M90S Scalable Infrastructure Power Platform
A modern modular single-phase UPS architecture — engineered for scalable infrastructure continuity across distributed and centralized environments running on split-phase power. Phased capacity growth and lifecycle serviceability without disruptive replacement or a forced transition to three-phase distribution.
Why modular single-phase architecture exists
Technology density keeps rising in environments historically served by distributed rack-level UPS — telecom aggregation nodes, distributed compute, broadcast facilities, clinical electrical support, and large residential technology deployments increasingly need structured continuity planning. Legacy deployment models carry structural limitations: fixed-capacity systems force a full replacement to grow, a proliferation of distributed UPS drives up operational complexity, electrical-room constraints cap scalability, redundancy coordination grows harder to manage, and modernization has to be funded in disruptive phased capital cycles.
Modular single-phase architecture lets continuity infrastructure scale predictably with operational requirements instead.
Split-phase infrastructure constraints
Many facilities run on 208/120V or 240/120V service where moving to three-phase distribution is impractical — building electrical design limits it, the service upgrade is costly and disruptive, electrical rooms are constrained, facility layouts are distributed, and modernization is planned in phases rather than all at once.
The point: modular single-phase UPS platforms enable centralized continuity strategies without fundamental electrical-system reconstruction.
Centralized vs. distributed modular deployment
The M90S supports both centralized and distributed modular continuity strategies — and hybrids of the two.
Centralized deployment
Aggregates protection across multiple critical loads under unified runtime and battery-lifecycle management, with structured redundancy planning, simplified service workflows, and higher electrical-room infrastructure density.
Distributed modular deployment
Aggregates continuity locally and expands in phases, with lower initial deployment complexity, incremental modernization, and site-specific continuity design flexibility.
Hybrid deployment models are common — particularly across distributed campus, telecom, and multi-building facility environments.
Standardized 6 kW modular blocks
The M90S is built on standardized 6 kW modular power blocks — a scalable continuity framework that supports predictable capacity expansion, subsystem-level lifecycle replacement, runtime-optimization flexibility, structured redundancy modeling, and standardized service ecosystems.
Universal modular slots. Planners dynamically allocate power and battery modules within a unified chassis. Operational integrity requires at least one active power module and at least one battery module.
What sets the M90S apart
Unity power factor utilization
A unity output power factor (1.0 PF) means full use of installed electrical capacity, where legacy modular platforms commonly run a reduced 0.8–0.9 PF and force oversizing. The result is higher usable capacity per installed kVA, tighter infrastructure-density planning, and less electrical-system oversizing.
Integrated maintenance continuity
An integral maintenance-bypass framework allows service without interrupting protected loads, with safe maintenance-isolation workflows and no dependency on an external bypass panel — reducing service-disruption exposure and improving centralized-infrastructure reliability.
Single-phase vs. three-phase
Choose modular single-phase when
- Facility electrical service remains split-phase
- Aggregated load density exceeds distributed-UPS practicality
- Phased infrastructure growth is required
- Modernization must avoid electrical reconstruction
Three-phase becomes appropriate when
- Infrastructure density exceeds practical single-phase aggregation limits
- Electrical-room design supports higher-capacity centralized continuity
- Enterprise-scale infrastructure expansion is anticipated
Need three-phase power? See the Xtreme Power M90C modular three-phase UPS →
Modular lifecycle modernization
Centralized modular UPS architecture enables structured modernization: phased subsystem renewal instead of full system replacement, lower operational-disruption risk, standardized spare-parts frameworks, predictable long-term capital planning, and continuity-aligned maintenance methodologies.
This lifecycle model aligns continuity infrastructure with contemporary facility-engineering practice.
The M90S modular tiers
A standardized framework that scales with infrastructure demand while maintaining platform consistency:
Specifications by tier
Every M90S frame shares the same online double-conversion core, unity power factor, and 6 kW modular building block. The frames differ in slot count, capacity, display, and form factor:
| Specification | M90S-2S | M90S-4S | M90S-6S ★ | M90S-12S |
|---|---|---|---|---|
| Slots | 2 | 4 (2 universal + 2 battery) | 6 (4 universal + 2 battery) | 12 universal |
| Capacity | 6 kW | 6–12 kW | 6–24 kW | 6–48 kW |
| Capacities | 6 kW | 6 / 12 kW | 6 / 12 / 18 / 24 kW | 6–48 kW (6 kW steps) |
| Display | LCD power metering | 5.7″ graphic LCD | 5.7″ graphic LCD | 10″ color touch LCD |
| Per-module LCD | — | Yes | Yes | Yes |
| Redundancy | — | N+1 capable | N+1 capable | N+1 capable |
| Form factor | 19″ rack (6U) or tower | Floor-standing | Floor-standing | Floor-standing |
| Receptacle panels | Up to 1 | Up to 2 | Up to 4 | Terminal connections |
| Enclosure (W×D×H) | 17.3″×31.5″×10.5″ (rack) | 17.4″×33.7″×33″ | 17.4″×33.7″×45.5″ | 23.6″×36″×79.1″ |
M90S-12S: full 48 kW output requires 240/120V service; at 208/120V the maximum is 42 kW. N+1 redundancy is configured within installed slot capacity and is not implied at a frame’s fully-populated maximum.
Shared across every M90S frame
| Topology | Online double-conversion, unity power factor (kVA = kW) |
|---|---|
| Efficiency | Up to 98% in ECO mode, 93% in online mode |
| Input / output | 208/120V or 240/120V single-phase, 50/60 Hz auto-sensing (2PH+N+G in / 2PH+N out) |
| Modules | 6 kW power & battery modules, both 16.3″W × 24″D × 5.2″H; hot-swappable (4S/6S/12S) |
| Battery | ±96 VDC nominal (12S adds a ±120 VDC option); up to 8 battery modules per power module |
| Maintenance bypass | Integral — no external bypass panel required |
| Communications | RS-232, USB, EPO, dry contacts, plus intelligent slot(s) for optional Web/SNMP, Relay, or Modbus cards |
| Approvals | UL-1778 (TÜV), cUL, FCC Class A, RoHS; TAA compliant |
| Environment | 0–40 °C, up to 5,200 ft, < 58 dBA at 1 m |
| Warranty | 3-year electronics + 3-year battery (USA & Canada); 5-year extended option |
Plan with confidence
Build continuity that scales with your facility
Define the modular continuity architecture aligned with your facility modernization strategy, infrastructure growth trajectory, and operational resilience objectives.