Description
The Vertiv Liebert PSI5-800RT120N is a high-performance, line-interactive UPS designed to protect critical IT and network equipment in edge, branch, and small data center environments. Delivering 800VA / 720W of clean, reliable power with pure sine wave output, this UPS ensures compatibility with sensitive electronics and modern power supplies.
Its 2U rack/tower convertible design provides flexible installation options, while Automatic Voltage Regulation (AVR) corrects voltage fluctuations without unnecessary battery usage, extending battery life and improving efficiency. The integrated RDU120 network card enables remote monitoring and management via SNMP and web interfaces, making it ideal for distributed IT deployments.
With programmable outlet groups, hot-swappable internal batteries, and support for external battery cabinets, the PSI5-800RT120N delivers scalable runtime and intelligent power control to keep essential systems online and protected.
| Specification | Details |
|---|---|
| Brand | Vertiv |
| Product Line | Liebert PSI5 |
| Model | PSI5-800RT120N |
| UPS Topology | Line-Interactive |
| Power Capacity | 800 VA / 720 W |
| Form Factor | 2U Rack / Tower Convertible |
| Input Voltage | 120V AC |
| Output Waveform | Pure Sine Wave |
| Automatic Voltage Regulation (AVR) | Yes (Buck/Boost) |
| Network Management | Integrated RDU120 SNMP / Web Card |
| Outlet Configuration | NEMA 5-15R (programmable and non-programmable) |
| Transfer Time | 4–6 ms typical |
| Battery Type | Internal VRLA, Hot-Swappable |
| External Battery Support | Yes |
| Display | Rotatable LCD |
| Noise Level | <45 dBA (line mode) |
| Typical Applications | Servers, network closets, security systems, VoIP, storage |
| Warranty | Manufacturer Limited Warranty |
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
