in both tower and 2U rack orientations. The VRLA battery pack recharges to 90 percent in four hours and is user-replaceable using the PSI5-24VBATT kit.

Highlights

  • 9 power factor supports modern active-PFC power supplies
  • 800 VA 720 W capacity protects servers and networking gear
  • Rotatable LCD gives clear status in rack or tower
  • 1372-joule surge rating shields connected equipment from spikes
  • User-programmable outlet group enables load-shedding during outages

Specifications

BrandLiebert
SeriesPSI5
ModelPSI5-800RT120
International Version120V
Input Voltage Range75-146VAC
Input Frequency55~65Hz (57~63Hz Battery to Normal comeback)
Input ConnectionNEMA 5-15
VA Rating800VA
Watts720W
Output Voltage120VAC (100/110/115/125VAC user-configurable)
Outlets6
Outlet Type6 x NEMA 5-15R
Battery TypeValve Regulated Lead Acid (VRLA)
Battery Run TimeFull Load: 5.5 min
Half Load: 16.0 min
Battery Recharge Time4 hours to recover 90%
Battery ReplaceablePSI5-24VBATT
ApprovalsUL 1778, c-UL-us Listed
Rackmountable2U Rack/Tower
Surge Energy Rating1372 Joules
TemperatureOperating Temperature: 32°-104°F (0°-40°C)
Storage Temperature: 5°-120°F (-15° - 50°C)
Humidity20% to 90% non-condensing
Dimensions3.5" x 17.2" x 16.1"
Weight28.4 lbs.
Shipping weight14.61 kg
Package size582 × 551 × 259 mm

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Questions about this item

How much real power does the 800VA rating deliver to my equipment?

The unit supplies up to 720 watts at a 0.9 power factor, so active-PFC power supplies and other loads can draw their full rated wattage within that limit.

What input plug and voltage window does the UPS accept?

It connects via a NEMA 5-15 plug and operates from 75 to 146 VAC at 55 to 65 Hz, automatically regulating voltage without using battery power.

What physical space and weight should I plan for when mounting it?

The 2U rack/tower chassis weighs about 28.40 lb and fits a standard 2U rack opening; the rotating LCD lets you read the display in either orientation.

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