Vertiv PSI5-2200RT120LIN Liebert PSI5 1920VA/1920W Lithium-Ion Line-Interactive UPS
Overview
The Vertiv Liebert PSI5-2200RT120LIN is a 1920VA/1920W, 2U rack/tower convertible critical power UPS built around a lithium iron phosphate (LiFePO4) battery — a meaningful departure from legacy VRLA designs that have defined data center and surveillance closet UPS deployments for decades. Line-interactive topology with automatic voltage regulation handles brownouts and sags without switching to battery, extending battery life and keeping your equipment on stable power through the voltage swings common in commercial buildings and industrial environments. Pure sine wave output ensures compatibility with active PFC power supplies found in servers, NVRs, and modern network switching gear. The RDU120 network management card ships included in the box, so you get remote monitoring and SNMP alerting without sourcing a separate accessory.
If you're speccing a rack UPS for a security or IT closet and want to eliminate the recurring cost of VRLA battery replacement every 3–5 years, the PSI5-2200RT120LIN warrants a close look. The LiFePO4 chemistry here is rated for a dramatically longer service cycle, and the hot-swappable, user-replaceable battery design means maintenance doesn't require a service call or rack downtime.
Key Features
- Lithium Iron Phosphate (LiFePO4) Battery: LiFePO4 chemistry offers a substantially longer cycle life than VRLA — relevant in always-on deployments like surveillance NVR closets or server rooms where battery replacement every 3–4 years adds up fast. It also charges faster, tolerates higher temperatures up to 104°F, and eliminates the sulfation failure mode common in lead-acid designs.
- 1920VA / 1920W Capacity at Unity Power Factor: The VA and watt ratings match 1:1 — a unity power factor — meaning you can load this UPS to its full 1920W without derating. Many competing units at 2200VA top out at 1600–1800W real output. This matters when you're calculating load for dense 1U servers or high-draw NVR appliances.
- Pure Sine Wave Output: Active PFC power supplies — standard in rack servers, enterprise switches, and NVR platforms — require a true sine wave to operate correctly. A simulated or stepped sine wave output on cheaper UPS units can cause instability, fan noise, or outright incompatibility. The PSI5-2200RT120LIN eliminates that risk.
- 98.5% Efficiency in Line Mode: At 98.5% line-mode efficiency, this unit wastes less than 30W of heat under typical loads — keeping your closet cooler and cutting operating cost compared to older UPS designs running at 92–95%. Over a five-year cycle in a 24/7 deployment, that difference in heat load and power draw is measurable on the electric bill.
- Runtime: 20 Minutes at Half Load / 9 Minutes at Full Load: Enough runway for a graceful shutdown sequence at full load, or sustained operation through a brief outage at half load. For sites where full-load runtime is critical, runtime extension modules can supplement capacity — confirm compatibility with Vertiv before ordering.
- Hot-Swappable, User-Replaceable Battery: When the battery eventually needs replacement, a technician can swap it without powering down protected equipment. No service contract, no waiting for a field engineer. This is a genuine operational benefit in live security or network environments where downtime has real consequences.
- 7 Output Receptacles (6x 5-20R + 1x L5-20R): The outlet mix handles standard NEMA 5-20 devices plus a twist-lock L5-20R for hardwired or higher-reliability connections. Programmable outlets let you assign sequenced shutdown priority or cycling to individual receptacles — useful for controlling NVR restart order or shedding non-critical loads first.
- RDU120 Network Management Card Included: Remote monitoring, SNMP/web-based alerts, and integration with network management platforms ship in the box. No separate card purchase required — a cost differentiator versus UPS platforms that charge for management card options.
- Input Voltage Range 75–146VAC: The wide input window means the UPS stays on utility power (and off battery) through significant voltage sags and swells — a practical advantage in facilities with variable power quality, reducing battery cycling and extending battery service life further.
- Output Voltage Selectable (100/110/115/120/125VAC): Field-adjustable output voltage accommodates equipment with tight input tolerances or international-origin hardware running on 120V infrastructure.
- EPO (Emergency Power Off) Connector: EPO support enables integration with building management or fire suppression systems that require a hard shutdown signal — a standard requirement in data center and commercial security system installations.
- Energy Star Certified: Relevant for deployments where building energy efficiency standards apply, and useful for LEED documentation in commercial construction projects.
Integration & Compatibility
The PSI5-2200RT120LIN integrates with SNMP-based network management systems via the included RDU120 card — relevant for NVR and server infrastructure deployments where centralized monitoring of power health is part of the architecture. The USB connectivity supports direct communication with a connected server for graceful shutdown scripting. The EPO connector enables building-system integration for emergency shutdown compliance. Input plug is NEMA L5-20P; verify your PDU or panel circuit matches before rack installation. The 2U form factor and convertible rack/tower orientation provides flexibility for both standard 19-inch rack deployments and freestanding tower installations where rack space is limited. Operating temperature range of 32°–104°F (0°–40°C) covers standard conditioned IT and security closet environments — not rated for unconditioned outdoor enclosures or high-heat plant floors.
Frequently Asked Questions
Q: What is the warranty on the PSI5-2200RT120LIN?
A: The PSI5-2200RT120LIN carries a 5-year advanced replacement warranty that includes the battery — an unusually comprehensive coverage term that reflects the longer service life of the LiFePO4 chemistry versus VRLA designs.
Q: Does the PSI5-2200RT120LIN output a pure sine wave?
A: Yes. The PSI5-2200RT120LIN produces a pure sine wave output, which is required for compatibility with active PFC power supplies found in rack servers, enterprise NVRs, and managed network switches.
Q: Is the network management card included, or does it need to be purchased separately?
A: The RDU120 network management card is included with the PSI5-2200RT120LIN. It provides SNMP-based remote monitoring and alerting without any additional purchase.
Q: Can the battery be replaced without shutting down protected equipment?
A: Yes. The PSI5-2200RT120LIN features a hot-swappable, user-replaceable battery. Protected equipment remains online during a battery swap, which eliminates maintenance downtime in live production environments.
Q: What input plug type does the PSI5-2200RT120LIN use, and what circuit is required?
A: The PSI5-2200RT120LIN uses a NEMA L5-20P input plug, requiring a dedicated 20A, 120VAC circuit. Verify your rack PDU or panel has a compatible L5-20R receptacle before installation.
Q: What is the runtime on the PSI5-2200RT120LIN at full load versus half load?
A: At full load (1920W), runtime is approximately 9 minutes — sufficient for a graceful shutdown sequence. At half load (~960W), runtime extends to approximately 20 minutes, providing meaningful bridge time through brief outages.
The spec that stands out to me most on the PSI5-2200RT120LIN is the unity power factor — 1920VA equals 1920W actual output. A lot of integrators size UPS units based on VA alone and end up underprovisioned because the real watt capacity is 20–25% lower. With this unit, what you see is what you get, and that simplifies load calculations considerably for NVR closets or edge server stacks.
Technical Highlights:
- LiFePO4 Battery Chemistry: Rated to 104°F operating temperature versus the 77°F sweet spot of VRLA — directly relevant in poorly cooled security closets where battery degradation has historically been a service call driver. Longer cycle life means the 5-year warranty term on this unit is credible, not aspirational.
- 98.5% Line-Mode Efficiency: At typical loads, you're dissipating under 30W as heat. In a 2U form factor sharing a rack with NVRs and switches already generating substantial heat, that matters. Older iron-core UPS designs at 92% efficiency can add 150W+ of waste heat in the same footprint.
- RDU120 Card Included: Most Vertiv UPS platforms at this price point sell the management card as a separate SKU. Having SNMP monitoring and web UI access out of the box changes the integration workflow — you can configure alerting thresholds before the rack goes live, not as an afterthought.
Deployment Considerations:
- Input plug is NEMA L5-20P — confirm your PDU or wall circuit has an L5-20R receptacle before the rack install date. Showing up with a standard 5-20 circuit is a common field mistake on this unit.
- Runtime at full 1920W load is 9 minutes. If your NVR and switch stack runs heavy, design your graceful shutdown scripts to complete within 6–7 minutes to leave margin. Don't count on 9 minutes of clean power if you haven't profiled actual load.
This unit is well-matched to a 4–8 camera IP surveillance deployment with a mid-range NVR, managed PoE switch, and access control panel sharing a 2-post open rack — where VRLA battery replacement cost and heat load from a less efficient UPS have been recurring friction points.
