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Liebert PSI
High Performance Power Protection for Servers and Networking Equipment
750VA to 3kVA
AC Power
for Business-Critical Continuity™
Liebert PSI is a feature-rich UPS system with industry leading 0.9 power factor. Its high power output delivers superior performance
on power factor corrected (PFC) power supply and satisfactory backup time in the high demand environment. Liebert Multilink UPS
software protects servers through local USB communication or via network. Matching external battery cabinets offer UPS backup time to
several hours in the extended requirements (for Liebert PSI-XR models only).
Features
The Liebert PSI Is Ideally Suited For:
Network Computers 
Servers 
Network Closets 
Computer Rooms 
Large Network Peripherals 
Network Storage Devices 
Lowest Total Cost of Ownership
Operates at a high 0.9 power factor that makes it ideal 
for today’s modern IT equipment, providing 29% more
power than typical UPS
Reduced installation time and costs - shipped with 
batteries connected and charged
Two-year warranty - no-hassle replacement 
Supports Liebert Multilink shutdown software 
Higher Availability
Greater than  three to fi ve minutes of internal battery
backup time at 100% load provides ample time for an
orderly shutdown of equipment.
Buck/boost automatic voltage regulation technology 
protects against utility voltage fl uctuation by raising
and lowering utility power to the level needed by
connected equipment
Flexibility
Eight to nine battery-backed outlets  for Liebert PSI
models, six to sever battery-backed outlets for Liebert
PSI-XR models
User replaceable and hot-swappable batteries 
Rack/Tower Convertible with rotatable display panel, 
2U in height on all models
Multiple remote communications and shutdown 
options provide remote monitoring and power
management - EB/ SNMP, USB, contact closure and
remote power off
Bringing our Enterprise Level IT Expertise to your SMB
Emerson Network Power offers a full range of power protection solutions suitable for every requirement or scenario. From desktop
computing, network equipment, computer rooms to large scale data centers, we make sure you get the same level of protection the
Fortune 500 companies enjoy with Emerson. It is our way of Bringing Enterprise Level IT expertise to your SMB.
Liebert PSP
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Liebert PSA 
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Liebert GXT 
Liebert ITA 
Data Center
Liebert ITA 
Liebert NX 
Liebert Hipulse 
Desktop
Computing
Network /
Computer Room