Higher centralized capacity, same compact architecture

The E91 30–40 kVA defines the expanded-capacity category of compact centralized three-phase UPS for localized facility infrastructure. It provides reliable double-conversion power for edge facilities, small data centers, network closets, and industrial applications — integrating UPS and battery within a single cabinet so higher capacity can be deployed without the complexity, footprint, and cost of a modular system. It is selected where infrastructure planners need more centralized capacity while keeping predictable deployment and service models.

Single cabinet, wall-mountable, front-serviced

The platform integrates UPS electronics and VRLA batteries within one cabinet and is engineered to save floor space: the 30 and 40 kVA models install against the wall with no rear service clearance required. Cable entry is from the top or bottom at the rear, while terminations are made at the front for accessible service. Optional external battery cabinets expand runtime without introducing modular system complexity.

What the E91 30–40 kVA delivers

The expanded-capacity tier of the Xtreme Power family

The E91 30–40 kVA is the higher-capacity centralized facility UPS — above the compact E91 10–20 kVA and rack-level systems, and below modular and lithium facility platforms. It is deployed in electrical rooms supporting larger localized infrastructure where higher capacity is required but modular scalability is not.

Need smaller centralized capacity in the same architecture? See the E91 10–20 kVA.

Centralized VRLA vs modular and lithium

Modular UPS systems provide scalability and redundancy but add complexity, footprint, and cost. Lithium platforms prioritize reduced maintenance, longer battery life, and higher energy density at a higher upfront cost. The E91 30–40 kVA delivers a centralized VRLA architecture for applications where capacity requirements are defined and stable, eliminating modular expansion while simplifying installation and maintenance planning.

Comparing battery chemistries? See lithium UPS vs lead-acid UPS.

Three models, 30–40 kVA

All models share a single 23.6 × 36.3 × 65.6 in cabinet with unity power factor, online double-conversion topology, a 4.3-in touch LCD, and a 16 A adjustable charger. The E91-30K4 is an extended-runtime 30 kVA variant with additional internal batteries. Optional EBP10-5 external battery cabinets ((100) × 12V 580W, 11.9 × 34 × 40.2 in) extend runtime; external maintenance bypass and output distribution are also available.

Runtime by battery configuration and load

Estimated runtime in minutes at 50% and 100% load — from internal batteries through one or two EBP10-5 external battery cabinets.

Runtimes are shown in minutes and vary with battery age and site conditions. The E91-30K4 carries additional internal batteries for extended runtime at 30 kVA. Contact Xtreme Power at (800) 582-4524 or sales@xpcc.com for runtime sizing, or use the UPS sizing tool.

Where the E91 30–40 kVA is deployed

The E91 30–40 kVA is deployed across facilities requiring higher-capacity centralized UPS protection — healthcare imaging suites and multi-room clinical environments, industrial production and automation systems, commercial facility electrical infrastructure, telecommunications aggregation nodes, and distributed IT or micro data center environments. A 30 kVA system suits larger imaging or industrial electrical rooms, while 40 kVA supports broader commercial infrastructure and higher-density centralized loads, with runtime extended via external battery cabinets.

TAA-compliant facility power

The E91 is TAA compliant, supporting regulated healthcare, government, and commercial deployments requiring Trade Agreements Act compliance — alongside UL, cUL, FCC, and Energy Star 2.0.

E91 30–40 kVA specifications

Documents and related links