unqualified to replace the battery, do not open battery door. Refer to qualified service personnel.

INTRODUCTION & SYSTEM DESCRIPTION

Congratulations on choosing the Liebert PowerSure™. It provides continuous, conditioned power to microcomputers and other data processing equipment.

Upon generation, AC power is clean and stable. However, during transmission, it may be subject to load variations or accidents which cause power problems like low voltage, voltage spikes, or complete power failure. These problems may interrupt computer operations, cause data loss, or even damage equipment.

The UPS provides protection from many of these disturbances. It smoothes out voltage variations and, in the event of complete power failure, it supports equipment long enough for an orderly shutdown. These compact UPS units are available in three ratings: 250, 400, and 600 VA. This manual includes specifications for each model.

Normally, the UPS filters and connects AC utility input power to its AC outputs; but when the UPS senses a power failure, it lights the battery LED (400 & 600 VA only) and provides AC power to equipment through a maintenance free, sealed, lead acid battery.

The UPS contains a counter which automatically initiates a 15-second battery test every 7 days and upon start-up. The UPS resets the counter after back-up operation, manual battery test, or if the UPS is switched OFF. The operator may perform a manual battery test by pressing the BATTERY TEST button on the back of 400 and 600 VA models.

A control circuit monitors power input and battery condition and upon sensing a fault, sounds an alarm and flashes a visual indication of the UPS status. In addition, the 400VA and 600VA UPS models have a communications port which enables the UPS to inform a computer equipped with SiteNet® software of the power failure. SiteNet® automatically saves data and performs an orderly shutdown. Cables and software are available as optional computer/LAN Interface Kits. Consult your dealer for the kit suitable for your application.

CONDITIONS OF USE: The utility receptacle must be within 6 feet of the UPS. This model utilizes a 110V to 120V AC 60 Hz supply voltage. Models are available for other supply voltages.

Your UPS is designed to protect only Communication and Data Processing equipment. Maximum load must not exceed that shown on UPS rating label. If uncertain, consult your dealer or representative.

Placing magnetic storage media on top of the UPS may result in data corruption.

CAUTION: This equipment complies with Part 15, Subpart B of FCC rules for Class B computing devices. Equipment operation in residential areas may cause interference to radio and TV reception. The operator must take necessary steps to correct interference.

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Liebert PS600-60S, PS400-60S, PS250-60S user manual Introduction & System Description
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PS400-60S, PS250-60S, PS600-60S specifications

The Liebert PS600-60S, PS250-60S, and PS400-60S are advanced power supply units designed to provide reliable power protection for critical equipment. These systems are vital for industries that require an uninterrupted power supply, such as data centers, telecommunications, and healthcare.

One of the standout features of the Liebert PS series is its robust design and high efficiency. The PS600-60S, with its 600VA capacity, offers a compact solution for smaller environments while still delivering reliable performance. The PS250-60S, with a 250VA capacity, caters to applications with less demanding power requirements, making it ideal for point-of-sale systems or telecommunications equipment. The PS400-60S, on the other hand, balances size and power, providing 400VA to meet moderate power needs effectively.

All models in the Liebert PS series leverage advanced technologies to ensure top-tier performance. They are equipped with sine wave output, which is crucial for sensitive electronic devices as it minimizes electrical noise and enhances performance. Additionally, the units feature automatic voltage regulation (AVR) that stabilizes output voltage, protecting equipment from surges and dips in power.

Another significant characteristic of the Liebert PS600-60S, PS250-60S, and PS400-60S is their user-friendly interface. Each model includes LED indicators that provide real-time information regarding the operational status, battery health, and load level. This feature allows users to monitor the unit easily, ensuring they can respond promptly to any potential issues.

Battery management is also a key feature in these models. They are equipped with intelligent charging technology that prolongs battery life and optimizes performance. The hot-swappable batteries allow for maintenance without disrupting the power supply, which is essential in critical environments.

In conclusion, the Liebert PS600-60S, PS250-60S, and PS400-60S power supply units are designed to offer reliable, efficient, and user-friendly solutions for power protection. Their combination of compact design, advanced technologies, and essential features makes them ideal for a vast array of applications, ensuring a stable power supply for sensitive equipment while enhancing overall operational efficiency.
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