Emerson 400 kVA Fascicule

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AC Power
For Business-Critical Continuity™
Liebert
®
NXL
UPS
250, 300, 400 kVA Single Module
High Availability UPS for Medium & Large Data Centers
Flexibility
Liebert NXL is designed for flexibility in 
application, installation, operation, and 
maintenance:
• Matching battery and maintenance bypass 
cabinets for easy configuration. 
•Top or bottom cable entry.
•Internal cabinet cable wiring simplifies 
installation.
•Ship-ahead I/O section can be installed  
before UPS installation. 
Higher Availability
Availability is a primary consideration in any 
UPS selection.  Liebert NXL is inherently 
reliable:
•Liebert ActiveStar
®
Digital Signal Processor 
(DSP) controls – no potentiometers. 
•Redundant components – fans, power 
supplies, communications cards.
•Provides superior handling of present and 
future computer loads, up to 0.95 leading 
power factor without derating. 
•High input fault current capability . 
•Color touch screen controls improve user 
interface and reduce risk of human error.
•Excellent dynamic performance.
•Generator and utility friendly with low 
current distortion.
Lowest Total Cost of Ownership
Liebert NXL addresses ownership costs with 
intelligent design and operating efficiency: 
•Front access for installation and service. 
•Compact cabinets require less floorspace.
•Improved cable access results in faster 
installation.
•Inter-cabinet cabling requires less  hard 
wiring.
•Built-in battery cabinet breaker isolates 
string for ease of service. 
•94% operating efficiency.
The industry’s most  reliable power protection and advanced 
technology has been combined into a new generation of 
three-phase UPS systems for high power applications — the 
Liebert NXL from Emerson Network Power.
The Liebert NXL provides excellent dynamic performance, 
with the ability to handle virtually any input condition while 
still providing computer grade output to critical loads. 
The leader in large UPS system installations, Emerson offers 
complete and unequalled support, including engineering 
consultation, the largest and most wide-spread factory-
trained service organization, and the industry’s largest and 
most advanced production and  witness test facility.
Ideally Suited For:
•Enterprise data centers
•Industrial process equipment
•Laboratories
•Any application requiring high  
levels of power availability and 
computer-grade power quality