What a 120kVA UPS is for
A 120kVA UPS (120 kW at unity pf) protects mid-to-large data centres and industrial installations. 120kVA is the top of the Sentryum S3T monolithic range and the entry point of the Multi Power2 modular range — a natural crossover from monolithic to modular architecture.
Modular vs monolithic at 120kVA
At 120kVA you can choose a monolithic Sentryum S3T cabinet (simpler, lower upfront cost) or a modular Multi Power2 frame (hot-swap modules, N+1 redundancy, pay-as-you-grow). For data centres wanting redundancy and growth, modular is the recommended path; for a fixed 120kVA load, monolithic is cost-effective.
Parallel and redundancy
Beyond a single frame, you can parallel multiple units for capacity or redundancy. Sentryum parallels up to 8 units and Multi Power up to 4 cabinets, so a 120kVA requirement can be met with N+1 or 2N configurations. Plan a centralised bypass and proper switchgear.
Efficiency, runtime and models
Modern 120kVA UPS reach 96–98% efficiency online. External battery cabinets or lithium banks extend runtime to an hour or more. Strong 120kVA options include Riello Sentryum S3T, Multi Power and Multi Power2.
Frequently asked questions
Is a 120kVA UPS three-phase?
Yes, three-phase is standard at 120kVA.
Modular or monolithic at 120kVA?
Modular (Multi Power2) for N+1 redundancy and growth; monolithic (Sentryum S3T, top of its range) for a fixed 120kVA load where cost matters.
Can I parallel 120kVA UPS?
Yes. Sentryum parallels up to 8 units and Multi Power up to 4 cabinets for capacity or N+1/2N redundancy.
How efficient is a 120kVA UPS?
96–98% online, with Energy Saving mode improving efficiency at low load.