Liebert NX On-Line UPS, 40-200kVA


Liebert NX On-Line UPS, 40-200kVA

Liebert NX uninterruptible power supply (UPS) with Softscale technology is a true on-line, double conversion, three-phase UPS system that provides a scalable solution to optimize data center power design. Uninterruptible power can grow from 40 to 60 to 80kVA, from 80 to 100 to 120kVA, and from 160 to 200kVA. The UPS may also be paralleled for additional data center infrastructure capacity or for redundant operation.

The 480-volt, three-phase Liebert NX is available in both scalable and standard models:

  • Liebert NX with Softscale™ technology is a full-featured UPS available in scalable models: 40 to 60 to 80kVA, and 80 to 100 to 120kVA, and 160 to 200kVA. Up to three unlike or like capacities may be paralleled for capacity; up to four unlike or like capacities may be paralleled for redundancy.
  • Liebert NX fixed capacity models are available in 40, 60, 80, 100 and 120, 160 and 200 kVA.
  • Scalable UPS protection for growing data centers
  • Offers models with capacity growth without increasing footprint
  • Allows parallel configurations for capacity or redundancy
  • Operates with up to 97% energy efficiency


  • Provides an economical path for growth, with Softscale technology.
  • Allows paralleling of unlike capacities for capacity or redundancy.
  • Offers a large and user-friendly LCD display with operating information in twelve languages.
  • Includes a built-in automatic bypass to transfer the load in case of fault.

Higher Availability

  • True on-line, double conversion technology corrects for all types of power fluctuations.
  • Provides the highest output power quality, with advanced inverter control technology.
  • Provides dual bus synchronization of two UPS units when feeding independent distribution paths.

Lowest Total Cost Of Ownership

  • Optimizes efficiency using soft-switching technology.
  • Extends battery life with temperature-compensated battery charging.
  • DSP control provides highest possible input power factor for maximum efficiency.

Ideally Suited For

  • Small to mid-size data centers
  • Server rooms
  • Production
  • Labs and testing
  • Telecommunications
  • Process control
  • Point of sale

What are the advantages of the Liebert NX with SoftScale compared to similar capacity UPS systems?

Here are some important differences:

  • Parallel units for added capacity as your needs grow.
  • Complete Power Conditioning — True online double conversion technology corrects all types of power fluctuations.
  • Save On Energy Usage — The Liebert NX offers improved efficiency up to 97%, which results in lower operating costs.

Efficiency Without Compromise®

Are there some real-life examples of efficiency with compromise?

Unfortunately, yes. With hourly downtime in the 5-6 digits, some firms have not hardened their environments properly, and lost significant revenue, profit and goodwill during computing outages that could have been prevented. Others have not yet fully realized the CAPEX savings from optimizing IT space, given $200-400/s.f. data center construction costs. Many firms do not manage ghost servers effectively, wasting space and energy. Others have struggled to deploy would-be energy-saving efforts that actually increased failure rates, and lead to greater problems.

Explain Infrastructure Management?

Infrastructure management pulls everything together by applying Emerson’s data center expertise with product and service offerings in monitoring and management solutions – including Liebert and Aperture. This leads to improved IT infrastructure performance and uptime.

Explain the High Density opportunity?

High-density environments house rack densities between 10-60kW. The escalation of rack and room densities has a direct correlation with efficiency: the higher the density, the greater the efficiency. Organizations that can increase density, while providing high availability, can operate at higher efficiency levels. They also increase the computing capacity of their current facility—avoiding or delaying the need for new data centers.

How do customers benefit by adopting the Efficiency Without Compromise approach?

Data center professionals will see benefits throughout the lifecycle of their facility by embracing the opportunities provided by Efficiency Without Compromise. Leveraging pre-engineered solutions and high-density architectures can reduce the time required for system deployment, as well as space and capital requirements. IT facilities can apply efficient technologies to reduce operational energy costs, and decrease downtime costs using high-availability configurations. Lastly, enhanced management and planning systems can streamline data center operations with comprehensive management controls, and lower long-term operational costs via proactive maintenance programs.

Is Efficiency Without Compromise a standard design?

Efficiency Without Compromise is not a set of rote recommendations, but instead involves four areas of opportunity within a data center infrastructure that directly impact efficiency and availability. Within each area, there are technologies that, when applied appropriately, can cut data center design and deployment time, reduce operating costs, and enhance management and planning success, all while maintaining or improving data center availability.

Is Efficiency Without Compromise just about products and saving energy?

No. Recent industry discussions focus almost exclusively on energy efficiency—neglecting the broader issues of a data center’s lifecycle. Efficiency Without Compromise is all about leveraging the benefits of Emerson’s expertise in design, operations and management to positively impact overall data center efficiency, while also enhancing availability. Energy savings is critical, but IT initiatives employing it must be balanced.

What are the four key elements?

Efficiency Without Compromise is achieved by capitalizing on one of more of the following:

  • Infrastructure management
  • High density
  • Flex capacity
  • Eco availability

What are the lifecycle phases of the data center?

Emerson Network Power empowers data center lifecycles, moving beyond operational energy improvements. Unique services, solutions and expert advice improve efficiency and ensures availability within three key phases:

  1. Design & Deployment
  2. Operations
  3. Management & Planning

What is Eco Availability?

Eco Availability is focused on achieving the right balance between availability and efficiency, particularly where efficiency-driven improvements could negatively impact IT business performance. Data center managers are challenged to implement an electrical scheme that achieves the highest possible efficiency while still delivering availability goals.

What is Efficiency Without Compromise?

Efficiency Without Compromise is a path to optimize data center infrastructure for design, operating and management efficiency while maintaining or improving—and not sacrificing—availability. This is achieved through the proper utilization of cooling, power and monitoring technologies in addition to key services.

What is the Flex Capacity opportunity?

Flex capacity encompasses solutions that efficiently allow a data center infrastructure to dynamically adapt to the IT environment. Technologies such as variable speed drives, digital scroll compressors, Softscale UPS scalability, and iCOM controls all enable enhanced levels of dynamic flexibility, in the quest to match reliable infrastructure systems to IT system loads.

Common FAQs

Local Liebert Representative
Contact your local Liebert NA Representative at your location.

Large Facilities UPS Products
Contact our support department about your Liebert large facility UPS system.

Sales, Service, and Support
Outside the US: +800-1155-4499

Contact Support

Data Center Assessment
Learn how to identify and resolve data center issues
Learn more