Liebert NXL

Liebert NXL 400 – 800kVA

Liebert NXL uninterruptible power supply (UPS) provides reliable data center power protection and advanced technology for high power applications. This UPS adds dynamic performance to data center design, handling virtually any input condition while still providing computer-grade output to critical loads.

Product Description

The Liebert NXL UPS is available in both single module and multi-module systems. Capacities include 250, 300, 400, 500, 625, 750, and 1100 kVA unit ratings. Unity PF as well as 0.9 PF load ratings are available. Voltages include 480, 575, and 600. Matching battery cabinets and maintenance bypass cabinets provide a complete power protection solution. For the current available ratings contact your Liebert UPS representative.

Liebert NXL battery cabinets are available with factory-integrated Alber BDSi battery monitoring. This factory installed and tested system continuously monitors and diagnoses battery parameters. The reporting function keeps data center personnel informed of battery health, and allows proactive battery replacement at the right time — not prematurely or after a cell failure. Battery monitoring may also be managed by Liebert Services, ensuring proper, timely maintenance by local, trained Customer Engineers.


  • UPS protection for medium and large facilities
  • Single module system with latest generation technology
  • Color touch-screen controls
  • Matching battery cabinets and maintenance bypass cabinet



  • 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

  • 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

  • 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
  • Up to 98% operating efficiency in Intelligent Eco-Mode operation. Up to 94% operating efficiency in double conversion mode.

Ideally Suited For

  • Enterprise data centers
  • Industrial process equipment
  • Laboratories
  • Any application requiring high levels of power availability and computer-grade power quality