Vertiv PSI5-1500MT120LI Liebert PSI5 Lithium-Ion UPS, 1500VA/1350W 120V AVR Mini Tower

Designed for edge and distributed IT environments, the Vertiv Liebert PSI5 Lithium-Ion UPS delivers reliable backup power to keep security, surveillance, monitoring and network equipment online through power disturbances. This line-interactive UPS provides 1500VA/1350W of usable power with AVR and pure sine wave output to protect sensitive servers, switches and DVR/NVR systems from voltage sags, spikes and harmonic distortion. Lithium‑ion chemistry gives up to a 10-year battery life and faster 1.9-hour recharge, cutting replacement frequency and lowering total cost of ownership compared to traditional VRLA units.

The compact mini-tower design fits network closets and edge racks, offering up to seven battery-backed NEMA outlets, programmable outlet control, RJ-45 dataline protection and remote monitoring via USB or SNMP. Hot-swappable batteries and a 5-year advanced replacement warranty reduce service windows and simplify maintenance for IT and security teams. With a 4 ms transfer time and robust EMI/RFI filtering, the PSI5 is suited for mission-critical monitoring and surveillance deployments.

Protect your edge, surveillance stations and network infrastructure—contact a Vertiv partner or add the Liebert PSI5-1500MT120LI to your procurement plan today.

• Extend runtime and reduce maintenance costs with lithium‑ion batteries that last up to 10 years—over twice the life of VRLA cells.
• Protect critical gear (servers, network switches, surveillance and security equipment) with AVR and pure sine wave output for clean, stable power.
• Maximize usable capacity: 1500VA/1350W with a 0.9 power factor to support denser edge and rack deployments.
• Flexible connectivity and management: up to seven battery-backed outlets, programmable outlets, USB and SNMP monitoring plus RJ-45 dataline protection.
• Minimize downtime with hot-swappable batteries, quick 1.9-hour recharge, and a 5-year advanced replacement warranty for faster field service.