Volt-ampere rates for UPSs range from 300 VA to 5,000 kVA. This rating represents the maximum load a UPS can sustain, but it should not be used to identify the exact power load you are experiencing. The recommended practice is to select a UPS with a VA rating that is 1.2 times the total load you need it to support in order to accommodate future growth. Add more VA capacity to your specifications if your UPS will be powering motors, variable-speed drives, medical imaging devices, or laser printers to accommodate the high-power startup surge that these devices generate.