Front view of Liebert PSI5 UPS showing LCD display panel and ventilation design

Advanced LCD Display for Real-Time Power Monitoring

The Liebert PSI5's intelligent LCD interface provides instant visibility into critical UPS parameters and system status. The intuitive control panel displays battery level, load percentage, and operational mode, enabling proactive power management and quick system assessment. The front-mounted display integrates seamlessly with the unit's sleek tower design, making it ideal for both office and data center environments.

Technical Specifications

  • LCD display with real-time status monitoring
  • Three-button interface for easy navigation
  • Integrated cooling vents for thermal management

Applications

  • Data center power monitoring
  • IT infrastructure management
  • Network equipment protection
Runtime chart showing load capacities and duration for Liebert PSI5 UPS

Detailed Load Capacity and Runtime Specifications

The comprehensive load chart demonstrates the PSI5's impressive power management capabilities. From full load operation to extended runtime at lower capacities, the specifications clearly outline performance expectations across various usage scenarios. This detailed information enables precise capacity planning and load management.

Technical Specifications

  • 1500VA/1350W maximum capacity
  • Scalable runtime based on load
  • Detailed performance metrics

Applications

  • Capacity planning
  • Runtime calculation
  • Load management

Product details

General Information
Manufacturer

Vertiv

Manufacturer Part Number

PSI5-1500MT120

Brand Name

Liebert

Product Series

PSI5

Product Model

PSI

Product Name

PSI5-1500MT120 UPS

Product Type

Line-interactive UPS

Technical Information
AVR

Yes

Plug/Connector Type

NEMA 5-15P

Receptacle Type

NEMA 5-15R

Receptacle Detail

5 x NEMA 5-15R

Dataline Protection

RJ-45
RJ-11

Transfer Time

4 ms

Phase

Single Phase

Application/Usage

Electronic Device
Data Center
Network Closet
Mission Critical Equipment
Education
Office
Home

Power Description
Load Capacity

1500 VA/1350 W

Input Voltage

120 V AC

Input Voltage Range

75 V AC - 146 V AC

Output Voltage

125 V AC
120 V AC
115 V AC
110 V AC
100 V AC

Input Frequency

65 Hz

Output Frequency

60 Hz

Waveform Type

Pure Sine Wave

Interfaces/Ports
Serial Port

No

Network (RJ-45)

Yes

EPO Port

Yes

USB (HID Compliant) Port

Yes

Battery Information
DC System Voltage

12 V DC

Number of Batteries

4

Battery Characteristics

Valve-regulated, Non-spillable

Battery Chemistry

Lead Acid

Battery Size

12V

Battery Capacity

9000 mAh

Backup/Run Time (Full Load)

6 Minute

Backup/Run Time (Half Load)

18 Minute

Typical Battery Recharge Time

8 Hour

Hot Swappable

Yes

Environmental Conditions
Maximum Operating Temperature

104°F (40°C)

Storage Temperature

5°F (-15°C) - 122°F (50°C)

Maximum Operating Elevation

9842.52 ft

Operating Humidity

20% - 90%

Storage Relative Humidity

20% - 90%

Physical Characteristics
Height

8.7

Width

5.7

Depth

18.9

Rack Height

1U

Form Factor

Tower

Weight (Approximate)

40.10 lb

Miscellaneous
Package Contents

  • PSI5-1500MT120 UPS
  • USB Cable
  • Safety Manual
  • Quick Installation Guide

Software Included

Power Insight 2.2

Energy Star

No

Environmentally Friendly

Yes

Environmental Certification

RoHS
REACH

Country of Origin

China

TAA Compliant

No

Warranty
Limited Warranty

2 Year

Included in the Box

  • icon_list|psi5-1500mt120 ups|PSI5-1500MT120 UPS Main unit icon

    PSI5-1500MT120 UPS

  • icon_list|usb cable|6ft USB cable icon

    USB Cable

  • icon_list|safety manual|Safety Manual Documentation icon

    Safety Manual

  • icon_list|quick installation guide|Quick Installation Guide Documentation icon

    Quick Installation Guide

FAQs

What is the power capacity and runtime of the Liebert PSI5 UPS?
The Liebert PSI5 UPS offers 1440VA/1350W capacity with 6 minutes of runtime at full load and 18 minutes at half load. It features pure sine wave output and can handle loads from electronic devices, network closets, and small data centers. The unit includes 5 NEMA 5-15R outlets for device connection.
What voltage protection features does the Liebert PSI5-1500MT120 provide?
The Liebert PSI5 provides comprehensive voltage protection through Automatic Voltage Regulation (AVR), handling input voltages from 75V to 146V AC without using battery power. It offers pure sine wave output with adjustable voltage settings (100V, 110V, 115V, 120V, and 125V AC), and features a fast transfer time of 4ms to protect against power outages, brownouts, sags, and surges.
What are the battery specifications and maintenance features?
The UPS contains 4 hot-swappable 12V valve-regulated, non-spillable lead acid batteries with 9000 mAh capacity. The typical recharge time is 8 hours. The batteries are user-replaceable, and the hot-swap capability allows for battery replacement without powering down connected equipment. The AVR technology helps extend battery life by reducing battery usage during voltage fluctuations.
What connectivity options does the Liebert PSI5 UPS offer?
The PSI5 features multiple connectivity options including a USB (HID Compliant) port, network protection (RJ-45), phone line protection (RJ-11), and an EPO port. While it doesn't have a built-in serial port, it's compatible with an optional Vertiv Liebert Unity communication card for remote monitoring of up to 50 UPS systems using the free Vertiv Trellis Power Insight Application.
What are the environmental operating specifications?
The UPS operates in temperatures up to 104°F (40°C) with humidity ranges of 20-90%. It can be installed at elevations up to 9,842.52 feet. Storage temperature range is 5°F (-15°C) to 122°F (50°C) with the same humidity range of 20-90%. These specifications ensure reliable operation across various installation environments.

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Manufacturer Vertiv Vertiv
Number of Battery & Surge Outlets N/A N/A
Transfer Time 4 ms 4 ms
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Backup/Run Time (Full Load) 6 Minute 8 Minute
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