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Vertiv Liebert PSI5-750MT120 PSI5 UPS - 750 VA 675W 120V Line Interactive AVR Mini Tower UPS, 0.9 Power Factor
- POWER PROTECTION: The 750 VA UPS has AVR to correct power disturbances.
- MORE USABLE POWER: This single phase line interactive UPS has 0.9 output power factor.
- NO INSTALLATION: This plug-and play battery backup does not need installation or rack space.
- REMOTE MANAGEMENT CAPABILITY: Add a communication card to this UPS to monitor devices remotely.
- PROGRAMMABLE OUTLETS: Get 5 total outlets with 2 programmable outlets to prioritize critical loads.
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The Vertiv Liebert PSI5 uninterruptible power supply (UPS) is designed to protect and extend the life of your electronic devices in school, home and office. This 750VA UPS tower offers cost-effective protection from downtime and damage caused by power outages, brownouts, sags, surges or noise interference. Automatic Voltage Regulation (AVR) extends battery life and safeguards critical equipment. Voltage regulation is from 83 to 159 VAC without using the battery. With advanced pure sine wave output, this line interactive UPS ensures availability of critical IT applications like network closets and small data centers. This battery backup allows orderly shutdown of critical equipment. It takes less than 6 milliseconds transfer time to battery. Add an optional Vertiv Liebert Unity communication card and remotely monitor up to 50 UPS systems with free Vertiv Trellis Power Insight Application. It has a 2-year Vertiv UPS warranty with optional extensions for up to 5 years total coverage.
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Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Limited Warranty period (parts): 2 years
- Limited Warranty period (labor): 2 years
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- Support Phone: 1-800-543-2378
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The Vertiv Liebert PSI5-750MT120 is a 750 VA/675W, 120V line-interactive mini-tower UPS with AVR and five outlets, suited to home offices or small offices that need battery backup and power correction for equipment within its capacity.
Recommended For
- Small-office and network-closet operators who need line-interactive backup and voltage regulation for routers, switches, and other modest IT loads during brief power interruptions.
- People running a small NAS or office server who want battery time to save work or shut equipment down cleanly; the manufacturer’s runtime table lists about 17.7 minutes at 337.5 W and 6.1 minutes at the full 675 W rating.
- Desk-based workers with a computer and monitor whose priority is saving work and staying powered through a short outage, provided their combined load stays within the UPS’s 675 W capacity.
- Small-business IT teams that want to monitor a UPS remotely and are willing to add a compatible network communication card; the unit also has USB connectivity for local monitoring.
Real-World Use Scenarios
- During a brief outage while using a desktop or office workstation, the UPS can keep connected equipment powered long enough to save open work and shut down safely; available time depends on the connected load.
- For a small NAS or server, connecting the UPS and configuring compatible shutdown software can help prevent an abrupt power loss from interrupting work or file operations; setup and compatibility should be checked first.
- In a home office or small network closet, a user can put a modem, router, and other essential network equipment on battery backup so a short power interruption is less likely to immediately cut off local connectivity; runtime depends on the total load.
- Where household or office voltage fluctuates, the line-interactive UPS can correct some power disturbances without relying on battery backup for every variation, helping keep connected equipment supplied during those conditions.
- For a small business or edge-IT setup with several connected devices, the two programmable outlet groupings can help prioritize which equipment receives backup power when the UPS is running on battery.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Battery backup and power protection for connected equipment drawing up to 675W, with five NEMA 5-15R outlets |
| Capacity And Output | Rated for 750 VA and 675W, with 5.625A output current |
| Input Power | 120V AC nominal input, with a 75–146VAC input range and 55–65Hz frequency; connects through a NEMA 5-15P plug |
| Outlets And Output Voltage | Five NEMA 5-15R outlets; output is 120VAC and configurable to 100, 110, 115, or 125VAC |
| Battery | Two sealed lead-acid (VRLA) batteries; recharge takes 6–8 hours to recover 90%, with a stated average battery life of 5 years |
| Power Protection And Compliance | Surge protection rated at 1372 J (ANSI C62.41, Category A, Level 3); electronic overcurrent and short-circuit protection with latching shutdown; UL 1778 and c-UL-us listed |
| Operating Environment | Operating temperature: 32–104°F (0–40°C); storage temperature: −5–122°F (−15–50°C); humidity: 20–90% non-condensing |
| Form Factor And Dimensions | Mini tower form factor; 5.7 × 14.8 × 8.7 in; 24.7 lb |
| Model Identifiers | Liebert PSI5 series, model PSI5-750MT120 |