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Liebert EXL S1 500-600 kVA/kW

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The Liebert EXL S1 is a monolithic, transformer-free UPS that features optimized, industry leading footprint and power per square foot, excellent operating efficiency, robust electrical protection and intelligent paralleling that optimizes performance at partial load to achieve superior cost savings. Available in single module and distributed bypass configurations. Compatible with lithium ion battery systems.


  • Smallest footprint among all competitors at this kVA size
  • Three modes of operating efficiency, Double Conversion (97%), Dynamic Online (99%) and ECO Mode (99%)
  • Advanced touchscreen control panel
  • Lithium ion battery compatible
  • Up to 8 units can be paralleled
  • Intelligent paralleling option
  • High Impedance DC Ground Fault detection for 2014 NEC compliance
  • Dual asynchronous source / dual input capable


  • Allows more space for revenue generating I.T. equipment by minimizing UPS footprint
  • Maximizes active power at unity power factor
  • Reduces operating expenses
  • Installation flexibility
  • Reduces total cost of ownership
  • Zero impact on upstream infrastructure
  • Compatible with modern mission critical loads
  • Delivers proactive remote services

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