Specifications

Liebert APM
™ 
On-line UPS with FlexPower Technology:
15-90kVA, 3-phase
The cost-efficient Liebert APM provides 
the reliability of an enterprise UPS, and 
the flexibility to adapt to increasing power 
demands. This is a true, best-in-class solution 
from the leader in power and cooling solutions 
for computer rooms and data centers. Key 
features and benefits include:
  Up to 94% efficiency — High efficiency results 
in lower energy consumption
  Front service access — for quick and easy 
installation
  Transformer-free design — provides a 
smaller footprint and lower cost compared to 
transformer-based systems
  Matching bypass and distribution cabinet 
— increase reliability and safety by switching 
the protected load to bypass power for 
maintenance and service
  Matching battery cabinets — provides added 
back-up capacity for extended runtimes
  Distributed controls — each FlexPower core 
assembly includes DSP controls, minimizing 
possibility of single point of failure
  Standalone static bypass module — features 
independent controls in separate assembly to 
provide higher reliability
  Top or bottom cable entry — enables 
installation on raised or non-raised floors
  Large dot-matrix monitor with graphical 
display — allows easy viewing and 
comprehensive system information Includes 
three Liebert
  IntelliSlot ports for web-based 
communications ability — Liebert IntelliSlot 
card IS-485EXI allows communication with 
Liebert SiteScan; Liebert IntelliSlot card 
IS-WEBL allows communication with Liebert 
Nform (90 day license included)
  One-year warranty — provides full system 
coverage for one year
Liebert APM is a transformer-free, 
on-line UPS that allows quick and easy 
capacity increases with the addition of 
rack-mounted FlexPower™ core hardware 
assemblies. The core assemblies allow 
the UPS to expand for capacity or 
redundancy in 15kW increments within a 
single cabinet — 15kW to 45kW or 90kW. 
No additional floorspace is required. 
FlexPower core assemblies may even be 
added without powering down connected 
equipment. 
On-line double-conversion technology 
and internal redundancy combine to 
provide protection from the full range of 
power irregularities, offering the highest 
availability.
With efficiencies of up to 94% at typical 
load levels, Liebert APM offers one of the 
industry’s highest efficiency ratings. The 
UPS is even more efficient when sized in 
accordance with present system needs, 
instead of purchasing a larger capacity 
system to anticipate future requirements.
Liebert APM BDC, Liebert APM 90 kW FlexPower Core, 
and Liebert APM External Battery Cabinet
30
DISCONTINUED 
PRO DU C T










