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  • Liebert PSP UPS Brochure

  • Liebert PSP UPS Run Time Chart

  • Liebert PSP Specifications Guide

  • Liebert Power Solutions


Liebert PSP Stand-by UPS, 350-650VA

Emerson Network Power

Liebert PSP is an economical, full featured UPS that delivers cost-effective power protection in a compact package.

The Liebert PSP UPS provides battery-backed outlets and a surge protection-only outlet. The UPS battery offers four minutes of backup power at full load ample time to shut down protected equipment if an outage occurs.

The Liebert PSP is available in: 350 and 500VA at 120VAC; and 500 and 650VA at 230 VAC.

Liebert PSP UPS provides:
  • Three battery-backed UPS outlets
  • One surge protection-only outlet
  • Data Line surge protection
  • USB port
  • Liebert MultiLink software
  • and a two year warranty

The Liebert PSP is ideally suited for:

  • Desktop Computers
  • Point of Sale Terminals
  • Small Routers and Bridges
  • Other desktop PC peripherals


Higher Availability

  • Provides up to four (4) minutes of battery backup time at full load
  • Protects against spikes and power surges 
  • Full sequenced battery testing to ensure batteries are available when needed
  • Alerts user with advance warning of UPS shutdown 
  • Has RJ-45 port for data line surge protection 

Run Time Chart for Liebert PSP 230V

Lower Total Cost of Ownership

  • Two-Year replacement warranty
  • Optional one year warranty extension
  • Comes with a bundled Liebert Multilink Software for remote alerts and automatic shutdown

What is in the Box?

Shutdown software and a USB cable are also included, to allow remote alerts and automated graceful shutdown of the connected equipment.

What is in the box?


  • Offers three (3) battery-backed UPS outlets, and one surge protection-only outlet differentiated by color
  • Comes with a USB port and USB cable for easy interface
  • Easy to manage UPS with User replaceable batteries


FAQ - Frequently Asked Questions

How long can a Liebert PSP provide backup power for one PC?

A typical PC and LCD monitor consume 200VA or 120Watts

PSP500MT3-230U 15 minutes
PSP650MT3-230U 15 minutes

What communication interface does Liebert PSP Provide?

  • Liebert PSP comes with USB communication port.
  • Windows built-in power management functions provide monitoring of UPS status and manage the automatic orderly shutdown of the computer if  a power outage ever exceeds the battery capacity of the UPS.

Can Liebert PSP have additional USB or RS232 ports?

  • Liebert PSP comes with only one USB port. It can only communicate with one PC.

What are the advantages of surge-only outlets?

  • Non-critical and high power consumption equipment should connect to surge-only outlets so that critical equipment connected to battery-protected outlets can last longer during power outages.

What is the warranty period of Liebert PSP?

  • Standard micro UPS warranty (usually 2 years) applies

What sets Liebert PSP apart from competition?

  • Wider input voltage window of 160-286VAC
  • Black color design matches desktop PC
  • Small foot print
  • Liebert PSP is compatible with the Liebert Multilink software

Technical Specifications


Six Questions to Ask When Implementing a Data Center Infrastructure Management (DCIM) Solution

Data center managers have been challenged to maintain or increase IT availability, server utilization and efficiency in the face of rising costs and demands. One strategy to help address these challenges is virtualization, which increases server utilization and enables greater energy efficiency.

But virtualization also makes it more difficult to predict the demand on physical systems at any given time. As a result of the uncertainty in physical system demand, the data center manager is compelled to reserve a resource buffer against overload at peak capacity.

A holistic DCIM approach provides new insights into the relationships between facilities and IT infrastructure components, enabling data center managers to better optimize their data center resource consumption.

These are the questions Emerson Network Power recommends data center managers ask before deploying a DCIM solution:

1. What are the critical infrastructure assets in my data center and what are their respective mission interdependencies? An inventory repository can provide the data center manager with a “reality check” of today’s high-value assets, as well as context in the data center plan for tomorrow. This forward-looking insight gives a continual business-oriented view into these critical assets allowing better return-on-investment (ROI) on assets as well as freeing up data center budget for other compelling priorities—a top of mind concern for data center managers.

2. If asked by my management, could I quickly retrieve a comprehensive monitoring and analysis report of all the assets in my data center, and would this report identify bottlenecks? An effective DCIM solution should monitor all space, power and cooling attributes within the data center environment. To avoid an environmental-based operational failure, the DCIM solution should provide reports that enable the data center manager to take proactive action. The ability to report these data center conditions should be available on-demand to the data center manager.

3. Can my data center manage day-to-day workloads with flexibility while servicing on-demand needs as they arrive for my company? The DCIM solution should provide process workflow that can perform:

  • Scenario development—the ability to model changes before they go into production,
  • Nested processes that list steps that must be completed before an action is approved,
  • Measurement against service level agreements (SLAs), which are standard or custom metrics for measuring success, and 
  • The ability to provision into underutilized space, power and cooling capacity. This function should recommend optimal placement for devices based on their unique requirements and the existing load/capacity in the infrastructure.

4. Does this DCIM solution provide the trend analysis and intelligence needed for my team to deliver a comprehensive capacity management plan? To gain control of the current and future usage of data center resources, DCIM solutions should provide data center managers with insight into: 

  • Projection pipelines—what projects are in various stages of approval and what the impact will be on the infrastructure, and 
  • Trending for current and projected utilization (curves based on historical usage). For example, data center management should be able to tell when capacity or cooling will run out, based on utilization trends.

5. What intuitive web-based executive summary and planning tools are provided in the solution? DCIM solutions should provide configurable web-based dashboards and analytics standard within the product. Automating the operational intelligence gathering and reporting through a comprehensive web-based dashboard enables an executive summary that becomes the single source of truth into DCIM and planning. 

6. Will the DCIM solution align with IT and business services? Aligning IT service to address business objectives and needs is paramount. Any DCIM solution must enable data center management to align their respective resource consumption with their current ITSM, ITIL and BSM strategies.

“Data center managers are under more pressure than ever to achieve higher capacities with greater efficiency and less risk of downtime,” said Steve Hassell, president of the Avocent business of Emerson Network Power.“

A holistic DCIM strategy is a data center manager’s best partner in meeting the stringent business demands in a modern-day data center environment.

To successfully implement a DCIM strategy, data center managers must be on the lookout for the best family of hardware, software and services that allows them to address the critical infrastructure gap

Documentation & Downloads

Which UPS is right for you? - Click the banner to proceed.
  • Liebert PSP UPS Brochure 

  • Liebert PSP UPS Run Time Chart

  • Liebert PSP UPS Specifications Guide

  • Liebert Power Solutions Overview

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