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Specifications

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Optimized Performance
Intelligent Eco-Mode™ — Liebert NXL offers up to 97%
full load efficiency during user-selectable Intelligent
Eco-Mode™ operation. The always-on inverter ensures
high availability and seamlessly assumes the load in case
of a utility power disturbance.
Intelligent Paralleling™ — Modules paralleled with
a system control cabinet (N+1 configuration) may be
customer selected to use Intelligent Paralleling, which
increases efficiency by turning off redundant modules.
Off time is equally distributed between all modules.
Optimized Battery Runtime — Battery capacity and
Liebert NXL module load are proportionally balanced
during a utility outage, extending battery run time.
Configuration Options
Single-Module Configuration (250-750kVA models)
Single-module systems provide a basic protection
configuration.
The critical bus is powered by a single UPS system
with bypass capability.
1+N Parallel Configuration (250-750kVA models)
Paralleling of single UPS units, offers easy scalability
for increased capacity or redundancy
Each unit has its own static switch for bypass
Provides redundant capacity without the need for a
system control cabinet
N+1 Parallel Configuration (750kVA models)
Paralleling of Multi Module units, without built-in
static switch
Requires System Control Cabinet with centralized
static switch
System Control Cabinet can be easily integrated into
any switchgear solution
System rated static switch with bypass breaker offers
high fault clearing capability, and high availability
Centralized monitoring allows good visibility and
easy control of total system
Up to six units may be used together for capacity/
redundancy
Liebert Power Monitoring Capabilities
The operation of the Liebert NXL UPS can be monitored using:
Liebert MultiLink
®
Automated System Shutdown Software.
Liebert Nform
™
Monitoring System.
Liebert SiteScan
®
Web Centralized Monitoring System.
Liebert Universal Monitor and Remote Power Monitor Panels.
Third-Party Monitoring Systems.
Four Liebert IntelliSlot ports. Ships with standard 485 Liebert
SiteScan Web interface.
Albér BDSi Integrated Battery Monitoring System.
For more information, see pages 44 and 45.
Liebert NXL N+1 Multi-Module System One-Line (750 kVA)
Centralized Static Switch
Rectifier
Static Switch
Bypass
AC Input
Bypass
Output
Critical Bus
AC Output
Rectifier
AC Input
Battery
Inverter
Rectifier
Static Switch
Bypass
AC Input
AC Output
to Load
Rectifier
AC Input
Battery
Inverter
Rectifier
Static
Switch
Bypass
AC Input
Rectifier
AC Input
Battery
Inverter
Rectifier
Static
Switch
Bypass
AC Input
Rectifier
AC Input
Battery
Inverter
AC Input
UPS Output
Breaker
AC Output
To Load
System
Bypass
Breaker
Rectifier
Static
Switch
Bypass
AC Input
Rectifier
AC Input
Battery
Inverter
AC Input
Rectifier
Rectifier
AC Input
Battery
Inverter
UPS Output
Breaker
AC Output
To Load
System
Bypass
Breaker
Rectifier
Static Switch
Bypass
AC Input
Bypass
Output
Critical Bus
AC Output
Rectifier
AC Input
Battery
Inverter
Rectifier
Static Switch
Bypass
AC Input
AC Output
to Load
Rectifier
AC Input
Battery
Inverter
Rectifier
Static
Switch
Bypass
AC Input
Rectifier
AC Input
Battery
Inverter
Rectifier
Static
Switch
Bypass
AC Input
Rectifier
AC Input
Battery
Inverter
AC Input
UPS Output
Breaker
AC Output
To Load
System
Bypass
Breaker
Rectifier
Static
Switch
Bypass
AC Input
Rectifier
AC Input
Battery
Inverter
AC Input
Rectifier
Rectifier
AC Input
Battery
Inverter
UPS Output
Breaker
AC Output
To Load
System
Bypass
Breaker
Liebert NXL Single Module System One-Line (250-750 kVA)
Liebert NXL 1+N Multi-Module System One-Line (250-750kVA)
Distributed Static Switch
Enterprise UPS
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