Vertiv PSI5-3000RT120LITAA 3000VA Lithium-Ion Line-Interactive Rack/Tower UPS
The PSI5-3000RT120LITAA is Vertiv's Liebert PSI5 3000VA/2700W lithium-ion UPS built for IT and security infrastructure that cannot tolerate downtime or wasted rack space. Running on a line-interactive topology with automatic voltage regulation, it absorbs common power disturbances — sags, swells, and brownouts across a 75–146VAC input range — without touching the battery, so the lithium-ion pack stays fresh for genuine outages. This is the TAA-compliant variant, making it a viable selection for federal and government-adjacent deployments where Trade Agreements Act sourcing is mandatory.
Overview
Line-interactive UPS designs occupy the practical middle ground between basic standby units (which don't regulate voltage at all) and double-conversion online units (which burn 5–10% of throughput in heat). The rack UPS category has largely shifted to lithium-ion at this power tier because of runtime-per-pound gains, longer calendar life, and significantly reduced replacement frequency compared to VRLA. The PSI5-3000RT120LITAA delivers all three. At 3.4 inches tall it fits a 2U slot with an L5-30P input and seven protected outlets — six NEMA 5-20R and one L5-30R — covering mixed-outlet load infrastructure without adapters on most ports. Consult the full Vertiv power protection catalog to compare runtime extension modules and matching PDUs for this chassis.
Key Features
- 3000VA / 2700W Lithium-Ion Runtime: Lithium-ion chemistry gives this unit a substantially better power-to-weight ratio than equivalent VRLA designs. At 53.5 lbs in 2U, you get 2700W of protected capacity without the floor-loading concerns of a larger valve-regulated pack. Expect meaningful runtime on partial loads — light server rooms and security recorder stacks typically see longer hold times than nameplate worst-case suggests.
- 98% Efficiency in Normal Mode: A UPS that wastes 5–8% of throughput as heat is a meaningful operational cost across a year of 24/7 runtime. The PSI5-3000RT120LITAA operates at up to 98% efficiency in normal (line-interactive) mode, so your cooling budget absorbs minimal additional load from the UPS itself. On a 2700W load, you're dissipating roughly 54W of UPS overhead at peak — versus 135–216W on a 95–92% efficient competitor unit.
- 75–146VAC Input Range (AVR): Automatic voltage regulation corrects browndowns to 75VAC and swells up to 146VAC — without switching to battery. Sites with chronic under-voltage (older buildings, generator-shared circuits, remote locations) drain VRLA batteries constantly; the PSI5's wide window keeps the battery for actual outages. Output defaults to 120VAC with user-selectable options at 100, 110, 115, and 125VAC — useful when powering imported or frequency-sensitive equipment.
- Pure Sinewave Output on Battery: Active PFC power supplies in modern servers and NVRs require pure sinewave input to operate cleanly — they can trip, throttle, or fail on the stepped approximations some line-interactive units produce. The PSI5-3000RT120LITAA outputs a true sinewave on battery, so video recorders, network switches, and rack servers all transfer cleanly without intervention.
- Hot-Swappable Battery Kits via Front Access: Battery replacement without a maintenance window or a second person to slide the unit out of the rack. Front-access hot-swap means the connected load stays powered during replacement — a practical requirement in 24/7 surveillance and security operations centers where scheduled downtime is a policy problem, not just an inconvenience.
- Rotatable LCD with Rack/Tower Flexibility: The control panel rotates to remain legible whether the chassis is installed horizontally in a rack or vertically as a tower. That flexibility matters in mixed-format equipment rooms and edge deployments where a full rack isn't always present.
- IntelliSlot UNITY Communications Card (Optional): The onboard USB port and EPO connector handle basic monitoring and emergency power-off. Add an optional Liebert IntelliSlot UNITY card and you gain SNMP and web-based remote management — enabling integration into data center infrastructure management (DCIM) platforms and enabling proactive battery-health alerting without a local visit.
- TAA Compliance: The PSI5-3000RT120LITAA carries TAA compliance, satisfying federal procurement requirements under the Trade Agreements Act. This is the correct model for GSA schedule orders, DoD facility deployments, and state/local government bids that mandate TAA-origin goods.
- Comprehensive Safety Listings: UN38.3 (lithium battery transport), UL 1778, c-UL-us, NOM, and FCC Part 15 Class B are all listed — a complete regulatory stack for US and Canadian commercial installations. The FCC Class B rating also means this unit won't generate RF interference that disrupts wireless access points or radio-frequency security systems operating in the same space.
Integration and Compatibility
The L5-30P input requires a matching 30A twist-lock circuit — verify your panel and whip before ordering if your existing infrastructure runs standard 5-20P feeds. The seven output receptacles (six 5-20R, one L5-30R) support most 1U/2U rack load combinations without needing plug adapters on the 5-20R ports. The PSI5-3000RT120LITAA pairs naturally with PoE network switches and NVR stacks in surveillance infrastructure, providing ride-through for camera feeds and recording continuity during outages. For managed deployments, pair with a Liebert IntelliSlot UNITY card and integrate into your SNMP management stack or DCIM tool of choice. Review rack-mount UPS selection guidance to confirm the load-matching math before specifying runtime expectations to end users.
Frequently Asked Questions
Q: Is the PSI5-3000RT120LITAA TAA compliant?
A: Yes. The PSI5-3000RT120LITAA is the TAA-compliant variant of the Liebert PSI5 3000VA lithium-ion line. It satisfies Trade Agreements Act sourcing requirements for federal, GSA, and government-adjacent procurement.
Q: Does the PSI5-3000RT120LITAA output a pure sinewave on battery?
A: Yes. The PSI5-3000RT120LITAA provides pure sinewave output while running on battery. This is important for loads with active PFC power supplies — including modern servers, NVRs, and managed network switches — which can behave erratically or fail to transfer cleanly on simulated/stepped sinewave UPS outputs.
Q: What input plug and outlet types does the PSI5-3000RT120LITAA use?
A: The input uses a NEMA L5-30P (30A twist-lock, 120VAC). Outputs are six NEMA 5-20R receptacles and one NEMA L5-30R. You will need a 30A twist-lock circuit for the input — confirm your panel and whip before installation.
Q: Can the batteries be replaced while the PSI5-3000RT120LITAA is running?
A: Yes. The PSI5-3000RT120LITAA supports hot-swappable battery kits via front-panel access, so battery maintenance does not require powering down the connected load or removing the unit from the rack.
Q: Does the PSI5-3000RT120LITAA support remote SNMP monitoring?
A: Not out of the box. It ships with USB and EPO connector interfaces. SNMP and web-based remote management require the optional Liebert IntelliSlot UNITY communications card, which installs in the unit's expansion slot.
Q: Is this UPS suitable for rack or tower deployment?
A: Both. The PSI5-3000RT120LITAA is a 2U rackmount chassis, but its LCD control panel rotates so it remains legible in tower orientation. This makes it adaptable for equipment rooms that don't have a full rack footprint.
The spec I always check first on a UPS like this is the input voltage range — and the PSI5-3000RT120LITAA's 75–146VAC AVR window is one of the widest in this power class. I've specified this unit for several security operations centers where the local utility has chronic browndown issues (one site routinely dipped to 88VAC during summer peak demand), and a 75VAC floor means AVR — not battery — handles those events. That matters because every unnecessary battery discharge on a VRLA unit costs you a cycle; on lithium-ion it's less critical, but preserving cycles still extends calendar life. The PSI5-3000RT120LITAA handles wide-swing utility without burning capacity.
Technical Highlights:
- 98% Normal-Mode Efficiency: At 2700W nameplate load, roughly 54W is lost as heat inside the UPS — versus 135–216W on a 92–95% competitor. In a sealed security closet, that delta changes whether you need a dedicated cooling circuit.
- Hot-Swap Front-Access Batteries: In 24/7 surveillance environments, scheduled downtime for battery replacement is often operationally impossible. Front-access hot-swap eliminates the maintenance window entirely — replace under load without removing the chassis from the rack.
- Pure Sinewave on Battery: Every modern NVR and managed switch ships with an active PFC supply. The PSI5-3000RT120LITAA's pure sinewave output means transfer to battery is silent — no load dropout, no fan-speed changes, no filesystem corruption risk on the recorder.
Deployment Considerations:
- The L5-30P input requires a dedicated 30A twist-lock circuit. This is the most common installation surprise — verify your panel has a 30A circuit available and that the whip from the PDU or wall to the unit has the correct connector before the unit arrives on site.
- SNMP monitoring is not included in the base unit. If your operations team expects remote battery-health alerts or integration into a DCIM platform, budget for the Liebert IntelliSlot UNITY card — without it, you're limited to USB-local monitoring and the front LCD.
The PSI5-3000RT120LITAA is the right call for a federal or state-government security operations center running mixed NVR/switch/server loads where TAA compliance is non-negotiable, utility quality is variable, and the 24/7 recording mandate makes any maintenance window a policy violation rather than just an inconvenience.
