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  • Liebert NXr UPS Brochure 

  • Liebert NXr Specifications Guide

  • Liebert Power Solutions Overview


Liebert NXr UPS

Emerson Network Power


The Liebert NXr from Emerson Network Power presents an efficient, space saving and flexible solution for your network.

With an above industry standard efficiency rate of up to 96% in a compact, low footprint UPS, Liebert NXr keeps your network protected while saving on cost and data center space.

With best in class true online double conversion technology, redundancy options and flexible battery configurations, trust the Liebert NXr to provide the same level of reliability you have come to expect from the Liebert NX UPS series.

Features and Benefits
  • High efficiency rating of up to 96% on true online double conversion mode.
  • High power density with 160kVA load in <0.5m2 footprint.
  • Advanced digital signal processor (DSP) and digital control technology to ensure higher system reliability.
  • Parallel technology allowing four (4) parallel units, without the need for centralized bypass cabinet and additonal external modules.
  • Digital current sharing technology for extremely small circulating current and high parallel reliability.
  • Wide input voltage and frequency range against harsh utility environment.
  • Powerful output overload and short circuit capacity enhancing system stability and system safety under extreme conditions.
  • Intelligent battery management for automatic battery maintenance and prolonged battery life.
  • 6-inch LCD display available in 12 different languages.
  • Layered independent sealed duct and redundant fan design, circuit board painting protection and dust fi lter, offering outstanding protection from harsh environment.
  • Advanced monitoring and communication capabilities for improved visibility and control.
  • Lower mean time to repair (MTTR) with front access for maintenance.
  • Flexible UPS system confi guration that works in different modes of operation.

FAQ - Frequently Asked Questions

How can I get the most out of my investment?
  • Liebert NXr, with its unity power factor (kVA=kW), offers more real power to support customer’s mission critical loads.
  • With up to 96% online double conversion effi ciency, Liebert NXr saves you operating cost compared to most traditional UPS in the market.

How can I get optimum protection for my network with Liebert NXr?

  • The double conversion technology of Liebert NXr allows it to have an above average industry standard of up to 96% efficiency, giving your network and data center equipment full protection at the most efficient rate.

How can I save floorspace with Liebert NXr?

  • Liebert NXr is a compact UPS with low footprint.
  • A 160kVA Liebert NXr UPS can be installed in less than 0.5m2 space.

How can i get the highest levels of Protection and Availability?

  • Liebert NXr gives you built-in reliability with its stratified cooling technology allowing cooling of critical components and redundant cooling fan option.
  • Wider input voltage and frequency tolerances contribute to high power availability.
  • Digital controls provide the fastest possible power management to enhance reliability, accuracy and efficiency while reducing component count.
  • Dual bus compatibility and system redundancy further enhance the availability of a power.
  • High overload protection handles 110% overload for 60 minutes, 125% for 10 minutes, and 150% for 1 minute.

How can I save on my electricity bill and investment costs?

  • The improved input power factor of the Liebert NXr can actually reduce your electricity usage.
  • It delivers the highest possible input power factor - greater than 0.99 at rated linear and non-linear loads - for maximum efficiency.
  • The unique ability of the Liebert NXr to adjust power walk-in from 5 seconds to 30 seconds, along with reduced input current distortion and power factor correction, also enables you to save money by reducing back-up generator sizing requirement.
  • The unit’s compact footprint requires less floor space, leaving you with more room for other equipment.
  • Liebert NXr has built in Parallel and Load Bus Synchronization (LBS) boards. No extra hardware is needed, it may be easily connected just with control cables.

How can I satisfy the requirements of the latest servers?

  • Liebert NXr is capable of driving wide ranges of loads, from 0.5 lagging to 0.9 leading. This makes the UPS follow the latest IT industry trends, with more active power available for all kinds of loads.

How can I also protect also my upstream-connected devices?

  • The Liebert NXr provides the cleanest level of upstream power with the lowest level of input current THDi in the industry.
  • This ensures that clean power flows upstream, avoiding damage to other loads connected to the upstream power distribution bus.

How can I extend the system when I need more power?

  • Liebert NXr features easy and simple scalability and redundancy. In fact, up to four Liebert NXr modules may be paralleled in a redundant configuration for added reliability and serviceability.
  • The Liebert NXr is compatible with Liebert ‘s unique LBS.

How can I ensure the UPS will work under the most severe conditions?

  • The wide input voltage window of 305V-477V and a frequency tolerance of 40Hz to 70Hz provide high quality power, even when input parameters are below standard. This helps minimize transfer to battery, reducing the charging and discharging cycles.
  • Back-feed protection sensing ensures system integrity.
  • Short-circuit-proof, DSP controlled inverter provides highest output power quality.

How can I easily maintain my UPS?

  • Liebert NXr includes a built-in maintenance bypass, with IP 20 UPS enclosure protection - even with the front doors open.
  • Redundant configuration allows you to utilize one module while the other is being serviced.
  • Dual bus compatibility enables you to transfer the load to an alternate power source for maintenanceactivities.

How can I monitor and communicate with my UPS?

  • To meet a variety of needs, the Liebert NXr offers communications through web or management systems through MODbus and SNMP communication protocol.

How can I check the status of my UPS?

  • The Liebert NXr features easy access for service. Thanks to front accessibility of critical components, self-diagnostics and various monitoring options.
  • Large and user-friendly LCD display provides operating information in twelve different languages.

How can I satisfy my particular installation needs?

  • Flexibility is achieved through many choices including type of battery, number of single and multi-unit configurations, and an array of internal and external power and communication options.
  • Auto restart capability provides added availability.
  • Ultra-quiet performance with noise levels below 55dBA allows greater latitude in where to place the unit.
  • Adjustable power walk-in, numerous user specifi ed settings, a choice of power monitoring communications alternatives and user friendly control are all handled through the menudriven LCD control panel with detailed data reporting.
  • Emerson Network Power is recognized to be a great solution provider. Please contact your local Emerson Network Power office or Liebert representative to receive special solution consultancy.

How can I protect and extend the life of my batteries?

  • Liebert NXr minimizes transfers to batteries with its wide input voltage tolerance down to 305V.
  • Temperature-compensated battery charging extends battery life.

Technical Specifications


Six Questions to Ask When Implementing a Data Center Infrastructure Management (DCIM) Solution

Data center managers have been challenged to maintain or increase IT availability, server utilization and efficiency in the face of rising costs and demands. One strategy to help address these challenges is virtualization, which increases server utilization and enables greater energy efficiency.

But virtualization also makes it more difficult to predict the demand on physical systems at any given time. As a result of the uncertainty in physical system demand, the data center manager is compelled to reserve a resource buffer against overload at peak capacity.

A holistic DCIM approach provides new insights into the relationships between facilities and IT infrastructure components, enabling data center managers to better optimize their data center resource consumption.

These are the questions Emerson Network Power recommends data center managers ask before deploying a DCIM solution:

1. What are the critical infrastructure assets in my data center and what are their respective mission interdependencies? An inventory repository can provide the data center manager with a “reality check” of today’s high-value assets, as well as context in the data center plan for tomorrow. This forward-looking insight gives a continual business-oriented view into these critical assets allowing better return-on-investment (ROI) on assets as well as freeing up data center budget for other compelling priorities—a top of mind concern for data center managers.

2. If asked by my management, could I quickly retrieve a comprehensive monitoring and analysis report of all the assets in my data center, and would this report identify bottlenecks? An effective DCIM solution should monitor all space, power and cooling attributes within the data center environment. To avoid an environmental-based operational failure, the DCIM solution should provide reports that enable the data center manager to take proactive action. The ability to report these data center conditions should be available on-demand to the data center manager.

3. Can my data center manage day-to-day workloads with flexibility while servicing on-demand needs as they arrive for my company? The DCIM solution should provide process workflow that can perform:

  • Scenario development—the ability to model changes before they go into production,
  • Nested processes that list steps that must be completed before an action is approved,
  • Measurement against service level agreements (SLAs), which are standard or custom metrics for measuring success, and 
  • The ability to provision into underutilized space, power and cooling capacity. This function should recommend optimal placement for devices based on their unique requirements and the existing load/capacity in the infrastructure.

4. Does this DCIM solution provide the trend analysis and intelligence needed for my team to deliver a comprehensive capacity management plan? To gain control of the current and future usage of data center resources, DCIM solutions should provide data center managers with insight into: 

  • Projection pipelines—what projects are in various stages of approval and what the impact will be on the infrastructure, and 
  • Trending for current and projected utilization (curves based on historical usage). For example, data center management should be able to tell when capacity or cooling will run out, based on utilization trends.

5. What intuitive web-based executive summary and planning tools are provided in the solution? DCIM solutions should provide configurable web-based dashboards and analytics standard within the product. Automating the operational intelligence gathering and reporting through a comprehensive web-based dashboard enables an executive summary that becomes the single source of truth into DCIM and planning. 

6. Will the DCIM solution align with IT and business services? Aligning IT service to address business objectives and needs is paramount. Any DCIM solution must enable data center management to align their respective resource consumption with their current ITSM, ITIL and BSM strategies.

“Data center managers are under more pressure than ever to achieve higher capacities with greater efficiency and less risk of downtime,” said Steve Hassell, president of the Avocent business of Emerson Network Power.“

A holistic DCIM strategy is a data center manager’s best partner in meeting the stringent business demands in a modern-day data center environment.

To successfully implement a DCIM strategy, data center managers must be on the lookout for the best family of hardware, software and services that allows them to address the critical infrastructure gap

Documentation & Downloads

Which UPS is right for you? - Click the banner to proceed.

  • Liebert NXr UPS Brochure 

  • Liebert NXr Specifications Guide

  • Liebert Power Solutions Overview

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