Description
The Vertiv Liebert PSI5-750MT120N is a compact, high-performance line-interactive UPS designed to protect critical IT and network equipment in space-constrained environments. Delivering 750VA / 675W of pure sine wave output, this mini-tower UPS ensures reliable power protection for servers, network workstations, security systems, VoIP equipment, and POS systems.
Equipped with Automatic Voltage Regulation (AVR), the PSI5 maintains stable output during voltage fluctuations while extending battery life by reducing unnecessary battery usage. The integrated RDU120 network communication card enables remote monitoring, alerts, and graceful shutdown via SNMP and web-based management.
With quiet operation, hot-swappable batteries, and ENERGY STAR® efficiency, the Liebert PSI5-750MT120N is ideal for small IT deployments requiring dependable, manageable power protection without rack installation.
| Specification | Details |
|---|---|
| Manufacturer | Vertiv |
| Series | Liebert PSI5 |
| Model Number | PSI5-750MT120N |
| Form Factor | Mini Tower |
| Power Capacity | 750 VA / 675 W |
| Input Voltage | 120 VAC |
| Input Voltage Range | 75–146 VAC (without battery) |
| Output Voltage | Selectable 100 / 110 / 115 / 120 / 125 VAC |
| Output Waveform | Pure Sine Wave |
| Transfer Time | 4–6 ms typical |
| Efficiency | Up to 93% (buck/boost mode) |
| Battery Type | Valve-Regulated Lead Acid (VRLA) |
| Internal Batteries | 2 × 12V |
| Recharge Time | ~6 hours to 90% |
| Runtime (Half Load) | Approx. 16 minutes |
| Runtime (Full Load) | Approx. 6 minutes |
| Network Management | Integrated RDU120 SNMP/Web Card |
| Communications | USB, SNMP, Web Interface |
| Output Receptacles | NEMA 5-15R |
| Audible Noise | <45 dB (line mode) |
| Operating Temperature | 32°F to 104°F (0°C to 40°C) |
| Certifications | UL 1778, FCC Part 15 Class B |
| Application Use | Network closets, servers, workstations, 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
