The Xtreme Power Conversion M90S-6S, configured for 18 kW output, and the Toshiba 3000 SP Series 18 kW UPS (30S0D018KHXH) are modular, true online, double-conversion UPS systems designed to protect mission-critical IT, network, and edge infrastructure operating at 208/120 V or 240/120 V single-phase.
While both platforms support scalable architectures and full 18 kW usable output, the M90S-6S differentiates itself with higher-energy base batteries, integrated maintenance bypass, flexible receptacle and mounting options, and a significantly smaller cabinet footprint, simplifying installation, service, and long-term ownership.
18 kW Modular Online UPS Comparison
| Feature | XTREME POWER M90S-6S (18 kW) | Toshiba 3000 SP Series 18 kW (30S0D018KHXH) | M90S Advantage |
| UPS Capacity (Usable Power) | 18 kVA / 18 kW (unity PF) | 18 kVA / 18 kW (unity PF) | Equivalent rated usable output |
| Internal Battery Runtime (est.) | ~9 min @ 18 kW | ~7 min @ 18 kW | Higher-energy base battery |
| Scalability / Redundancy | Scales to 24 kVA / 24 kW or 18 kVA N+1 | Scales to 24 kVA / 24 kW or 18 kVA N+1 | Equivalent scalability; M90S includes integrated service features |
| Maintenance Bypass | Standard, integrated | External maintenance bypass required | Lower installed cost and fewer accessories |
| Receptacle Options | Yes | No | Easier installation and field flexibility |
| Extended Runtime Options | Internal + external batteries; up to 6+ hours | Limited to internal batteries only | Greater runtime flexibility |
| Rack / Tower Mounting | Rack or tower (M90S-RMK) | Tower only | Broader deployment flexibility |
| System Dimensions (W × D × H) | 17.4″ × 33.7″ × 45.5″ | 23.6″ × 41.2″ × 58″ | Smaller footprint and lower height |
| Certifications & Compliance | UL, cUL, TAA Compliant | UL, cUL (TAA varies by configuration) | Clear positioning for regulated markets |
| Warranty Coverage | 3 years (electronics & batteries) | 3-year onsite warranty | Onsite service optional with Xtreme |
Printable Comparison PDF
Download the Full Comparison PDF
https://xpcc.com/wp-content/uploads/Xtreme-M90S-6S-18kW-Toshiba-3000-SP-Series-30S0D018KHXH-Comparison.pdf
Where the M90S-6S Excels
- Full 18 kW usable output with higher-energy base batteries
- Integrated maintenance bypass included as standard
- Smaller cabinet footprint and lower height for easier placement
- Rack or tower mounting flexibility
- Internal and external runtime scalability for long-duration backup
- Built-in TAA compliance for federal and regulated procurements
When Toshiba 3000 SP May Be a Fit
- Toshiba-standardized environments
- Applications that require tower-only deployment
- Designs where external maintenance bypass cabinets are acceptable
Who Should Choose Which
Choose Xtreme Power Conversion M90S-6S if you need:
- A compact 18 kW modular UPS with higher baseline runtime
- Integrated service bypass to reduce install cost and accessories
- Flexible receptacle and mounting options
- Extended runtime scalability beyond internal batteries
- Clear TAA compliance positioning for regulated markets
Choose Toshiba 3000 SP if you need:
- Alignment with an existing Toshiba UPS ecosystem
- Tower-only deployment with onsite warranty coverage
- A traditional modular architecture with external bypass accessories
Typical Applications
- Enterprise and edge data centers
- Healthcare and laboratory environments
- Education and government infrastructure
- Commercial and specialty power installations
- Modular UPS deployments requiring growth flexibility
Plan with Confidence
Request a Quote or Configuration Review
Xtreme Power Conversion
Phone: (800) 582-4524
Email: sales@xpcc.com