X90-2S Modular UPS – 50–140kW 480V Integrated UPS System

Key specifications

Capacity growth in one cabinet

The X90-2S is designed for 480V environments that need higher capacity than compact systems while keeping a simplified, integrated architecture. Power modules, batteries, and maintenance bypass are contained within a single enclosure — eliminating separate battery cabinets in many deployments while enabling expansion within the same footprint. Built around one or two 50 or 70 kW power modules, the X90-2S scales from 50 to 140 kW, with internal batteries supporting loads up to 100 kW in the single cabinet. Both the three-wire and four-wire versions share the same cabinet, modules, runtimes, and service architecture — only the input and output topology differs.

Three-wire or four-wire

The choice comes down to what is downstream. If every load on the UPS is three-phase, or if line-to-neutral loads are already served by a separate distribution path, the three-wire version is the simpler and less expensive installation. If the facility feeds 277VAC line-to-neutral branch circuits — lighting, single-phase mechanical, or mixed commercial loads — the four-wire version carries the neutral through the UPS and removes an entire piece of downstream equipment from the design.

What defines the X90-2S

The X90 platform family

X90-2S is the scalable integrated platform within the X90 family — used in data centers, industrial systems, medical environments, and modular infrastructure needing higher capacity and redundancy. The family scales on a shared architecture:

See the full platform: X90 Modular UPS Series →

Scale without the multi-cabinet footprint

Traditional modular UPS systems often require external battery cabinets and additional floor space as capacity increases. The X90-2S integrates runtime and maintenance bypass into a single cabinet, enabling scalable capacity without the footprint and complexity of multi-cabinet systems — for higher power density and simplified deployment while maintaining full system performance.

Compare the X90-2S against Eaton 93PM, APC Galaxy VS, and Vertiv APM2: X90-2S UPS comparisons →

Integrated runtime, redundancy, and X90-BC expansion

The integrated battery system provides internal runtime suitable for generator ride-through and short-duration outages — up to 6 minutes at 100 kW. The modular architecture supports redundancy and serviceability through hot-swappable power and battery modules, allowing maintenance without system downtime. For extended runtime or 140 kW configurations, the optional X90-BC battery cabinet adds up to 36 battery modules.

Runtimes are identical for the 3W and 4W versions. Runtimes in minutes; vary with battery age and site conditions. Modules 8–20 are internal to the UPS cabinet (4/8/12/16/20 installed); shaded columns (24–56) require the optional X90-BC battery cabinet. 140 kW configurations require X90-BC for meaningful runtime. N+1 redundancy is configured within installed slot capacity and is not implied at a frame’s fully-populated maximum.

Model selection & technical summary

Shared specifications

Need protection inside the rack?

Where the X90-2S is deployed

Deploying in a healthcare or imaging facility? See X90-2S for medical imaging — or, for MRI specifics, UPS for MRI systems.

X90 platforms & related guides