Vertiv Liebert PSI5 208V, 5000VA Line Interactive 2U Rackmount UPS

When the power flickers or drops, your critical equipment can shut down, data can be lost, and productivity stalls. A reliable backup power source keeps everything running smoothly until the grid stabilizes. The 4250VA / 3825W UPS provides that safety net, delivering clean, uninterrupted electricity to protect servers, networking gear, and essential electronics in offices or small data centers.

Vertiv Liebert PSI5 208V, 5000VA Line Interactive 2U Rackmount UPS

The Vertiv™ Liebert® PSI5-5000RT208 is a 4250VA/3825W, 208V line-interactive UPS built for edge and distributed IT environments. This 2U rack/tower convertible chassis is 24.8 inches deep with a 0.9 output power factor (PF) and under 6ms transfer time. An LCD display enables quick status checks, and a programmable outlet segment reboots unresponsive devices or prioritizes critical loads. Add an optional network management card for remote monitoring, management, and firmware updates.

Key Features

• Power rating 4250 VA / 3825 W - handles demanding loads with confidence
• Input voltage range nominal 208 VAC, acceptable 150-281 VAC - tolerates wide fluctuations
• Output voltage fixed at 208 VAC (requires TDU for 100-125 VAC) - ensures consistent supply
• Efficiency up to 96 % in normal mode - saves energy and reduces heat
• Input wiring L6-30P, output wiring 4 × L6-30R - simplifies connection to multiple devices
• UL 1778, c-UL-us Listed, FCC Part 15, Class B - complies with safety and EMI regulations
• Line-interactive topology with automatic voltage regulation - protects against sags and surges

Specifications