Vertiv PSI5-1500RT120 Liebert PSI5 2U Rack/Tower UPS, 1500VA/1350W, 120V

Keep critical IT, security and surveillance systems online with the Vertiv Liebert PSI5-1500RT120 UPS. This Vertiv line-interactive UPS delivers 1500VA/1350W of reliable, pure sine wave backup power at 120V, providing clean, consistent power to servers, network switches, storage and VoIP gear during outages or utility disturbances. Built-in Automatic Voltage Regulation (AVR) corrects voltage sags and surges between 83–159V without engaging the battery, extending runtime and reducing maintenance costs. The compact 2U rack/tower form factor with a rotatable LCD makes it ideal for network closets, media rooms and small data centers where space and visibility matter. For security and surveillance deployments, the PSI5 protects cameras, recorders and monitoring stations from outages and electrical noise that can corrupt recordings or interrupt monitoring. Add the optional communication card to integrate with Vertiv Trellis Power Insight for centralized monitoring of multiple UPS units across your estate. Backed by a 2-year Vertiv warranty, the PSI5 is a practical choice to safeguard critical infrastructure—order now or contact us for a quote and specify the communication option for remote monitoring.

• Continuous, clean power for critical systems: 1500VA/1350W pure sine wave output protects servers, VoIP, security and surveillance equipment from data loss and downtime.
• AVR extends battery life and uptime: automatic voltage regulation corrects brownouts and over/under-voltage (83–159V) without draining the battery.
• Flexible rack or tower deployment: compact 2U form factor with a rotatable LCD simplifies installation and status monitoring in network closets and small data centers.
• Remote monitoring ready: optional communication card enables centralized monitoring via Vertiv Trellis Power Insight for improved asset management and fault response.
• Service-friendly design: <6 ms transfer time, hot-swappable sealed lead‑acid batteries and multiple NEMA outlets minimize downtime and simplify maintenance.