E91 Compact Facility Three-Phase UPS Platform

10kVA, 15kVA, 20kVA

208/120 VAC Three-Phase

Compact, efficient, and powerful three-phase UPS protection for edge facilities, small data centers, and industrial applications.

208 / 120 V Power Protection for Localized Infrastructure
10–20 kVA Centralized VRLA Architecture

The Xtreme Power Conversion E91 Series is a compact centralized three-phase online double-conversion UPS platform designed to support localized facility infrastructure across healthcare, industrial automation, commercial electrical systems, telecommunications, and distributed IT environments.

The integrated cabinet architecture with internal VRLA batteries and optional matching external battery cabinets supports predictable lifecycle maintenance planning and simplified deployment in space-constrained electrical-room installations.

Typical Deployment Environments

Compact three-phase UPS platforms in this capacity class are commonly deployed where localized infrastructure requires conditioned power protection without centralized data-center-scale UPS systems.

Typical applications include:

  • Healthcare imaging and clinical electrical rooms
  • Industrial automation and process control systems
  • Commercial facility electrical infrastructure
  • Distributed IT and edge computing environments
  • Telecommunications power rooms

These deployments typically prioritize compact footprint, predictable maintenance planning, and straightforward service accessibility.

Compact Centralized Three-Phase UPS Architecture

The E91 platform utilizes a compact centralized UPS cabinet architecture with integrated internal VRLA batteries to support simplified facility deployment and established lifecycle service models.

Optional matching external battery cabinets allow runtime expansion where infrastructure planning requires extended backup duration without transitioning to modular UPS architecture.

Platform Characteristics

  • Compact centralized three-phase UPS cabinet design
  • Internal VRLA battery architecture
  • Optional runtime expansion battery cabinets
  • Space-efficient electrical-room footprint
  • Established lifecycle maintenance model
  • Simplified retrofit deployment suitability
  • Predictable service intervention planning

Capacity Configuration

Capacity Typical Deployment Context Battery Strategy
10 kVA Small facility electrical rooms Internal batteries with optional expansion cabinets
15 kVA Imaging / automation infrastructure Internal batteries with optional expansion cabinets
20 kVA Commercial facility deployments Internal batteries with optional expansion cabinets

Compare E91 with alternative three-phase UPS platforms:
https://xpcc.com/e91-ups-comparisons/

Expanded Capacity Class Availability

For facility deployments requiring higher centralized capacity within the same architectural platform:

Explore E91 expanded capacity platform (30–40 kVA):
https://xpcc.com/products/e91_30-40k/

Lifecycle Maintenance Considerations

Centralized VRLA-based UPS architectures typically follow established maintenance planning models involving periodic battery replacement and routine service inspection intervals.

Infrastructure planners frequently evaluate lifecycle service predictability, electrical-room deployment simplicity, and long-term maintenance economics when selecting compact facility UPS platforms.

Infrastructure Planning Resources

Technical Resources

Detailed electrical and mechanical specifications are available in the specifications tab.

Plan Infrastructure with Confidence

Xtreme Power Conversion supports facility engineers, infrastructure consultants, and system integrators with UPS capacity planning, lifecycle maintenance modeling, and deployment architecture guidance.

Phone: 800-582-4524
Email: sales@xpcc.com

MODEL NUMBER E91-10K E91-15K E91-20K
CAPACITY Power rating 10kVA/10kW 15kVA/15kW 20kVA/20kW
INPUT Voltage / Range 208Y/120VAC or 220Y/127 +20/-15% VAC three-phase
Frequency 46–54Hz or 56-64Hz
OUTPUT Voltage / Frequency 208/120VAC or 220/127VAC / 50/60±0.1%
Overload capacity Up to 110% for 1 hour, 130% for 1 min, >130% for 1 sec
Efficiency up to 94% online mode or 98% ECO mode
INTERNAL BATTERY Battery type Sealed maintenance-lead acid
Battery quantity (40) 12V/9AH (60) 12V/9AH
Charging current 2A-12A 4A, 8A, 12A
PHYSICAL Dimensions (W x D x H) 9.9″ x 26.3″ x 32.3″ 11.9” x 34” x 40.2”
Weight 315 lbs 504 lbs 510 lbs
OPTIONALBATTERY PACK Model EBP09-2 / EBP09-5
Battery quantity and size (40) 12V 9AH / (100) 12V 9AH
Weight 310 lbs / 670 lbs
Dimensions (W x D x H) 11.9″ x 34″ x 40.2″
OPTIONAL PDU Model E91-PDU1 / E91-PDU2
Output receptacles (4) L21-20R each protected by a 20A breaker / (4) L21-30R each protected by a 30A breaker
ENVIRONMENT Operating temperature 32–104°F (0–40°C)*
Audible noise <60dB for 10kVA; <65dB
Altitude 5,200 ft above sea level*
APPROVALS UL, cUL, FCC, Energy Star 2.0
WARRANTY 2 years warranty (USA and Canada)
COMMUNICATIONS INTERFACE RS-232, EPO, USB, intelligent slot for optional cards (Web/SNMP, Relay/dry contact)
INCLUDED IN BOX User manual, RS-232 communication cable, USB cable
AVAILABLE OPTIONS External maintenance bypass, output distribution, external battery cabinets