Vertiv PSI5-1500RT120TAA 1500VA Rack-Mount Line-Interactive UPS
Overview
The Vertiv PSI5-1500RT120TAA is a 1500VA/1350W rack-mount uninterruptible power supply built for commercial and government deployments that require both runtime protection and TAA compliance. Line-interactive topology with automatic voltage regulation means the unit actively corrects sags and surges without switching to battery — keeping connected equipment running cleanly through the brownouts and voltage excursions common in commercial building electrical systems. If you're deploying NVRs, network switches, or access control servers in a 1U rack footprint and need power conditioning alongside battery backup, this is the unit to evaluate. The PSI5-1500RT120TAA (often searched as PSI5 1500RT120TAA) ships as a TAA-compliant product, making it eligible for federal, state, and education procurement vehicles where country-of-origin requirements apply.
Key Features
- 1500VA / 1350W Power Rating: At a 0.9 power factor, this unit delivers usable wattage on par with its VA rating — unlike older units with 0.6 or 0.7 power factors that force you to derate heavily. A rack with a 24-port PoE switch (80W), a 16-channel NVR (60W), and a managed firewall (40W) sits well within headroom, leaving capacity for expansion without oversizing the UPS.
- Line-Interactive Topology with AVR: Automatic voltage regulation corrects both high- and low-voltage conditions using buck/boost circuitry before the battery is ever touched. In facilities with noisy power (shared electrical with HVAC, compressors, or elevators), AVR extends battery life significantly because routine voltage events don't draw down the cells.
- Up to 96% Efficiency in Normal Mode: Running at 96% efficiency means lower heat output and reduced energy cost compared to double-conversion online UPS units that typically operate at 88–94%. For a 24/7 security rack, that efficiency delta compounds to real dollars on the annual power bill — and less heat means less stress on co-located equipment.
- 120 VAC Input / Output — NEMA 5-15P Input Plug: The 5-15P plug mates directly with standard 15A branch circuits, so installation requires no special wiring or dedicated circuits in most commercial environments. The 6 x 5-15R output receptacles cover the typical mix of rack equipment without requiring a PDU intermediate.
- 6-Outlet Output Configuration: Six NEMA 5-15R receptacles give you discrete outlet control across your rack draw — useful when the load mix includes devices with different runtime priorities (NVR stays on battery longest; monitors or non-critical gear can be shed first if the unit supports outlet grouping).
- TAA Compliant: TAA compliance satisfies Trade Agreements Act requirements for federal agency procurement, GSA Schedule purchasing, and state/local government contracts that mirror federal sourcing rules. If your project is a government security installation, this is a meaningful spec that eliminates a compliance review step.
- UL 1778 / c-UL-us Listed, FCC Part 15 Class B: UL 1778 is the UPS-specific safety standard — not a generic electronics listing. c-UL-us covers both US and Canadian markets. FCC Part 15 Class B confirms the unit meets residential/commercial EMI limits, so it won't introduce interference into co-located radio or wireless equipment in the rack.
- Operating Temperature Up to 40°C: 40°C (104°F) ceiling means this unit tolerates poorly cooled IDF closets and equipment rooms that run warm in summer months. Most comparable units are rated to 40°C as well, but it's worth confirming — some budget units derate capacity or shorten battery life above 25°C.
- Rack Form Factor — 3.5 in H × 17.2 in W × 20 in D: The 3.5-inch height is a 2U profile, which fits standard 19-inch rack enclosures. At 20 inches deep, verify your rack's usable depth before ordering — shallow-depth wall enclosures (typically 18 inches) may not accommodate this unit without door interference.
Integration & Compatibility
The PSI5-1500RT120TAA operates on 120 VAC and outputs via six NEMA 5-15R receptacles, making it compatible with the standard power draw of most North American commercial security hardware — NVRs, PoE switches, access control panels, and servers. The input NEMA 5-15P plug connects to any standard 15A circuit, and the unit's rack-mount UPS form factor integrates into 2U of a standard 19-inch enclosure. For deployments using Vertiv power protection infrastructure sitewide, the PSI5 line pairs with Vertiv monitoring software for runtime and load tracking. The TAA-compliant designation ensures this unit satisfies procurement requirements under the Trade Agreements Act, applicable to federal and many state-level contracts. For broader network equipment protection planning, pair this UPS with appropriately rated surge protection on any lines feeding sensitive equipment outside the UPS's receptacle set. Buyers sizing UPS capacity for multi-camera systems should consult a UPS sizing and runtime guide to match VA/watt ratings to actual load calculations before purchase.
Frequently Asked Questions
Q: Is the PSI5-1500RT120TAA TAA compliant?
A: Yes. The PSI5-1500RT120TAA is TAA compliant, making it eligible for federal agency procurement, GSA Schedule purchasing, and state/local government contracts that require Trade Agreements Act compliance.
Q: What output receptacles does the PSI5-1500RT120TAA provide?
A: The unit provides 6 x NEMA 5-15R output receptacles at 120 VAC. The input connection is a NEMA 5-15P plug, compatible with standard 15A branch circuits.
Q: What is the efficiency rating of the PSI5-1500RT120TAA?
A: The PSI5-1500RT120TAA operates at up to 96% efficiency in Normal Mode, which reduces heat output and operating costs compared to double-conversion UPS alternatives.
Q: Will the PSI5-1500RT120TAA fit in a standard 19-inch rack?
A: Yes. The unit measures 3.5 inches high (2U), 17.2 inches wide, and 20 inches deep — compatible with standard 19-inch rack enclosures. Verify your rack's usable interior depth before mounting, as shallow-depth enclosures under 20 inches may cause door clearance issues.
Q: What safety certifications does the PSI5-1500RT120TAA carry?
A: The unit is UL 1778 listed, c-UL-us Listed (covers both US and Canadian markets), and FCC Part 15 Class B certified for EMI compliance in commercial and residential environments.
Q: What is the maximum operating temperature for the PSI5-1500RT120TAA?
A: The PSI5-1500RT120TAA is rated for operation up to 40°C (104°F), suitable for warm equipment rooms and IDF closets that don't maintain data-center-grade cooling.
The spec I keep coming back to on the PSI5-1500RT120TAA is the 96% efficiency rating in Normal Mode. On a unit that's running 24/7 protecting a security rack, that's not a marketing number — it's the difference between a UPS that runs cool and quiet in a closet for years and one that's always warm to the touch and shortening battery life through sustained heat stress. At 1350W of real usable wattage, there's enough headroom to protect a full-featured NVR, a managed PoE switch, and an access control server on a single unit without pushing into the danger zone.
Technical Highlights:
- Line-Interactive AVR: Voltage correction happens through the buck/boost circuitry, not the battery — so the 6 x NEMA 5-15R outlets stay clean through sags and surges without cycling battery cells on every brownout. In commercial buildings with shared electrical, this is the topology that keeps batteries healthy past the 3-year mark.
- TAA Compliance: For integrators working government contracts, this eliminates a sourcing documentation step. The PSI5-1500RT120TAA satisfies TAA requirements out of the box — no country-of-origin waiver research needed.
- 2U / 20-inch Depth Profile: At 3.5 inches tall and 20 inches deep, this unit fits most standard 2-post and 4-post racks. The 42.6 lb weight is real — plan your rail kit accordingly and don't mount this in an unsupported 2-post rail without verifying weight rating.
Deployment Considerations:
- The NEMA 5-15P input plug limits you to 15A branch circuits at 120V — max continuous draw should stay under 1,440W (80% of circuit capacity) when factoring in the UPS load plus anything else on that breaker.
- Depth is 20 inches — measure your rack's usable interior depth, not just the rail spacing. Wall-mount enclosures rated for 18-inch depth will not close with this unit installed.
This unit is the right fit for a government or education security installation where TAA compliance is non-negotiable and the rack load falls in the 600–1,100W range — enough real wattage headroom to protect the core security stack without oversizing into a higher-capacity unit that costs more and runs less efficiently at partial load.
