Vertiv PSI5-3000SRT120LIN Liebert PSI5 3000VA Lithium-Ion Line-Interactive Rack/Tower UPS 120V

Overview

The PSI5-3000SRT120LIN is a 3000VA/2700W lithium-ion line-interactive UPS from Vertiv's Liebert PSI5 series, built for IT closets, network equipment rooms, and surveillance infrastructure where both rack space and battery longevity matter. At 3U in a short-depth 16.92-inch chassis, it fits shallow rack enclosures that standard-depth UPS units cannot. The included RDU120 network management card gives you remote monitoring and shutdown capability out of the box — no hunting down an optional card after the fact. If you're speccing power protection for an enterprise UPS deployment, this unit's 8–10 year battery design life is the most operationally significant number on the datasheet.

Key Features

• Lithium-Ion (LiFePO4) Battery Chemistry: The LiFePO4 cell chemistry delivers an 8–10 year design life versus 3–5 years for VRLA lead-acid units. In a surveillance or network closet context, that means one planned battery refresh over the life of the equipment rather than two or three, and fewer unplanned failures from aged batteries during an actual outage.
• 3000VA / 2700W Capacity: At a 0.9 power factor, this unit doesn't trade paper VA ratings for real watt delivery — 2700W supports a fully loaded network rack, a multi-camera NVR system with PoE switch, or a mix of servers and storage without derating. Confirm your connected load is under 2700W continuous before you commission.
• Pure Sine Wave Output: Line-interactive topology with pure sine wave output protects active PFC power supplies (common in servers, workstations, and modern switching gear) from the voltage stair-stepping that modified sine wave UPS units produce. If your load includes any active-PFC equipment, pure sine wave is not optional — it's required.
• Automatic Voltage Regulation (AVR): The 75–146VAC input range handles brown-outs and sags without switching to battery. Sites with chronic voltage sag — older buildings, generator-backed circuits — will see significantly longer battery life because the unit corrects with the transformer, not the cells.
• 98.1% Operating Efficiency: At 98.1% efficiency in line mode, this UPS generates minimal heat and adds negligible cost to your power bill. For a 2700W-capacity unit running 24/7, the difference between 95% and 98.1% efficiency is roughly 84W of continuous heat load eliminated — meaningful in a closed rack or small IDF room.
• 9-Minute Full-Load / 20-Minute Half-Load Runtime: Nine minutes at 2700W full load is enough to execute a clean shutdown sequence for most server and NVR environments. Twenty minutes at half load (1350W) covers most planned generator transfer times. Runtime is not expandable via external battery packs on this model — size your load accordingly if you need longer ride-through.
• Hot-Swappable Batteries: Batteries can be replaced under load without shutting down connected equipment. For a surveillance or network environment with no maintenance window, this is the difference between a scheduled swap during business hours versus a 2 a.m. outage.
• 10 Output Outlets (9x 5-20R + 1x L5-30R): The outlet mix covers standard 5-20P loads across all nine 5-20R receptacles, while the single L5-30R supports higher-draw equipment or generator transfer connections. The L5-30R outlet is not a replacement for a full PDU — plan your outlet count before you finalize the rack layout.
• Selectable Output Voltage: Output voltage is configurable at 100/110/115/120/125VAC via the LCD panel. This supports non-North-American equipment imported into a US-voltage environment without needing an external transformer.
• RDU120 Network Management Card Included: Remote monitoring, SNMP integration, and automated shutdown scripts are available at commissioning — the RDU120 card is in the box, not a line-item upgrade. For rack power management in managed environments, this matters: most competitors charge separately for the network card.
• Rotatable LCD Display: The display rotates to remain readable in both rack and tower orientations. Minor detail, but practically useful when the unit is deployed tower-style in a floor cabinet and the display would otherwise face the wrong direction.
• Rack/Tower Convertible, Short-Depth Chassis: At 16.92 inches deep, this unit fits in network cabinets and 2-post open racks where a standard 24-inch-depth UPS cannot. The 3U form factor keeps it compact without sacrificing capacity. Consult your rack planning guide to confirm clearance before ordering.

Integration and Compatibility

The PSI5-3000SRT120LIN connects via USB for local monitoring and shutdown coordination with PowerAlert or third-party power management software. The included RDU120 card handles SNMP-based integration with network management systems. An EPO (Emergency Power Off) connector is present for facility-level integration with building management or data center control systems — useful in environments where a single EPO bus covers multiple racks. Output voltage selectability (100–125VAC) and the 10-outlet configuration make it compatible with a wide range of surveillance and IT loads. The unit meets UL 1642, UL 1973, UL 1778, and CSA 22.2 No. 107.3 — verify your specific facility code requirements before specifying.

Frequently Asked Questions

Q: What is the warranty on the PSI5-3000SRT120LIN?

A: The PSI5-3000SRT120LIN carries a 5-year advanced replacement warranty that includes the lithium-ion battery — not a separate battery warranty with a shorter term as is common with lead-acid UPS units.

Q: Can the batteries be replaced without shutting down connected equipment?

A: Yes. The PSI5-3000SRT120LIN features hot-swappable batteries, meaning battery replacement can be performed under load without powering down connected devices.

Q: Does this UPS include a network management card, or is it optional?

A: The RDU120 network management card is included in the box. SNMP monitoring and remote shutdown capability are available at commissioning without an additional purchase.

Q: What is the expected battery life on the PSI5-3000SRT120LIN?

A: The LiFePO4 lithium-ion battery is rated for an 8–10 year design life under normal operating conditions (32–104°F). This compares to 3–5 years for typical VRLA lead-acid UPS batteries.

Q: Is the PSI5-3000SRT120LIN suitable for shallow rack cabinets?

A: Yes. At 16.92 inches depth, the short-depth chassis fits in network cabinets and 2-post open racks where standard 24-inch-depth UPS units will not. The 3U height occupies minimal rack space.

Q: What output voltage options are available on the PSI5-3000SRT120LIN?

A: Output voltage is selectable at 100, 110, 115, 120, or 125VAC via the LCD interface, making it compatible with equipment requiring non-standard North American voltages without an external transformer.