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Rack-mountable UPS with rotating LCD display, dark metal finish, 41.55 weight

Emerson Network Power

Emerson Network Power PSI51500RT120LI 1500VA/1350W 120V UPS

SKU CH-N1JK-E1RZZ

Lithium-ion UPS delivering 1500VA/1350W with 17.7 minutes runtime at half load and 7.5 minutes at full load

  • Weight41.55
  • Lithium-Ion battery lasts more than double VRLA life
  • 1500 VA / 1350 W pure sine wave output
  • 7 min runtime at half load, 7.5 min at full load
  • Rotating LCD works in rack or tower orientation
  • Automatic voltage regulation extends battery life further

Vertiv Liebert PSI5 1500VA UPS

The Vertiv Liebert PSI5 is a 1500VA line-interactive UPS with a 1350W capacity designed for 120V environments. It uses lithium-ion batteries to deliver more than double the service life of traditional VRLA units. Pure sine wave output on battery protects sensitive servers and networking gear at the edge or in distributed IT sites.

Automatic voltage regulation and LCD

Built-in automatic voltage regulation corrects brownouts and over-voltages without draining the battery, extending overall runtime. The rotating LCD display lets operators read status in either rack or tower orientation. Optional communication cards and sensors add remote management and environmental monitoring when installed.

Rack or tower installation

The unit weighs 41.55 and fits standard racks or stands upright as a tower, so physical mounting is straightforward. Runtime measures 17.7 minutes at half load and 7.5 minutes at full load, giving enough window for orderly shutdown. Buyers needing longer runtime at full load or non-120V input should evaluate other form factors.

Highlights

  • Lithium-Ion battery lasts more than double VRLA life
  • 1500 VA / 1350 W pure sine wave output
  • 7 min runtime at half load, 7.5 min at full load
  • Rotating LCD works in rack or tower orientation
  • Automatic voltage regulation extends battery life further

Specifications

BrandLiebert
Weight41.55

Questions about this item

How often will the lithium-ion battery pack need replacement compared to a VRLA unit?

The lithium-ion battery delivers more than double the service life of a traditional VRLA UPS, reducing replacement frequency to roughly once every eight to ten years under normal conditions.

What is the first limit reached when the UPS runs at full 1350 W output continuously?

Battery runtime becomes the limiting factor first, providing 7.5 minutes at full load before an orderly shutdown is required.

How much heat and fan noise should I expect from the 41.55 lb unit during all-day operation?

The line-interactive design with automatic voltage regulation keeps internal temperatures low, so fan activity stays minimal and audible noise remains at typical office background levels.

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