M90LU Modular UPS – Extended Runtime Three-Phase UPS (15–60kW, 208/120V)

The Xtreme Power M90LU is designed for data centers, telecom, industrial, and critical infrastructure environments where runtime must be engineered independently from UPS capacity and scaled based on site-specific requirements.

Key Specifications

• 15–60 kW capacity
• 208/120V three-phase
• Modular online double-conversion topology
• 15 kW or 20 kW power modules
• N+1 redundancy capable
• External battery architecture (no internal batteries)
• ±120 VDC battery system
• Integrated maintenance bypass
• Dual or single input supported
• Unity output power factor

Datasheet:
https://xpcc.com/wp-content/uploads/M90LU-flyer.pdf

Modular UPS with External Battery Architecture

M90LU defines the category of modular UPS systems optimized for external battery deployment and extended runtime. Unlike integrated battery UPS platforms, M90LU separates the UPS and battery system. This allows runtime to be designed independently of power capacity and scaled using external battery systems aligned with application requirements.

The platform supports Xtreme Power battery systems such as M90-BC and M90-BOS, as well as third-party battery configurations, enabling flexible deployment across a wide range of infrastructure environments. This architecture improves runtime scalability, serviceability, and long-term infrastructure planning flexibility.

Where M90LU Fits

M90LU operates as the extended-runtime modular platform within the M90U UPS family.

Within the Xtreme Power architecture:

• P91 / J90 → rack-level UPS systems
• Li90 → integrated lithium facility UPS
• M90LU → modular UPS with external battery architecture (this platform)
• M90U → modular UPS with internal batteries
• M90U-80 / M90U-140 → higher-capacity modular platforms

M90LU is typically deployed in facilities requiring extended runtime, centralized battery systems, or flexible infrastructure scaling.

Explore full platform:
https://xpcc.com/xtreme-power-m90u-ups-family/

Key Advantages of M90LU

M90LU is engineered for environments where runtime flexibility, scalability, and serviceability are primary design considerations.

• Modular scalability from 15 kW to 60 kW
• External battery architecture enabling extended runtime
• Independent scaling of power and runtime
• N+1 redundancy within a single system
• Flexible battery cabinet and third-party battery integration
• Improved serviceability compared to integrated battery systems

M90LU vs Traditional Extended Runtime UPS

Traditional extended runtime UPS systems often rely on oversized internal batteries or fixed battery cabinet configurations.

M90LU separates the UPS and battery system, allowing runtime to be engineered independently and expanded as needed. This improves flexibility, simplifies maintenance, and enables infrastructure designs aligned with long-term capacity and runtime planning.

M90LU vs Integrated Battery Modular UPS (M90U)

M90LU and M90U share the same modular UPS platform but differ in battery architecture.

• M90U → internal batteries, standard runtime deployment
• M90LU → external batteries, extended runtime deployment

M90LU is selected when runtime requirements exceed internal battery capabilities or when centralized battery systems are preferred.

M90LU vs Lithium UPS Platforms

M90LU represents a modular external battery approach optimized for extended runtime and infrastructure flexibility. Lithium UPS platforms such as Li90 prioritize reduced maintenance, integrated battery design, and higher energy density. M90LU is typically selected when runtime duration, battery flexibility, and system scalability are the primary drivers.

Learn more:
https://xpcc.com/lithium-ups-guide/

Replace APC and Eaton UPS Systems

M90LU is commonly deployed to replace legacy UPS systems requiring extended runtime from APC and Eaton platforms. Typical upgrade scenarios include:

• Systems requiring longer ride-through than internal batteries allow
• Facilities transitioning to centralized battery architectures
• Infrastructure requiring scalable runtime and modular serviceability
• Sites modernizing legacy UPS with limited runtime flexibility

Explore comparisons:
https://xpcc.com/m90u-ups-comparisons/

Typical Applications

M90LU is deployed across infrastructure environments requiring extended runtime and scalable UPS architecture, including data centers, telecom and network infrastructure, industrial systems, healthcare environments, and edge data center deployments.

Related applications:

• https://xpcc.com/ups-for-edge-data-centers/
• https://xpcc.com/data-center-ups/

Capacity Guidance

Capacity is defined by module configuration and infrastructure scaling requirements. Systems typically deploy from 15–30 kW in initial configurations and scale to 40–60 kW as infrastructure expands. N+1 redundancy can be implemented within the same system, while runtime is defined independently through external battery system design.

UPS sizing tool:
https://xpcc.com/selector

Electrical Integration

M90LU is designed for permanent facility installation with hardwired input and output connections. The system supports dual-input configurations and includes an integrated maintenance bypass. External battery systems are deployed using dedicated cabinets aligned with facility infrastructure and runtime objectives.

Technical Summary

• Topology: Online double conversion
• Capacity: 15–60 kW
• Voltage: 208/120V three-phase
• Architecture: Modular
• Redundancy: N+1 capable
• Battery: External cabinet-based

Plan With Confidence

Xtreme Power Conversion supports engineers, consultants, and infrastructure planners in designing modular UPS systems with scalable capacity, extended runtime, and flexible battery architecture.

Phone: (800) 582-4524
Email: sales@xpcc.com