Long-runtime power for 208–240V

The T91i is designed for environments where outages extend beyond typical UPS runtime expectations. Unlike rack UPS optimized for short-duration protection, it uses external battery systems and programmable charging to support multi-hour runtime — keeping infrastructure operational during extended outages or until backup generation is available. Online double-conversion topology ensures continuous conditioned power, isolating connected equipment from voltage disturbances and electrical instability across global 208–240 V environments.

What the T91i delivers

The 208–240V long-runtime tower tier

The T91i operates as the long-runtime tower UPS platform for 208–240 V infrastructure within distributed environments — typically deployed in floor-mounted or equipment-adjacent installations, across global commercial and industrial sites, and wherever runtime requirements exceed rack UPS capability. It is the 208–240 V counterpart to the 120 V T91.

Tower runtime or rack density?

Rack UPS systems are typically optimized for density and short-duration runtime. The T91i is designed for applications where runtime is the primary requirement — its tower form factor supports larger battery systems and higher charging capacity, enabling significantly longer backup durations. For rack-based runtime at 208–240 V, the P91g provides scalable runtime in a rack chassis.

120V deployments

For installations requiring 120 V output, the T91 provides the same long-runtime online tower architecture at lower voltage, with models from 700 to 3000 VA.

Replace legacy long-runtime UPS

The T91i is commonly deployed as a replacement for extended-runtime UPS platforms — APC Smart-UPS Online (208–240V tower configurations), Eaton 9PX / 9SX extended-runtime systems, and Vertiv Liebert GXT tower deployments — providing a simplified long-runtime architecture with scalable battery expansion and predictable deployment across global infrastructure.

Two models, 2000–3000 VA

Both models deliver unity power factor (full watts = VA) with selectable 208/220/230/240 V output. Runtime is defined by battery configuration, with extended capability up to multi-hour operation. Detailed mechanical and electrical specifications (dimensions, weights, runtime tables, recharge times, receptacles) are published in the T91i datasheet.

Built for global extended-outage continuity

The T91i is deployed across hospitality systems, retail operations, laboratory equipment, network infrastructure, light industrial systems, and global commercial environments — particularly where extended runtime is required to maintain operations during prolonged outages.

Capacity guidance: 2000 VA for network infrastructure and laboratory equipment; 3000 VA for higher-load commercial and industrial systems.

T91i specifications

Specifications from the T91i product overview; dimensions, weights, runtime tables, recharge times, and receptacles are detailed in the T91i datasheet.

Documents and related links