How to size a UPS

Check kW and kVA, phases and load starting currents together. Headroom depends on design and future load growth; kVA alone is insufficient.

Check kW and kVA, phases and load starting currents together. Headroom depends on design and future load growth; kVA alone is insufficient.

What to compare

Active powerSum of operating loads in kW
Apparent powerCheck UPS kVA rating and load PF
PhasesMatch input and output to the site network

How to use this information

The GP33 60–200 catalog states both ratings, for example 60 kVA / 60 kW. EPOWER 10 kVA is rated at 9 kW. Do not transfer these ratings to another range without checking its datasheet.

FORTE Battery Systems · Runtime calculator

FAQ

How do I order?

Send PES POWER your load, required runtime, phases and installation city. Price and lead time are confirmed in the quotation.

Can runtime be determined from kVA alone?

No. Active load, battery configuration and discharge data are required. The calculator provides a preliminary estimate.

Where is the full datasheet?

A PDF link is provided for each model. Check the exact model datasheet when selecting a configuration.