Computer Power Protection - Powering UK Businesses Since 1988
Powering UK Businesses Since 1988
08000 321 711

Liebert APS On-Line UPS, 5-20 kVA

Liebert APS On-Line UPS, 5-20 kVA

The Liebert APS is a modular, single phase output UPS, with both single and three phase input options, designed for the protection of IT equipment such as workstations, servers and networks, as well as telecommunications-related applications.

The Liebert APS adapts efficiently and effectively to both immediate and evolving power requirements, offering capacity on demand with FlexPower modules which allow capacity upgrades in 5 kVA/4.5kW increments up to 20 kVA.

Liebert APS On-Line UPS, 5-20 kVA Information


  • True on-line double conversion UPS
  • Hot-swappable power and battery modules
  • 5 kVA / 4.5 kW power modules
  • Site configurable as single phase or three phase input
  • Scalable up to 20 kVA plus 10 kVA of redundancy
  • Fully rated @ 40°C
  • Stand alone or rack mountable
  • Intelligent battery modules with automatic offline capability for anomalous events
  • Double conversion efficiency: 92%
  • Optional 10 A charger module
  • Terminal block or output socket



Total Cost of Ownership

  • 5 kVA/4.5 kW power modules deliver enhanced active power when compared to UPS of equal size in both standard and extended autonomy configurations
  • Class-leading  double conversion efficiency: 92%
  • Scalable architecture designed to adapt to growing power requirements, optimizing initial investment and pay as you grow benefits 
  • Battery protection - integral battery monitoring and temperature compensated charging for extended battery life and  replacement minimization

Availability and Serviceability

  • Full redundant design allows the critical load to run on conditioned power in the unlikely event of component failure.
  • Hot-swappable power, control and battery modules allow replacement to be carried out while remaining modules continue to power the load.
  • Intelligent Battery System provides continuous battery monitoring, automatically taking anomalous batteries off-line to ensure the continued performance of remaining strings.
  • Liebert APS is enabled with Emerson’s LIFE™ remote diagnostic and real-time communication technology, which provides proactive maintenance, decreasing the average Mean Time to Repair (MTTR) and maximizing  uptime.


  • Upgradeable while working in double conversion
  • Configurable input: one or three phase
  • Designed for standalone or rack mount installation
  • Multiple optional Power Output Distribution (POD) boxes available to meet specific application connection requirements

Ideally Suited For

  • Small-to-medium-sized data centers
  • Network closets
  • VoIP
  • Scalable storage systems

Price Promise

We always aim to be competitive and will look to beat any existing quotation you may have.

Please email or call us today.
08000 321 711
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