Shipping included*
Exclusions
Additional shipping fees may apply in rare circumstances for deliveries outside standard service areas. In most cases, this only potentially affects shipments to the Northwest Territories and Yukon, as well as certain heavy or oversized items.
Liebert PSI5-1100RT120 UPS - 1100VA/990W Line Interactive Rack/Tower - 2U - AVR - Pure Sine Wave - 120V AC
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
The PSI5-1100RT120 operates on a single-phase line-interactive topology with a fast 6 ms transfer time, ensuring seamless switchover to battery power during outages. Its input accepts 120V AC with a wide range from 75V to 146V AC, while the output delivers a stable pure sine wave across adjustable voltages from 100V to 125V AC. This electrical performance is managed through an integrated AVR system that corrects minor voltage variations without draining the battery, extending overall system lifespan.
Network management readiness is provided via an RJ-45 port, allowing for the addition of an optional communication card to enable remote monitoring and control. The LCD status panel rotates for optimal viewing angles, displaying vital metrics such as load percentage, input/output voltage, and battery charge level. Energy Star certification confirms its efficiency, and RoHS compliance ensures environmentally responsible construction.
Key Product Advantages
This UPS delivers enterprise-grade power protection in a compact, versatile form factor, ideal for safeguarding servers, networking gear, and critical electronic devices. Its combination of high-efficiency design, user-friendly monitoring, and flexible installation options makes it a reliable choice for business continuity.
Enhanced Power Quality
Automatic voltage regulation and pure sine wave output ensure clean, stable power to sensitive equipment, preventing damage from brownouts, surges, and electrical noise.
- Corrects voltage fluctuations without battery use
- Pure sine wave compatible with active PFC power supplies
- Protects against data corruption and hardware stress
Operational Flexibility
The 2U rack/tower design and hot-swappable battery allow for easy integration into existing infrastructures and maintenance without downtime.
- Mounts in standard 19-inch racks or stands upright
- Battery can be replaced while unit remains operational
- Rotatable LCD for clear viewing in any orientation
Deployment / Use Cases
The Liebert PSI5-1100RT120 is designed to protect a wide range of critical systems where power reliability is non-negotiable. Its 1100VA/990W capacity and six outlets support multiple devices simultaneously, making it effective for small to medium IT deployments.
Common applications include server racks, network closets with switches and routers, security systems, VoIP equipment, point-of-sale terminals, and storage devices. The unit’s pure sine wave output is particularly important for modern servers and networking hardware with active power factor correction, ensuring compatibility and preventing shutdowns or reboots during power events.
Server Room & Network Closet
Provides backup power for rack-mounted servers, network switches, and routers, maintaining connectivity and data integrity during outages.
Business Critical Systems
Safeguards POS terminals, security cameras, VoIP phones, and multimedia adapters, ensuring continuous operation in retail, office, and industrial settings.
Physical Profile
The UPS features a compact 2U rack-mountable chassis measuring 3.50" (88.90 mm) in height, 17.20" (436.88 mm) in width, and 16.10" (408.94 mm) in depth, fitting standard 19-inch server racks. Tower support stands are included for freestanding use on shelves or desktops. The design prioritizes efficient space utilization while providing adequate ventilation for reliable thermal performance during extended operation.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 3.50" (88.90 mm), 17.20" (436.88 mm), 16.10" (408.94 mm). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 17.20" (436.88 mm)
- Depth
- 16.10" (408.94 mm)
- Height
- 3.50" (88.90 mm)
What's in the Box
The package includes all necessary components for immediate deployment and setup.
Highlights
- 1100VA/990W line-interactive UPS with AVR for voltage stabilization
- Pure sine wave output compatible with sensitive server and network equipment
- 2U rack/tower form factor with included tower stands for flexible installation
- Six NEMA 5-15R outlets to power multiple devices simultaneously
- Rotatable LCD display for real-time status and runtime monitoring
- Hot-swappable battery design for maintenance without downtime
- Network-ready with RJ-45 port for optional remote management card
- Energy Star certified and RoHS compliant for efficiency and environmental responsibility
- Wide input voltage range (75V-146V AC) for reliable operation in varying power conditions
- 2-year limited warranty for added peace of mind
Specifications
| Specifications | |
|---|---|
| Manufacturer | Vertiv |
| Manufacturer Part Number | PSI5-1100RT120 |
| Brand Name | Vertiv Liebert |
| Product Series | PSI5 |
| Product Name | PSI5 1100VA/990W, 120VAC, Rack-tower |
| Product Type | Line-interactive UPS |
| Technical Information | |
| AVR | Yes |
| Plug/Connector Type | NEMA 5-15 |
| Receptacle Type | NEMA 5-15R |
| Receptacle Detail | 6 x NEMA 5-15R |
| Number of Battery & Surge Outlets | 6 |
| Transfer Time | 6 ms |
| Phase | Single Phase |
| Application/Usage | Server,Network Closet,Security System,Network Workstation,Large Network Peripheral,Storage Device,VoIP,Multimedia Terminal Adapter,POS Terminal,IT System,Business,Critical System,Network Bridge,Electronic Device |
| Power Description | |
| Load Capacity (VA) | 1.10 kVA |
| Load Capacity (Watt) | 990 W |
| Input Voltage | 120 V AC |
| Input Voltage Range | 75 V AC - 146 V AC |
| Output Voltage | 100 V AC,110 V AC,115 V AC,120 V AC,125 V AC |
| Waveform Type | Pure Sine Wave |
| Controls/Indicators | |
| Status Indicators | LCD Display |
| Interfaces/Ports | |
| Network (RJ-45) | Yes |
| Battery Information | |
| Backup/Run Time (Full Load) | 2 Minute |
| Backup/Run Time (Half Load) | 10 Minute |
| Hot Swappable | Yes |
| Typical Battery Recharge Time | 4 Hour |
| Physical Characteristics | |
| Height | 3.50" (88.90 mm) |
| Width | 17.20" (436.88 mm) |
| Depth | 16.10" (408.94 mm) |
| Rack Height | 2U |
| Form Factor | Rack/Tower |
| Miscellaneous | |
| Package Contents | PSI5 1100VA/990W, 120VAC, Rack-tower USB Type A To USB Type B Cable, 1.8 Meter (6 ft) In Length Printed Quick Start Guide with Safety Instructions CD Tower Support Stands |
| Energy Star | Yes |
| Country of Origin | China |
| TAA Compliant | No |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What is the power capacity of the Liebert PSI5-1100RT120 UPS?
The UPS provides 1100VA (1.10 kVA) and 990 watts of power capacity. This output is sufficient to support multiple servers, network devices, or critical business systems during power interruptions, with an efficient 0.9 power factor delivering more usable power to connected equipment.
Can this UPS be mounted in a server rack?
Yes, the PSI5-1100RT120 is designed for both rack and tower installation. It occupies 2U of rack space in a standard 19-inch rack, and includes tower support stands for freestanding use. This flexibility allows deployment in server rooms, network closets, or office environments as needed.
How many outlets does the UPS have and what type are they?
The unit features six NEMA 5-15R outlets, providing ample connectivity for servers, switches, routers, and other critical devices. All outlets support both battery backup and surge protection, ensuring comprehensive coverage for connected equipment.
What is the battery runtime under full and half load?
At full load (990W), the UPS provides approximately 2 minutes of backup runtime. At half load (495W), runtime extends to about 10 minutes. These figures allow for safe shutdowns or continued operation during short outages, with a typical battery recharge time of 4 hours after use.
Does this UPS support remote management?
The UPS includes an RJ-45 port for adding an optional communication card, enabling remote monitoring and management capabilities. This allows IT administrators to track power status, receive alerts, and control the unit over a network, enhancing oversight in distributed environments.
What type of power output does the UPS provide?
It delivers a pure sine wave output, which is essential for compatibility with modern servers, networking gear, and active PFC power supplies. This clean waveform prevents equipment damage, data corruption, and unexpected shutdowns, ensuring reliable performance during battery operation.
What power capacity is listed for this UPS?
The listed power specification is 1.10 kVA, which helps position the unit for the right load level and installation role.
How many outlets are available?
The product includes 6, which helps buyers understand how many connected devices it can support in its intended deployment.
| Qty | Price | Available |
|---|
