M90Si-6S Modular UPS – 10–30kW Scalable Single-Phase UPS (208–240V) with N+1 Redundancy

The M90Si-6S is a modular online double-conversion UPS designed for international single-phase power environments requiring higher capacity and flexible deployment.

Built on a 6-slot architecture using 10 kW power modules, the system scales from 10 kW to 30 kW while supporting N+1 redundancy, runtime expansion, and phased deployment within a single platform.

This enables centralized, high-capacity power continuity across global infrastructure without requiring transition to three-phase UPS systems.

Key Specifications

• 10–30 kW capacity
• 208–240V single phase
• 50 / 60 Hz operation
• Online double-conversion topology
• 10 kW modular power blocks
• 6 universal slots (power or battery)
• N+1 redundancy capable
• Modular battery expansion
• Hardwired input and output connections
• Rack or cabinet deployment
• 3-year warranty (USA & Canada)
• TAA compliant

Datasheet:
https://xpcc.com/wp-content/uploads/M90Si-6S-datasheet.pdf

Scalable Modular Power Architecture

M90Si-6S enables modular scalability within international single-phase infrastructure.

Capacity can be increased incrementally by adding 10 kW power modules, while redundancy can be implemented using N+1 configuration within the same system.

This allows infrastructure planners to align UPS capacity with actual load requirements while maintaining flexibility for future expansion.

Designed for Global Edge and Distributed Infrastructure

Many international deployments operate on single-phase power, including:

• telecommunications and cell tower infrastructure
• edge compute and containerized systems
• distributed commercial facilities
• remote and industrial installations

M90Si-6S enables these environments to deploy centralized UPS protection with scalable capacity and redundancy, without requiring three-phase electrical infrastructure.

Learn more about edge deployments:
https://xpcc.com/ups-for-edge-data-centers/

Where M90Si-6S Fits in Power Architecture

M90Si-6S operates as the core modular UPS platform for global single-phase infrastructure.

It is typically deployed:

• in electrical rooms and telecom environments
• across distributed international sites
• where centralized UPS simplifies multi-system deployment

Within the Xtreme Power architecture:

• P91g → rack-level UPS
• T91i → long-runtime UPS
• M90Si-2S → entry modular UPS
• M90Si-4S → scalable modular UPS
• M90Si-6S → core modular UPS platform (this system)
• M90Si-12S → high-capacity modular UPS
• Li90 → three-phase facility UPS

For architecture context:
https://xpcc.com/rack-power-architecture/

Modular UPS vs Traditional UPS

Traditional UPS systems must be oversized or replaced as infrastructure grows.

M90Si-6S enables capacity, redundancy, and runtime to be scaled incrementally within a single system.

Key Differences

Electrical Integration and Deployment

M90Si-6S is designed for hardwired electrical integration within global infrastructure environments.

Unlike smaller plug-and-deploy UPS systems, it does not use line cords or receptacle-based distribution. This supports higher capacity deployment, improved electrical reliability, and alignment with facility-level power architecture.

Rack Deployment and Installation

M90Si modular UPS systems support rack-based deployment with integrated mounting and modular access, enabling installation in standard equipment racks while maintaining serviceability.

Watch on YouTube:
https://www.youtube.com/shorts/lsok0-_uHAg

When to Use a Modular Single-Phase UPS

M90Si-6S is typically selected when:

• infrastructure is expected to grow over time
• redundancy is required within a single system
• distributed UPS systems are difficult to manage
• runtime requirements exceed rack UPS capability
• international deployment standardization is required

Replace APC / Eaton UPS Systems

M90Si-6S is commonly deployed as a replacement for:

• distributed UPS deployments
• fixed-capacity UPS systems
• legacy modular UPS platforms

Explore comparisons:
https://xpcc.com/m90s-modular-ups-competitive-comparisons/

Typical Applications

M90Si-6S is deployed across:

• telecommunications networks
• edge data center infrastructure
• industrial automation systems
• broadcast environments
• commercial infrastructure

Capacity Guidance

Capacity is defined by module configuration:

• 10 kW → base system
• 20 kW → scaling infrastructure
• 30 kW → fully populated system
• N+1 → redundancy configuration

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

M90S Modular Platform Options

• M90Si-2S → 10 kW
• M90Si-4S → 10–20 kW
• M90Si-6S → 10–30 kW (this platform)
• M90Si-12S → up to 50+ kW

Explore full platform:
https://xpcc.com/m90s-single-phase-modular-ups/

Technical Summary

Topology: Online double conversion
Capacity: 10–30 kW
Voltage: 208–240V
Frequency: 50 / 60 Hz
Architecture: Modular
Slots: 6
Redundancy: N+1 capable
Battery: Modular expansion
Installation: Hardwired / rack-capable

Plan With Confidence

Xtreme Power Conversion supports engineers, consultants, and infrastructure planners in designing modular UPS systems for scalable capacity, redundancy, and global infrastructure deployment.

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