Ampacities

UPS Sizing

Size backup power for your load and required runtime.

IEEE 1100 · IEC 62040-3
Load schedule 0 items
DescriptionQtyEachPFPhCF
System
Output voltage
Phases
Redundancy topology
Growth
Ambient
Altitude
Autonomy
Runtime target
Battery chemistry

Results

Review capacity, autonomy and the calculation basis.

solved
Detailed analysis Options, ledger, battery and assumptions
IEEE 1100 · IEC 62040-3

Document

Keep project details and calculation notes together.

Audit-ready sheet
Notes
  1. UPS frame and module count sized against the design load (connected × diversity × growth) for the stated redundancy topology.
  2. Battery energy sized for the target autonomy by the simplified-Wh method (IEEE 1100 framing); rigorous cell selection is IEEE 485 (N° 14 Battery Sizing).
  3. Rated-PF policy, efficiency curve and battery correction factors are assumptions — see the assumptions register; verify against vendor data before issue.
References
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— · Rev A · — Export PDF A professional aid, not engineering judgement — you remain responsible for verifying every input and result against the standards that apply to your work.