What a 100kVA UPS is for
A 100kVA UPS (100 kW at unity pf) protects mid-size data centres, industrial plant and large commercial installations. Three-phase supply is standard and modular N+1 architecture is the recommended approach for availability and growth.
Modular N+1 at 100kVA
A modular frame such as Riello Multi Power lets you build 100kVA from hot-swappable modules with one spare for N+1 redundancy — modules can be added or serviced without dropping the load. Sentryum S3T covers 100kVA in a monolithic cabinet up to 120kVA, and Multi Power2 starts at 120kVA for sites planning to grow beyond 100kVA.
Efficiency and Energy Saving
Modern 100kVA modular UPS reach 96–98% efficiency online, with Energy Saving mode shutting down redundant modules at low load. This keeps a 100kVA system efficient even when running well below capacity, protecting PUE and lowering operating cost.
Runtime, redundancy and models
External battery cabinets or lithium banks extend runtime to an hour or more. Build N+1 with a modular frame or parallel monolithic units. Strong 100kVA options include Riello Multi Power, Sentryum S3T and Multi Power2.
Frequently asked questions
Is a 100kVA UPS three-phase?
Yes, three-phase is standard at 100kVA.
Can I build N+1 at 100kVA?
Yes. A modular Multi Power frame gives hot-swap modules and N+1 redundancy with downtime-free maintenance.
How efficient is a 100kVA modular UPS?
96–98% online, with Energy Saving mode improving efficiency at low load.
What runtime does a 100kVA UPS give?
Minutes on internal batteries; external cabinets or lithium banks extend this to an hour or more.