Guide

UPS sizing guide for industrial and IT loads

How to estimate kVA, autonomy, and redundancy before you buy a UPS.

Zigma engineering teamPower continuity & energy engineers1 min read
Scroll to read

Correct UPS sizing protects critical loads without overspending on oversized hardware. Start with measured load (kW), apply a power-factor conversion to kVA, then add headroom for growth and inrush.

Checklist: list critical vs non-critical loads; note single-phase vs three-phase; decide autonomy (minutes); choose N or N+1 redundancy; plan battery chemistry and service access.

Zigma engineers can validate your BOM against site conditions, harmonic content, and generator compatibility before procurement.

UPSGuideSizing
Share

Written by

Zigma engineering team

Power continuity & energy engineers

The engineers who size, install and maintain UPS, solar and storage systems for Zigma clients across India.

Keep reading

More practical notes from the Zigma engineering desk.

Article · 1 minZigma Technologies Bengaluru — FAQChecklist · 1 minSolar O&M checklist for commercial rooftopsArticle · 4 minBESS peak shaving: when storage pays for itself
Engineering support

Need this implemented on site?

Our engineers size, install and maintain UPS, solar and storage with documented handover — not generic advice.

Talk to an engineer →All articles