Scalable, redundant, centralized power

The M90U is a scalable modular online double-conversion UPS that protects critical data and equipment while supplying clean, network-grade power. It can be configured with a fully redundant power module and battery modules — if one module fails, the remaining modules smoothly take over the load. The power modules are independent and hot-swappable without risk to the critical load, and the platform defines a modular approach to facility infrastructure where capacity is built incrementally rather than oversized at initial deployment.

Build capacity incrementally

The M90U enclosure accepts up to three hot-swappable power modules and up to twelve internal battery modules. Capacity is added as load grows — from a 15–20 kW initial install, to 30–40 kW as infrastructure expands, to a fully populated 45–60 kW system — without replacing the UPS or oversizing on day one. Redundancy is configured within the same enclosure by reserving a module.

Hot-swappable power modules — each independent power module withdraws from the front without risk to the critical load, above the control panel with graphic LCD and SNMP / USB / RS-232 communications.

What the M90U delivers

Capacities and module configuration

M90U is offered in two module lines — 15 kW and 20 kW power modules — each scaling across three enclosure slots. Unity power factor means the kVA and kW ratings are equal.

The enclosure holds up to three power modules (up to 45 kW with 15 kW modules, up to 60 kW with 20 kW modules) and up to twelve internal battery modules. N+1 protected capacity is one module below the fully populated rating; the 45 kW and 60 kW ratings are fully populated and non-redundant. Charge current scales with the populated module count (8 / 16 / 24 A).

Runtime by battery modules and load

Approximate runtime in minutes by internal battery-module count (2 to 12) and system load. Higher module counts support higher loads and longer runtime; a dash indicates that load is beyond the supported range for that battery configuration.

Runtimes are approximate and vary with battery age, temperature, and site conditions. Battery life is reduced above 30°C and capacity derates above 30°C and 5,200 ft. Contact Xtreme Power at (800) 582-4524 or sales@xpcc.com for runtime sizing.

The entry modular facility platform

M90U is the entry modular facility UPS within centralized infrastructure environments — deployed in electrical rooms where load aggregation exceeds the capability of rack-based UPS and a centralized, scalable architecture is required. The compact M90C-6S sits a step below it for smaller modular loads. The M90U uses internal batteries for compact deployment; the M90LU shares the platform with an external-battery architecture for extended runtime, and the M90U-80 / M90U-140 extend the family to higher capacities.

See the full M90U platform family, including the external-battery M90LU.

M90U vs the alternatives

See the lithium UPS guide for the VRLA-vs-lithium trade-off.

Replace legacy APC and Eaton systems

M90U is commonly deployed to replace legacy three-phase UPS and aging modular platforms from APC and Eaton — for facilities transitioning from distributed UPS to centralized architecture, systems requiring scalable capacity and redundancy, infrastructure with growing load, and legacy UPS reaching capacity or lifecycle limits.

Where the M90U is deployed

M90U is deployed across facilities requiring centralized, scalable power protection — healthcare infrastructure, data centers, industrial systems, telecommunications, and edge data center deployments.

Approvals and warranty

The M90U carries UL-1778, cUL, FCC Class A, and RoHS, and is TAA compliant on select models — confirm TAA eligibility for the specific model and configuration when a regulated procurement requires it. The system is backed by a 2-year electronics and 2-year battery warranty (USA and Canada).

M90U specifications

Documents and related links