J90i 1U Lithium Rack UPS – High-Density Online Double-Conversion (1000–3000 VA, 208–240V)

The J90i Series is a 1U online double-conversion UPS designed for higher-voltage rack environments where space efficiency, thermal performance, and operational control are critical.

By integrating Lithium Iron Phosphate (LiFePO₄) batteries within a compact 1U architecture, J90i enables long service life, high-temperature operation, and reduced maintenance while delivering conditioned power directly at the equipment rack.

Key Specifications

• 1000 / 1500 / 2000 / 3000 VA
• 208 / 220 / 230 / 240V single phase
• Online double-conversion topology
• Lithium Iron Phosphate (LiFePO₄) battery
• 1U rackmount form factor
• Up to 50 °C operation
• Remote-switchable outlets
• 6-year warranty (U.S. & Canada)

Datasheet:
https://xpcc.com/wp-content/uploads/J90i-1-3kVA-Flyer.pdf

High-Density Rack-Level Power for Global Infrastructure

J90i is designed for distributed infrastructure operating on higher-voltage single-phase systems common in global deployments.

It enables localized UPS protection at the rack level, reducing reliance on centralized UPS systems while supporting standardized deployment across international environments.

Online double-conversion topology ensures continuous conditioned power independent of upstream electrical disturbances, while lithium battery architecture reduces maintenance and improves performance in elevated temperature environments.

For architecture context:
https://xpcc.com/rack-power-architecture/

Where J90i Fits in Rack Power Architecture

J90i operates as the rack-level continuity layer for 208–240V infrastructure within a distributed power architecture.

It is typically deployed:

• at the equipment rack for localized UPS protection
• across multi-site global infrastructure
• in telecommunications, industrial, and distributed IT environments

Within the Xtreme Power architecture:

• Rack-level UPS → J90i (this platform)
• Short-depth racks → J60Ci
• Runtime-focused UPS → P91g Li
• Facility-level UPS → Li90

J90i vs Conventional Rack UPS Platforms

Conventional rack UPS systems in this voltage range typically require 2U or larger form factors and rely on VRLA batteries with shorter service life and higher maintenance requirements.

J90i provides equivalent or greater protection in a compact 1U design while enabling higher energy density and longer lifecycle performance. Integrated outlet-level switching further reduces the need for external switching hardware.

This makes J90i well suited for high-density rack deployments across telecommunications, industrial, and global IT infrastructure.

Replace APC / Eaton 230V Rack UPS

J90i is commonly deployed as a replacement for higher-voltage rack UPS platforms including:

• APC Smart-UPS Online 230V (SRT RMXLI series)
• Eaton 9PX 230V lithium and VRLA models
• Vertiv Liebert GXT5 (230V) systems

Compared to these platforms, J90i provides:

• higher power density (1U vs 2U)
• integrated outlet-level switching
• longer lithium battery lifecycle
• improved performance in elevated temperature environments

Explore detailed comparisons:
https://xpcc.com/j90i-ups-comparisons/

Remote Power Control and Operational Resilience

J90i integrates remote-switchable outlets, enabling direct control of connected equipment without additional hardware.

This supports remote reboot, load sequencing, and recovery workflows across distributed and international infrastructure deployments, improving operational resilience and reducing the need for on-site intervention.

Runtime Architecture and Deployment Flexibility

J90i provides internal runtime for localized continuity and supports extended runtime through external lithium battery packs on 2000VA and 3000VA models.

This allows runtime to be aligned with application requirements while maintaining a compact 1U deployment.

Extended runtime guide:
https://xpcc.com/wp-content/uploads/J90-J90i-Extended-Runtimes.pdf

Typical Applications

J90i is deployed across telecommunications networks, industrial automation systems, AV infrastructure, distributed IT environments, and global enterprise deployments.

It is particularly well suited for high-density racks where space, control, and lifecycle performance are critical in 208–240V environments.

Capacity Guidance

Capacity selection is based on rack load and infrastructure design:

• 1000 VA → telecom and edge infrastructure
• 1500 VA → distributed control and automation systems
• 2000 VA → telecommunications and IT racks
• 3000 VA → commercial and industrial distributed systems

Runtime should be defined based on continuity objectives and redundancy strategy.

UPS sizing tool:
https://xpcc.com/selector

Xtreme Power Lithium Rack UPS Portfolio

J90i defines the high-density tier for higher-voltage rack environments:

• J60Ci → short-depth lithium UPS (230V)
• J90 → 120V high-density rack UPS
• J90i → 208–240V high-density rack UPS
• P91g Li → runtime-focused lithium UPS
• Li90 → facility-level lithium UPS

Technical Summary

Topology: Online double conversion
Capacity: 1000–3000 VA
Voltage: 208–240V
Battery: Lithium Iron Phosphate (LiFePO₄)
Form Factor: 1U rack / wall-mount
Runtime: Internal + optional external (2–3 kVA models)
Monitoring: Optional SNMP / web
Outlet Control: Remote switchable
Compliance: UL, cUL, FCC, TAA

Plan With Confidence

Xtreme Power Conversion supports consultants, facility engineers, and system integrators with lithium rack UPS standardization, distributed infrastructure architecture planning, and lifecycle modernization strategies.

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