Emerson Liebert Power Solutions - Manual (Page 23)

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Cutting-Edge Power Technology
Makes The Difference
Liebert NX UPS Systems Incorporate A
Number Of Other Exceptional
Features:
■ High overload rating handles 125% for 10
minutes, 150% for one minute and a 1000%
overload for 10 milliseconds
■ Digital controls provide the fastest possible power
management to enhance reliability, accuracy and
efficiency
■ Front access for easy installation and servicing of
unit
■ Compact footprint requires less floor space,
leaving you with more room for other equipment
■ Redundancy options
■ Modules designed to share load based on percent
rating
■ Load Bus Synchronization standard on models
with Softscale technology
■ Soft Switching technology increases efficiency by
up to 2% and saves energy
■ Integrated ground fault detection allows for
effective transformer-less design while saving
space and lowering the weight
■ Parallel for redundancy or capacity
■ Parallel like or unlike capacity units for wider
growth range (requires Softscale technology)
■ Active input rectifier is generator and utility
friendly
■ Web card monitoring standard
■ Start up standard
■ One year warranty
■ One year remote monitoring/reporting
Softscale ™ technology, paralleling capabilities and Eco-mode ™ , all
contribute to lower initial, incremental and operating costs.
Liebert NX 40-120 kVA UPS Systems
Softscale Technology
Liebert NX 40-120 kVA UPS systems are available with Liebert
Softscale technology that provides flexibility to increase UPS capacity
by 20 or 40kVA without changes in your infrastructure. Allows
paralleling of unlike-sized models for capacity or redundancy.
Designed for optimized performance with the same high efficiency at
40% utilization as at 100% utilization.
Paralleling Capabilities
Liebert NX 40-120 kVA systems allow you to parallel UPS modules for
capacity and redundancy, eliminating the batteries as a single point
of failure because each UPS has its own isolated battery. Liebert NX
also features integrated dual bus synchronization as a standard
feature on models with Softscale technology. This provides the
capability to synchronize the outputs of two independent UPS
modules when they are configured as a redundant system feeding
independent distribution paths.
Eco-Mode High Efficiency Configuration
To save energy, this operating mode switches the UPS to static bypass
during normal operation. When power problems are detected the
UPS automatically switches back to double conversion mode.
Liebert NX Maintenance Bypass And
Distribution Cabinet
The optional Liebert NX Maintenance Bypass and Distribution Cabinet
converts the UPS system’s 480VAC output to 208/120VAC. This
cabinet is available in capacities of 75kW and 125kW covering the
Liebert NX UPS range of 40-120kVA. The front and back door panels
and the on-unit monitor panel are matched to the UPS unit. Power
and control cabling from this cabinet to the UPS is included,
enhancing ease of installation and availability. For ease of installation
and maintenance, the cabinet offers top or bottom cable entry and
requires only front and back.
Paralleling
Cabinet Battery
Cabinet
UPS