Emerson Network Power (Liebert) White Paper: Choosing the Right UPS for Small and Midsize Data Centers – A Cost and Reliability Comparison



A dependable uninterruptible power supply (UPS) system is essential to protecting data centers and server rooms from unplanned downtime and equipment damage.
This paper compares two UPS systems marketed for small and midsize data centers. These products represent
remarkably different design philosophies. The impact of these differing philosophies on reliability and cost of ownership is addressed. In addition, this paper addresses the following questions:

  • What is the appropriate service response when a problem occurs?
  • Is lower reliability a good trade-off for shorter repair time?
  • When does it make sense to time-phase capacity increases in the data center?

Additional information