X90-2S Modular UPS – 50–140kW 480V Integrated UPS System
50–140 kW | 480V | Modular Three-Phase UPS
Scalable, fully integrated 480V UPS system designed for critical infrastructure requiring higher capacity, redundancy, and simplified deployment within a compact footprint.
Scalable Modular Three-Phase UPS · 480V Integrated
X90-2S Modular UPS
A scalable, fully integrated 480V UPS system for critical infrastructure needing higher capacity, redundancy, and simplified deployment within a compact footprint. Online double-conversion protection with hot-swappable power and battery modules, integrated batteries, and maintenance bypass in a single cabinet.
↓ Download the X90-2S datasheet (PDF)
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.
What defines the X90-2S
Highest availability
Configurable with redundant power and battery modules — N+1 within installed slot capacity for continuous uptime.
High-efficiency operation
Up to 96.5% in online mode and 99% in ECO mode, reducing energy cost in continuous duty.
50 or 70 kW power modules
One or two hot-swappable power modules scale the system from 50 kW up to 140 kW.
Integrated batteries
Internal batteries provide up to 6 minutes at 100 kW — no external enclosure required up to 100 kW.
Full front access
No rear clearance needed for maintenance — supports against-wall and tight-room installs.
Integral maintenance bypass
Front bypass enables service and repair with no external bypass gear.
10″ touchscreen LCD
Graphic display of real-time status and alarms.
Dual or single input
Flexible input configuration for maximum installation flexibility.
Top cable access (standard)
Optional 6″ side-car kit adds bottom cable entry (increases width by 6″).
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:
You are here
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.
| Load ↓ / modules → | Internal — UPS cabinet | Requires X90-BC battery cabinet | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8 | 12 | 16 | 20 | 24 | 28 | 32 | 36 | 40 | 44 | 48 | 52 | 56 | |
| 30 kW | 9 | 15 | 21 | 27 | 34 | 41 | 48 | 56 | 63 | 71 | 79 | 87 | 95 |
| 50 kW | – | 7 | 11 | 15 | 18 | 22 | 26 | 30 | 34 | 38 | 43 | 47 | 52 |
| 70 kW | – | – | 7 | 10 | 12 | 15 | 17 | 20 | 23 | 26 | 28 | 31 | 35 |
| 80 kW | – | – | 6 | 8 | 10 | 13 | 15 | 17 | 19 | 22 | 24 | 27 | 29 |
| 100 kW | – | – | – | 6 | 7 | 9 | 11 | 13 | 15 | 17 | 18 | 20 | 22 |
| 140 kW | – | – | – | – | – | 6 | 7 | 8 | 10 | 11 | 12 | 14 | 15 |
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
| Model | Power modules | Power rating | Charge current | Internal battery modules |
|---|---|---|---|---|
| X90-2S50k | 1 × 50 kW | 50 kVA / 50 kW | 18 A | 4 / 8 / 12 / 16 / 20 |
| X90-2S70k | 1 × 70 kW | 70 kVA / 70 kW | 18 A | 4 / 8 / 12 / 16 / 20 |
| X90-2S100k | 2 × 50 kW | 100 kVA / 100 kW | 36 A | 4 / 8 / 12 / 16 / 20 |
| X90-2S140k | 2 × 70 kW | 140 kVA / 140 kW | 36 A | 4 / 8 / 12 / 16 / 20 |
Shared specifications
- Topology: Online double-conversion (continuous, conditioned output)
- Capacity: 50–140 kW — one or two 50 / 70 kW power modules (kVA = kW)
- Input: 480VAC (3W), 50/60 Hz auto-sensing; range 480VAC ±20%, 40–70 Hz; dual or single input
- Output: 480VAC (3W), 50/60 Hz auto-sensing
- Efficiency: Up to 96.5% online mode; 99% ECO mode
- Overload: 105–110% for 60 min; 110–125% for 10 min; 126–150% for 1 min; >150% for 200 ms
- SCCR: 65 kAIC breakers (input, output & maintenance bypass)
- Battery: ±240 VDC nominal; 4 / 8 / 12 / 16 / 20 internal modules; programmable charge 18 A (50/70 kW) or 36 A (100/140 kW); module = 10× 12V 580W
- Extended runtime: Optional X90-BC cabinet adds up to 36 battery modules (56 total)
- UPS cabinet (W×D×H): 23.6 × 42 × 79 in · 864 lbs
- X90-BC cabinet (W×D×H): 23.6 × 42 × 79 in · 878 lbs
- Module size: Power module 17.2×29.5×5.1 in / 106 lbs · battery module 17.2×29.5×5.25 in / 70 lbs
- Display: 10″ color touchscreen
- Cable entry: Top entry standard; optional 6″ side-car kit for bottom entry (adds 6″ width)
- Environment: 0–40°C (32–104°F); up to 5,200 ft; < 69 dBA at 1 m
- Communications: RS-232, EPO, relays, intelligent slot for optional Web/SNMP or Modbus card
- Approvals: UL-1778, cUL, FCC Class A, RoHS, TAA, Energy Star
- Warranty: 2 years (USA & Canada)
- Included: User manual, RS-232 cable, unloading ramp, ViewPower software
- Options: External maintenance bypass, battery temperature sensor, side-car kit
Need protection inside the rack?
Ai90 — rack-integrated three-phase UPS
The Ai90 delivers 480V three-phase protection in a comparable capacity class — but in a rack-mounted form factor that also integrates output distribution. Power conversion, batteries, bypass, and a PDU live in a single rack system, sized for high-density compute and AI infrastructure where the UPS belongs in the rack rather than on the floor.
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
Plan with confidence
Xtreme Power Conversion supports engineers, consultants, and facility operators with UPS sizing, infrastructure design, and system-modernization planning.
| MODEL NUMBER | X90-2S50k | X90-2S70k | X90-2S100k | X90-2S140k | |
| CAPACITY | Power rating | 50kVA/50kW | 70kVA/70kW | 100kVA/100kW | 140kVA/140kW |
| CABINET | X90-2S UPS: power modules | Up to 140kW (2 x 70kW) or up to 100kVA (2 x 50kW) | |||
| CAPACITY | X90-2S UPS: battery modules | 4, 8, 12, 16 or 20 battery modules | |||
| X90-BC: battery modules | Up to 36 additional battery modules | ||||
| INPUT | Voltage/frequency nominal | 480VAC (3W), 50/60Hz auto-sensing | |||
| Voltage/frequency range | 480VAC or +20/-20% VAC three-phase, 40-70Hz | ||||
| OUTPUT | Voltage/frequency range | 480VAC (3W), 50/60Hz auto-sensing | |||
| Efficiency | Up to 96.5% online mode or 99% ECO mode | ||||
| Overload capacity | 105%-110% for 60min; 110%-125% for 10min; 126%-150% for 1min; >150% for 200ms | ||||
| BATTERY SYSTEM | Nominal voltage | +/-240VDC | |||
| Charge Current (programable) | 18A | 18A | 36A | 36A | |
| DIMENSIONS & | UPS & battery cabinet (W x D x H) | 23.6 x 42 x 79 in / 864 lbs (UPS) / 23.6 x 42 x 79 in 878 lbs (BC) | |||
| WEIGHTS | Power & battery module (W x D x H) | 17.2 x 29.5 x 5.1 in / 106 lbs (PM) 17.2 x 29.5 x 5.25 in / 70 lbs (BM) | |||
| ENVIRONMENT | Temperature | 0–40°C (32–104°F) | |||
| Altitude | 5,200 ft above sea level | ||||
| Audible noise (typical) | < 69dBA at 1m | ||||
| APPROVALS | UL-1778, cUL, FCC A, RoHS, TAA, Energy Star | ||||
| WARRANTY | 2 years (USA and Canada) | ||||
| OPTIONAL COMMUNICATIONS INTERFACE | RS-232, EPO, Relays, Intelligent slot for web cards (Web/SNMP, Modbus) | ||||
| INCLUDED IN BOX | User manual, RS-232 cable, unloading ramp, ViewPower Software | ||||
| AVAILABLE OPTIONS | External maintenance bypass, battery temperature sensor, side car kit for bottom cable access (increases width by 6”) | ||||