User replaceable modular power for Liebert APS UPS help reduce maintenance costs. With 5kVA/4.5kW FlexPower assemblies, you can quickly scale runtime and power capacity with your IT demand. It is hot-swappable so you can add or replace modules quickly without powering down connected equipment. With built-in, module-level controls, the UPS will not power down in the event of a module failure. Save time with simplified device setup for your Liebert APS UPS.