Description
The Vertiv Liebert PSI5-1100RT120N is a high-performance, line-interactive UPS designed to protect critical IT and network equipment from power disturbances. Delivering 1100VA / 990W of pure sine wave output, this UPS ensures compatibility with sensitive electronics such as servers, network switches, storage devices, and security systems.
Its convertible 2U rack/tower design provides flexible deployment, while built-in Automatic Voltage Regulation (AVR) corrects voltage fluctuations without unnecessary battery use, extending battery life. The included RDU120 network card enables remote monitoring and management via SNMP and web interface, making it ideal for distributed IT environments and network closets.
With hot-swappable batteries, programmable outlets, and support for external battery cabinets, the PSI5-1100RT120N delivers reliable uptime, scalable runtime, and enterprise-grade manageability in a compact footprint.
| Specification | Details |
|---|---|
| Brand | Vertiv Liebert |
| Model | PSI5-1100RT120N |
| UPS Type | Line-Interactive |
| Form Factor | 2U Rack / Tower Convertible |
| Power Capacity | 1100 VA / 990 W |
| Input Voltage | 120 VAC (configurable) |
| Output Voltage | 120 VAC (pure sine wave on battery) |
| Automatic Voltage Regulation | Yes (Buck/Boost AVR) |
| Transfer Time | 4–6 ms typical |
| Output Receptacles | NEMA 5-15R (battery & surge protected) |
| Network Management | Integrated RDU120 SNMP/Web Network Card |
| Battery Type | Internal VRLA, hot-swappable |
| External Battery Support | Yes |
| Audible Noise | < 45 dBA (line mode) |
| Efficiency | High-efficiency operation |
| Typical Applications | Servers, network closets, VoIP, storage, security systems |
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
