Major Components

3.3Automatic Voltage Regulator

The Automatic Voltage Regulator (AVR) protects connected equipment from power spikes, sags and other abnormalities by raising (boosting) or lowering (bucking) the output voltage as needed. This keeps the UPS output voltage within the connected equipment’s tolerance and accommodates wide utility voltage fluctuations without utilizing the batteries.

3.4Battery Charger

In Normal mode, the Battery Charger converts utility AC power into regulated DC power to float charge the battery. It is continuously charging the battery whenever the UPS is plugged into a power outlet and utility power is within acceptable limits - even if the UPS is turned Off.

3.5Battery

The PowerSure PSI utilizes valve-regulated, nonspillable, lead acid batteries. To maintain battery design life, operate the UPS in an ambient temperature of 68°F to 77°F (20°C to 25°C). Optional external battery cabinets are available to extend battery run times.

3.6Inverter—1000/1440 Models Only

In battery mode operation, the inverter utilizes the DC output of the battery and inverts it into pre- cise, regulated, sinewave AC power.

3.7DC-to-DC Converter—1920/2200/3000 Models Only

The DC-to-DC Converter utilizes energy from the battery system and raises the DC voltage to the optimum operating voltage for the Bi-Directional Converter. This allows the Bi-Directional Converter to operate continuously at its optimum efficiency and voltage, thus increasing reliability.

3.8Bi-Directional Converter—1920/2200/3000 Models Only

In normal operation, the Bi-Directional Converter changes utility AC power into regulated DC power to “float charge” the battery system. This converter is continuously charging the battery whenever the UPS is plugged into a power outlet and utility power is within acceptable limits—even if the UPS is turned Off. When utility power fails, the Bi-Directional Converter draws energy from the battery through the DC-to-DC Converter and inverts it into a regulated sinewave supplying power to con- nected equipment.

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Liebert 1000 - 3000VA 60 Hz 120V user manual Automatic Voltage Regulator, Battery Charger, Inverter-1000/1440 Models Only
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1000 - 3000VA 60 Hz 120V specifications

The Liebert 1000 - 3000VA 60 Hz 120V is an uninterruptible power supply (UPS) designed to protect critical electronic equipment and ensure uninterrupted operation in various settings. Ideal for small to medium-sized businesses, the Liebert UPS offers reliable power protection with its compact and efficient design.

One of the main features of the Liebert 1000 - 3000VA is its advanced battery technology. Equipped with high-performance sealed lead-acid batteries, this UPS ensures long-lasting power backup while requiring minimal maintenance. The smart battery management system intelligently monitors battery health, extending overall battery life while providing precise notifications for replacement, thus optimizing operational efficiency.

Another critical characteristic is its online double-conversion technology. This feature provides consistent and clean power by converting incoming AC power to DC and then back to AC again. This process effectively eliminates any electrical noise or power fluctuations, protecting sensitive electronics from interruptions or damage caused by power surges, spikes, or drops. As a result, workloads can operate without concern for potential power issues.

The Liebert UPS is designed with user-friendliness in mind. Featuring a clear LED display, it allows users to easily monitor performance metrics such as load level, battery health, and runtime status. In addition, the intuitive control panel simplifies operation and navigation through settings, making it accessible to users without extensive technical knowledge.

This UPS also offers flexibility with multiple outlet options. The Liebert 1000 - 3000VA includes a combination of NEMA outlets, providing compatibility with various equipment types, from servers and routers to networking devices and communications equipment. This versatility ensures that it meets diverse power requirements within any environment.

Moreover, the compact form factor enables installation in tight spaces while maintaining robust performance. Its efficient design facilitates heat dissipation, ensuring optimal operation without overheating.

The Liebert 1000 - 3000VA 60 Hz 120V UPS delivers excellent protection for critical equipment across various industries, including telecommunications, healthcare, and finance, ensuring operational continuity. With its advanced features, reliable technologies, and user-centered design, it stands out as a reliable choice for any organization seeking to safeguard its power supply infrastructure.
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