Specifications

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Liebert STS2/PDU Static Transfer Switch2/
Power Distribution Unit
Features Of The Liebert STS2/PDU Include:
True dual-bus power distribution switches
automatically or manually between two
AC power sources.
Computer-grade grounding automatically
establishes a single point ground to meet major
manufacturers’ recommendations and the
requirements of the National Electric Code.
Fully compatible with the non-linear loads
of modern computer systems and other
electronic equipment.
Built-in metering and alarm annunciation with
communication to Liebert SiteScan
®
Web
centralized monitoring.
Compact single cabinet conserves valuable
floorspace compared to non-packaged solutions.
Single cabinet design reduces installation
time and cost.
The unit can be easily relocated to protect your
investment.
UL Listed as a Complete System to meet safety
requirements for fast, hassle-free inspection and
building code approvals.
A choice of distribution options to fit site
requirements.
Combines Power Distribution And Automatic Switching.
With a single, space-saving unit, the Liebert Static Transfer Switch2/
Power Distribution Unit combines the switching capabilities
of the STS2 with the benefits of a proven power distribution unit.
Liebert designed the STS2/PDU to bring you a distribution system that
will close the power delivery loop in your critical facility. It offers the
benefits of a custom-tailored power system, with the convenience and
cost savings of a pre-packaged, factory-tested unit.
Housed in a single, self-contained cabinet, it combines distribution,
computer-grade grounding, isolation, and power monitoring, as well as
dual-source switching, to provide the protection your vital computer or
communications equipment demands.
Available in capacities from 250 to 800 amps, the Liebert STS2/
PDU offers flexible expansion capabilities to fit growing sites. The
packaged system approach of the Liebert STS2/PDU is convenient
and space-saving, reducing installation time and cost compared to a
conventional approach using multiple interconnected components.
Liebert Power Monitoring Capabilities
The operation of the Liebert STS2 and
Liebert STS2/PDU can be monitored using:
Liebert Nform
™
Monitoring System.
Liebert SiteScan
®
Web Centralized
Monitoring System.
Liebert Universal Monitor and Remote
Power Monitor Panels.
Third-Party Monitoring Systems.
For more information, see pages 44 and 45.
Power Distribution Systems
39