About this UPS
Liebert PST5 850VA Battery Backup & Surge Protection
| UPC | 0812105029127 |
| 8-Outlets, 3 Year Warranty, LCD Display, Energy Star Certified | |
| General Information | |
|---|---|
| Manufacturer: | Vertiv |
| Manufacturer Part Number: | PST5-850MT120 |
| Manufacturer Website Address: | http://www.vertiv.com/ |
| Brand Name: | Liebert |
| Product Series: | PST5 |
| Product Model: | PST |
| Product Name: | PST5 850VA Wall/Desktop/Floor Mountable UPS |
| Marketing Information: |
Designed with easy controls for worry free operation, the Liebert ® PST5 UPS and battery backup features ample time for you to save your work in progress and complete an orderly shutdown for your equipment when you experience a power outage. |
| Packaged Quantity: | 1 |
| Product Type: | Standby UPS | Technical Information |
| Plug/Connector Type: | NEMA 5-15P |
| Receptacle Type: | NEMA 5-15R |
| Receptacle Detail: | 8 x NEMA 5-15R |
| Number of Battery & Surge Outlets: | 4 |
| Number of Surge-only Outlets: | 4 |
| Dataline Protection: | RJ-45 |
| Protection Type: |
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| Cord Length: | 6 ft |
| Transfer Time: | 8 ms |
| Phase: | Single Phase |
| Application/Usage: |
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Power Description |
| Load Capacity (VA): | 850 VA |
| Load Capacity (Watt): | 500 W |
| Input Voltage: | 120 V AC |
| Input Voltage Range: | 90 V AC - 145 V AC |
| Output Voltage: | 120 V AC |
| Input Frequency: | 60 Hz |
| Output Frequency: | 60 Hz |
| Waveform Type: | Simulated Sine Wave |
| Surge Energy Rating: | 316 J |
| Circuit Breaker: | Yes | Controls/Indicators |
| Status Indicators: | LCD Display |
Interfaces/Ports |
| Network (RJ-45): | Yes |
| USB: | Yes | Battery Information |
| DC System Voltage: | 12 V DC |
| Number of Batteries: | 1 |
| Battery Chemistry: | Lead Acid |
| Battery Capacity: | 7000 mAh |
| Backup/Run Time (Full Load): | 1.50 Minute |
| Backup/Run Time (Half Load): | 6 Minute | Environmental Conditions |
| Maximum Storage Elevation: | 49212.60 ft (15000000 mm) | Physical Characteristics |
| Color Family: | Black |
| Product Color: | Black |
| Height: | 3.82" (97.03 mm) |
| Width: | 12" (304.80 mm) |
| Depth: | 6.24" (158.50 mm) |
| Form Factor: | Desktop |
| Weight (Approximate): | 4.40 kg | Miscellaneous |
| Package Contents: |
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| Energy Star: | Yes |
| Country of Origin: | China | Warranty |
| Limited Warranty: | 3 Year |
Technical specifications
How long it'll keep your equipment up.
Manufacturer-specified runtime at typical loads. Real-world figures depend on battery age, ambient temperature, and load profile.
Estimate based on manufacturer-specified runtime curve. Real-world runtime varies with battery age, ambient temperature, and load profile.
Compatible accessories
Network management cards, rail kits, environmental sensors — verified compatible with this UPS line.
Before you order
How do I know this UPS will run my equipment?
Add up the wattage draw of every device you'll plug in (servers, switches, monitors). The UPS's wattage rating — not VA — is the number that matters. Aim for the UPS to run at 60–70% of capacity at full load: this gives headroom for inrush current and a meaningful runtime margin. Email us your equipment list and we'll size the right UPS within one business hour.
What's covered by the warranty, and how long does it last?
New units carry the full manufacturer warranty registered to you on receipt. The manufacturer handles claims directly via their North American support channel. Refurbished units are covered by our own 1-year UPSPLUSBATTERY warranty handled in-house in Canada.
Can I extend runtime beyond what's shown above?
Many Smart-UPS-class models accept an external battery pack (XBP) connected to the rear battery port. If this UPS shows "Extended Runtime Capable: Yes" in the spec grid above, an XBP is supported. Compatible XBPs and the runtime gain they deliver vary by model — contact us if you don't see the right XBP in our catalogue.

