Selecting the correct UPS size all depends on the load of all devices you intend to put onto the UPS. You have to list all the equipment needed for Power Back Up and find each AMP and WATTS information. There are two ways that you can compute your load.
- Option 1 – (AMP) Find the total AMPS of all equipment and multiply it by 220 to get a proper voltage amp or VA rating. The UPS rating must exceed the VA total.
- Option 2 -(WATTS) Add the WATTS of all equipment intended to be backed up and divide it by 0.7 to get a true VA rating. Again the UPS VA rating must be greater than the comprised VA rating.
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