



Xtreme Power Conversion E91 20kVA 208/120VAC Three-Phase Online Tower UPS
E91 UPS provides reliable three phase double conversion power for edge facilities, small data centers, network closets, and industrial applications.
E91 features unity output power factor to support up to 25% more critical loads than typical UPS systems. E91’s touch screen LCD allows vital monitoring with interactive power one-line, alarms and UPS status. External battery packs are available for longer runtimes.
Product Snapshot
- Available models: 10kW, 15kW, 20kW
- Unity power factor
- Approvals: UL, cUL, FCC, Energy Star 2.0
- 2 years electronics, 2 years battery warranty (USA and Canada)
Features
-
Touch LCD 4.3" - touch display provides vital information including status and alarms
- High Overload Capability - E91 provides protection during momentary overloads
- Unity Output Power Factor - provide more real capacity for high density loads
- Energy Star - 10,15 and 20kW models meet Energy Star 2.0
- Parallel Operation - up to three UPSs can be operated in parallel
-
Frequency Converter - lock output at 50Hz/60Hz
- Efficient Operation - operation at up to 94% in double conversion mode or 98% in ECO mode
- Dual or Single Inputs - E91 includes separate rectifier and bypass inputs. Input jumpers are preinstalled
- Maintenance Bypass - manually transfer critical loads from UPS power to utility power, enabling E91 maintenance
Recent News
Single-Phase vs. Three-Phase UPS: What Growing Businesses Get Wrong
As businesses grow, so do their power demands. What once worked for a small server room or office network can quickly become inadequate as more...
How Heat Affects Data Centers and Why Your UPS System Is at Risk
As temperatures rise and computing demands continue to grow, heat has become one of the most serious threats facing modern data centers, server rooms, and...
Spring Facility Check: Don’t Forget Your Lighting Inverter
As winter begins to fade and facilities start their spring maintenance routines, many teams focus on HVAC systems, generators, and electrical inspections. While these...