Calculating Volt-Amperage Requirements
To determine the size of UPS that you need:
Locate the voltage and amperage requirements for
each piece of equipment.
These numbers are usually found on a sticker on the back or bottom of your equipment.
Multiply the numbers together to get Volt-Amperes (VA):
VA = Volts x Amperes
Add the VA from all the pieces of equipment
together to find the total VA requirement.
To determine the minimum volt-amperage requirements for your UPS, add 30% to the total.