Description
The Vertiv Liebert PSI5-1100SRT2ULI is a high-performance, line-interactive UPS designed for edge IT, network closets, and space-constrained racks requiring reliable power protection and long service life. Equipped with advanced lithium-ion battery technology, this 2U rack/tower UPS delivers faster recharge times, extended battery lifespan, and reduced maintenance compared to traditional lead-acid solutions.
With a 0.9 output power factor, the PSI5 provides more usable power to support servers, network switches, storage devices, and critical electronics. Its pure sine wave output, wide input voltage range, and programmable outlet groups ensure stable operation during power disturbances while optimizing runtime for essential loads.
The compact 2U short-depth chassis supports flexible rack or tower deployment and includes rack-mount hardware for easy installation. Backed by a 5-year warranty on both the UPS and battery, the PSI5-1100SRT2ULI delivers dependable, low-TCO power protection for modern IT environments.
| Specification | Details |
|---|---|
| Brand | Vertiv |
| Product Line | Liebert PSI5 |
| Model | PSI5-1100SRT2ULI |
| UPS Topology | Line-Interactive |
| Form Factor | 2U Rack / Tower Convertible |
| Power Capacity | 1100VA / 990W |
| Output Waveform | Pure Sine Wave |
| Output Power Factor | 0.9 |
| Battery Type | Lithium-Ion (LiFePO4) |
| Recharge Time | Up to 100% in approx. 2 hours |
| Runtime (Full Load) | Approx. 6 minutes |
| Runtime (Half Load) | Approx. 12 minutes |
| Input Voltage Range | 75–150 VAC |
| Nominal Voltage | 120 VAC (user-selectable) |
| Transfer Time | 4–6 ms typical |
| Total Output Receptacles | 6 × NEMA 5-15R |
| Programmable Outlet Groups | 2 |
| Management Interfaces | USB, IntelliSlot (optional network card) |
| Display | Rotatable LCD |
| Rack Depth | Approx. 10.6 in (270 mm) |
| Warranty | 5 Years (UPS and Battery) |
| Equipment Protection Plan | Up to $400,000 |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
