Guide to choosing a UPS

The best UPS choices, and the capacity of the UPS system required for your particular situation, will reveal themselves easily if you answer three key questions:

  • What is my approximate load size in kVA?
  • What electrical problems, if any, will my load present to a UPS?
  • What are my priorities for protecting the load?

UPS capacity, and your choice of UPS, will very much depend upon the answers you give to these questions. Another important consideration before you choose your power protection solution is how to balance budgetary and space considerations against the criticality of the operational load and flexibility for future growth.

This website has three tools to help you quickly and simply estimate the answers you need and identify UPS capacity and the type and size of UPS product you require.

Load Power Estimation Guide offers tips on how to estimate the load that your equipment presents. However, this is a guide only to help you plan and budget for your installation. A site survey or accurate power calculation is recommended before actually purchasing a UPS.

Ask an Kohler Uninterruptible Power sales engineer to arrange a site survey. It is free of charge and will not only yield accurate results but also reveal other UPS impact factors, such as load harmonics, poor power factor or other load quality issues.

The kVA load calculator is an online tool to help you calculate the size and determine UPS capacity for the load that needs to be protected.

For more information or an informal discussion about UPS capacity and choosing a UPS, please call: +65 6302 0702 or email [email protected]


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