E91 10-20kVA – Three-Phase Unity Power Factor UPS

Overview

The Xtreme Power E91 UPS delivers reliable three-phase double-conversion protection for edge facilities, small data centers, network closets, and industrial control systems.
With unity power factor (1.0 PF) output, the E91 supports up to 25 % more real power than conventional UPS systems. Its 4.3″ color touch LCD provides clear visibility of system status, power flow, and alarms.

Available in 10 kW, 15 kW, and 20 kW models, the E91 combines Energy Star 2.0 efficiency, compact footprint, and strong overload performance—ideal for energy-conscious environments that demand dependable, scalable protection.

Key Features & Benefits

• Unity Power Factor (1.0 PF) — Delivers full real-power capacity to high-density IT and industrial loads.
• True Online Double Conversion — Continuous isolation from all input power disturbances.
• Energy Star 2.0 Certified — Compliant with federal energy-efficiency standards.
• High Overload Capability — Operates at 110 % for 60 min, 130 % for 1 min, 150 % for 5 s.
• Dual or Single Input — Configurable rectifier and bypass inputs.
• 4.3″ Touch LCD Display — Displays one-line diagram, alarms, and power data.
• Frequency Converter Mode — Lock output to 50 Hz or 60 Hz for international deployments.
• High Efficiency — Up to 94 % (online), 98 % (ECO mode).
• External Battery Packs — Extend runtime for longer backup requirements.
• Maintenance Bypass Ready — Manual transfer to utility for service without downtime.
• UL, cUL, FCC Compliant — Meets global safety and emissions standards.
• 2-Year Warranty — Covers electronics and batteries (U.S. & Canada).

Applications

• Edge Facilities & Network Closets — Compact three-phase protection for edge servers and networking gear
• Small Data Centers & Server Rooms — Reliable backup for racks, switches, and storage arrays.
• Industrial Control & Automation — Clean power for PLCs, sensors, and manufacturing equipment.
• Broadcast & Pro AV Systems — Continuous uptime for studios, editing suites, and transmitters  Learn more ›
• Retail & Hospitality Environments — Protect POS systems, kiosks, and menu displays from downtime. Learn more ›
• Healthcare & Laboratory Electronics — Maintain stable power for medical and process equipment  Learn more ›

Competitive Comparisons

Xtreme E91 10–20 kVA – Eaton 9355 Comparison  Download PDF ›

Xtreme E91 10–20 kVA – Eaton 93E Comparison  Download PDF ›

Specifications

Why E91?

The E91 unites three-phase reliability, high efficiency, and true unity power factor in a compact, service-friendly design.
It provides enterprise-class protection for mission-critical loads—without the cost or complexity of larger systems.

→ Learn more about Unity Power Factor UPS

Related Products

• E91 30–40 kVA UPS – Higher-capacity three-phase systems for larger facilities.
• M90U Modular UPS – Scalable modular system for redundant infrastructure.
• M90LU Modular UPS – Configured for extended external battery systems.
• Li90 10–30 kVA UPS – Three-phase lithium-ion UPS with reduced footprint and longer battery life.

Contact Us

The E91 10–20 kVA UPS delivers Energy Star-rated, three-phase protection for edge, IT, and industrial environments.
Achieve greater efficiency, higher load capacity, and true unity power performance—in a compact, easy-to-service design.

800-582-4524  sales@xpcc.com  www.xpcc.com