Vertiv PSI5-1500RM1201UN Liebert PSI5 1500VA Rack Mount UPS, 1U

Protect critical IT, security and surveillance systems with the Vertiv Liebert PSI5 1500VA Rack Mount UPS — a compact 1U battery backup built for network closets, small data centers and equipment racks. This Liebert PSI5 UPS delivers reliable, pure sine‑wave output and a 0.9 power factor to maximize usable power for servers, PoE switches, NVRs and monitoring devices. Built‑in Automatic Voltage Regulation (AVR) stabilizes input between 83 and 159 VAC without engaging the battery, extending runtime and reducing battery wear during brownouts and voltage sags. With less than 6 ms transfer time and support for an optional communication card, you get fast, uninterrupted protection plus remote monitoring and SNMP integration for proactive alerts. The compact 1U form factor saves rack space while still providing 1500VA of clean, regulated power and a 5‑year limited warranty to lower your total cost of ownership. Ideal for powering security, surveillance and network equipment — order the Vertiv Liebert PSI5 1500VA Rack UPS today or contact us for volume deployment guidance.

• Rack‑friendly 1U design saves valuable cabinet space while protecting servers, network and security equipment
• Automatic Voltage Regulation (AVR) and 83–159 VAC regulation extend battery life and reduce downtime during brownouts and sags
• Pure sine‑wave battery output and <6 ms transfer time protect sensitive IT, surveillance and monitoring gear from data loss and equipment damage
• 0.9 output power factor delivers more usable power to connected devices for efficient load support
• Optional communication card support for remote monitoring and integration with network management and security systems
• Industry‑backed 5‑year limited warranty for long‑term reliability and lower total cost of ownership