Ai90 Rack-Integrated 3-Phase UPS | 50-70 kW in 13U
50–70 kW | 400/230V & 480V | Rack-Integrated Online UPS
High-density rack-integrated three-phase UPS engineered for modern compute, AI infrastructure, and distributed power architectures requiring compact deployment and scalable rack-level power protection.
50–70 kW · 400/230V & 480V Three-Phase · Rack-Integrated Online Double-Conversion UPS · 13U · TAA
Ai90 rack-integrated high-density three-phase UPS Coming early 2027
The Ai90 is a modular rack-integrated three-phase UPS that delivers 50 to 70 kW of online double-conversion protection in a compact 13U footprint — over 5 kW per U. It integrates power conversion, batteries, maintenance bypass, and output distribution into a single rack-mounted system, bringing three-phase UPS protection directly to the rack for AI and GPU compute, modular data centers, and high-density infrastructure across 400/230V and 480V environments. Unity output power factor, up to 96.5% online (99% ECO) efficiency, hot-swappable internal batteries, integrated distribution, and TAA compliance. The Ai90 is not yet shipping — availability is expected in early 2027. Contact Xtreme Power to discuss a deployment or to be notified at release.
High-density three-phase protection, at the rack
The Ai90 defines the category of high-density rack-integrated three-phase UPS systems. It delivers conditioned three-phase power directly at the rack level — without reliance on centralized UPS cabinets — consolidating power conversion, battery energy storage, maintenance bypass, and output distribution into a unified rack architecture. This supports resilient deployment across high-density compute, edge infrastructure, industrial systems, healthcare technology, and research environments where space efficiency and serviceability are critical.
Power protection aligned with compute density
Ai90 enables three-phase UPS protection to be deployed within the rack, aligning power infrastructure with compute density. By integrating power conversion, battery, bypass, and distribution into a single 13U system, it eliminates centralized UPS cabinets, reduces infrastructure complexity, and improves deployment efficiency — achieving over 5 kW per U in 480V systems. The platform ships in modular sections (a 5U UPS section and an 8U battery section, busbar-connected) for simplified transport and faster installation than floor-standing UPS.
| Integrated function | What it replaces |
|---|---|
| Power conversion (online double-conversion) | A centralized UPS cabinet and dedicated electrical room |
| Battery energy storage (internal, hot-swappable) | External battery cabinets for baseline ride-through |
| Maintenance bypass (integrated) | A separate external bypass panel |
| Output distribution (built-in breakers) | External distribution panels |
What the Ai90 delivers
High power density — protection, bypass, and backup in a compact 13U rack space, achieving over 5 kW per U in 480V systems.
Unity PF delivers full rated kW for high-density load applications — full usable watts for AI, GPU, and compute-intensive racks.
High-efficiency online double-conversion operation, with up to 99% in ECO mode, reducing energy and cooling load at the rack.
Modular internal high-rate VRLA batteries in dual parallel strings with a dedicated common breaker for safe operation and serviceability.
Built-in output breakers (63A / 100A / 125A module options) eliminate the need for external distribution panels.
A built-in maintenance bypass enables manual load transfer to utility for simplified service, with a touch LCD for status, measurements, and alarms.
Voltage and capacity configurations
Ai90 supports multiple voltage and capacity configurations aligned with regional infrastructure requirements. The 480V configurations reach 70 kW; the 400/230V configuration is offered to 60 kW.
| Model | Capacity | Voltage |
|---|---|---|
| Ai90-50K4804W2 | 50 kW | 480/277V (3-phase, 4W + G) |
| Ai90-70K4804W2 | 70 kW | 480/277V (3-phase, 4W + G) |
| Ai90-50K4803W2 | 50 kW | 480V (3-phase, 3W + G) |
| Ai90-70K4803W2 | 70 kW | 480V (3-phase, 3W + G) |
| Ai90-50K4004W2 | 50 kW | 400/230V (3-phase, 4W + G) |
| Ai90-60K4004W2 | 60 kW | 400/230V (3-phase, 4W + G) |
All models are 13U rack-integrated, unity power factor, online double-conversion, with integrated battery, bypass, and distribution. Output distribution modules (one per system): A = (4)×63A, B = (2)×100A, C = (2)×125A 3-pole breakers; hardwired or factory pigtails (NEMA / IEC 60309). Input voltage range +15% / −20% at 100% load; 50/60 Hz. The 400/230V configurations are supplied for 400V sites; see the limited warranty for coverage outside the USA and Canada.
Runtime by load and battery configuration
Approximate runtime in minutes by load, from internal batteries (two strings) through one to seven Ai90-EBC4 external battery cabinets. The Ai90 is optimized for short-duration ride-through to generator transfer, with external cabinets extending runtime as needed.
| Load | Internal (2 strings) |
Ai90-EBC4 external battery cabinets | ||||||
|---|---|---|---|---|---|---|---|---|
| +1 | +2 | +3 | +4 | +5 | +6 | +7 | ||
| 30 kW | 9 | 15 | 21 | 27 | 34 | 41 | 48 | 56 |
| 40 kW | 6 | 10 | 15 | 19 | 24 | 29 | 34 | 39 |
| 50 kW | 3.7 | 7 | 11 | 15 | 18 | 22 | 26 | 30 |
| 60 kW | 2.5 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
| 70 kW | 1.7 | 4 | 7 | 10 | 12 | 15 | 17 | 20 |
Runtimes are approximate and vary with battery age and site conditions. Internal ride-through is up to 3.7 minutes at 50 kW (less at higher loads); each Ai90-EBC4 is a 4U rack cabinet with (4) battery modules and an integrated breaker. Contact Xtreme Power at (800) 582-4524 or sales@xpcc.com for runtime sizing.
The high-density tier of the rack-integrated family
Ai90 is the high-density platform within the Xtreme Power rack-integrated UPS architecture — the step up from compact rack-level modular systems to high-capacity rack-integrated power. It is selected when centralized UPS systems are replaced with distributed rack-level architectures, or when power density exceeds the range of smaller modular systems.
You are here
Need higher-capacity 480V protection? See the X90-2S. For system design context, see the rack power architecture guide.
Same protection, floor-standing: the X90-1S
The Ai90 puts 50–70 kW of 480V three-phase protection inside the rack. When the UPS belongs on the floor beside the load instead of in the rack, the X90-1S delivers the same 50–70 kW 480V single-module architecture — power module, batteries, and integrated maintenance bypass — as a self-contained, tower-style floor-standing cabinet just 23.6″ wide. Same protection, two form factors: the Ai90 rack-integrated in 13U, or the X90-1S as a free-standing cabinet beside the load.
Distributed power, not a central cabinet
Traditional UPS systems are centralized, requiring dedicated electrical rooms and large distribution infrastructure. The Ai90 delivers three-phase power in a rack-integrated architecture — enabling localized power protection, reduced cabling complexity, simplified expansion, and faster deployment. It is also a strong replacement for end-of-life Eaton BladeUPS systems, enabling migration from centralized legacy architecture to distributed rack-integrated infrastructure.
Where the Ai90 is deployed
The Ai90 is deployed where high-density three-phase power is required within a rack environment — AI and GPU compute clusters, high-density data center racks, edge and modular/prefabricated data centers, IDF and MDF environments, telecommunications infrastructure, industrial and automation systems, and healthcare and laboratory systems. It is especially suited to environments transitioning from centralized UPS to distributed rack-level architectures.
TAA-compliant rack power
The Ai90 is TAA compliant alongside UL, CE, and RoHS — supporting regulated data center, government, and enterprise deployments requiring Trade Agreements Act compliance.
Ai90 specifications
| Capacity | 50 / 60 / 70 kW (unity PF) — 70 kW on 480V; 60 kW on 400/230V |
| Topology | Online double-conversion, three-phase; rack-integrated |
| Voltage | 480/277V (4W + G), 480V (3W + G), 400/230V (4W + G); range +15% / −20% at 100% load; 50/60 Hz |
| Efficiency | Up to 96.5% online (AC-AC), up to 99% ECO mode |
| Overload | ≤110% (1 hr); 111–125% (10 min); 126–150% (1 min); >150% (200 ms) |
| Battery (internal) | High-rate VRLA modules; (8) modules, dual parallel strings with common breaker, hot-swappable; charging 6 A default / 18 A max |
| Battery (extended) | Ai90-EBC4 — 4U rack cabinet with integrated breaker and (4) battery modules |
| Output distribution | Integrated; module A (4)×63A, B (2)×100A, C (2)×125A 3-pole breakers; hardwired or factory pigtails (NEMA / IEC 60309) |
| Bypass | Integrated maintenance bypass |
| Form factor | 13U rack-integrated; two-section system (5U UPS + 8U battery), busbar-connected |
| Dimensions | 17.2 × 36.2 × 22.75 in (438 × 920 × 578 mm) |
| Module weights | Power module 104 lb (47 kg); control module 31 lb (14 kg); battery module 73 lb (33 kg) |
| Display | Touch LCD — system status, measurements, and alarms |
| Environment | 0–40°C (32–104°F); altitude 2000 m (6,500 ft) |
| Approvals | UL, CE, RoHS, TAA compliant |
| Warranty | Bundled start-up and 2 years on-site with advance replacement (USA and Canada); 1 year depot outside the USA and Canada |
Ai90 — frequently asked questions
When will the Ai90 be available?
Availability is expected in early 2027. The platform is not yet shipping, so pricing and lead times are not yet published. Contact Xtreme Power to discuss a deployment, reserve capacity, or be notified at release. If the requirement is immediate, the floor-standing X90-1S delivers the same 50–70 kW of 480V three-phase protection today.
Can the Ai90 replace an end-of-life Eaton BladeUPS?
Yes, and it is a common reason customers look at it. The BladeUPS put scalable three-phase power in the rack; the Ai90 does the same thing at higher density, 50–70 kW in 13U against the BladeUPS at 12 kW per 6U module. Power conversion, batteries, maintenance bypass and output distribution are integrated, so a migration replaces the whole rack-level power section rather than assembling it from parts. See the Eaton BladeUPS replacement guide for the migration path.
How much UPS capacity actually fits in a rack?
The Ai90 delivers 50–70 kW in 13U, which works out to more than 5 kW per rack unit on the 480V configurations. That is 5U for the UPS section and 8U for the internal battery, busbar-connected as one system. Everything a rack-level power tier normally needs — conversion, batteries, bypass and distribution — is inside that 13U rather than distributed across separate equipment.
What runtime do I need before generator transfer?
Most sites size for the transfer window rather than for extended outage. The Ai90 carries two internal battery strings and is optimized for short-duration ride-through to generator transfer. Internal batteries give roughly 9 minutes at 30 kW and 1.7 minutes at 70 kW; from one to seven Ai90-EBC4 external cabinets extend that as far as the site requires. Where there is no generator, size on the external cabinets instead.
Which voltage configuration should I specify?
There are three, and capacity differs between them. 480/277V three-phase 4W + G + G and 480V three-phase 3W + G + G both offer 50 or 70 kW. 400/230V three-phase 4W + G + G offers 50 or 60 kW. So 70 kW is available only at 480V, and 60 kW only at 400V. The choice between 4W + G + G and 3W + G + G follows whether the service brings a neutral to the rack.
When should I choose the floor-standing X90-1S instead?
When rack space is not the constraint. The X90-1S delivers the same 50–70 kW protection in a free-standing cabinet, so it suits rooms where floor area is available and rack units are expensive, or where the UPS serves several racks rather than sitting in one. Choose the Ai90 where power belongs in the rack with the load, and the X90-1S where a central cabinet feeding a row makes more sense.
What is covered by the warranty, and does it change outside North America?
Yes, it changes. Within the USA and Canada the Ai90 carries bundled start-up and 2 years on-site service with advance replacement. Outside the USA and Canada the term is 1 year depot and start-up is not included. The 400/230V configurations are the ones most likely to be affected. Coverage follows installation location rather than the model number, so confirm the destination before quoting. Full terms are on the warranty page.
Documents and related links
Plan your Ai90 deployment
Talk to an Xtreme Power specialist about rack-integrated UPS design, voltage and capacity configuration, runtime sizing with Ai90-EBC4 cabinets, output distribution, BladeUPS and centralized-UPS migration, and TAA-compliant deployment for AI/GPU compute, data center, edge, and industrial environments.