Xtreme – E91L – 20000 – 20 kVA – Three Phase Online UPS

Xtreme Power E91 UPS — 30–40 kW, 208/120V Three-Phase, Unity Power Factor

The Xtreme Power E91 provides reliable three-phase, true online double-conversion power protection for edge facilities, small data centers, network closets, and industrial control systems. Featuring unity output power factor (1.0 PF), the E91 delivers full real-power capacity—supporting up to 25% more usable kW than legacy 0.8 PF UPS systems for high-density critical loads.

A 4.3″ color touchscreen LCD provides at-a-glance access to alarms, interactive one-line diagrams, and UPS operating status. External battery cabinets are available to extend runtime as needed. The 30 kW and 40 kW models are engineered for high reliability, efficiency, and simplified serviceability—with no rear service clearance required, allowing wall-adjacent installation to save valuable floor space in tight equipment rooms.

Key Features & Benefits

• Unity Power Factor (1.0 PF) — Delivers full real-power capacity to support high-density IT and industrial loads.
• True Online Double Conversion — Continuous isolation from input power disturbances for clean, regulated output.
• High Efficiency — Up to 94% in online mode and 98% in ECO mode to reduce energy and cooling costs.
• Rear clearance not required — Front-service design supports space-saving installation against the wall.
• Touch LCD Display (4.3″) — Real-time UPS status, alarms, and one-line power flow visibility.
• Dual or Single Input Design — Separate rectifier and bypass inputs (factory jumpers installed for single-input applications).
• Maintenance Bypass Switch — Front-accessible bypass enables service without load interruption.
• Frequency Converter Mode — Selectable 50 Hz / 60 Hz output for international deployments.
• External Battery Packs — Extend runtime for longer backup requirements.
• UL, cUL, FCC Compliant — Meets industry standards for safety and emissions.

At-a-Glance Specifications

Share your load (kW), voltage, and required runtime and we’ll help you select the right E91 model and battery configuration for your site.