1 Eaton® 9390 (100–160 kVA) UPS Installation and Operation Manual 164201604—Rev F
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The Eaton® 9390 UPS uninterruptible power supply (UPS) is a true online, continuous-duty, transformerless,
double-conversion, solid-state, three-phase system, providing conditioned and uninterruptible AC power to
protect the customer's load from all nine power failures. The Eaton 9390 UPS is available as a single module or
a multiple module parallel system (see 1.3 Basic System Configurations).
The Eaton 9390 online power protection system is used to prevent loss of valuable electronic information,
minimize equipment downtime, and minimize the adverse effect on production equipment due to unexpected
power problems.
The Eaton 9390 UPS continually monitors incoming electrical power and removes the surges, spikes, sags, and
other irregularities that are inherent in commercial utility power. Working with a building's electrical system, the
UPS system supplies clean, consistent power that sensitive electronic equipment requires for reliable
operation. During brownouts, blackouts, and other power interruptions, batteries provide emergency power to
safeguard operation.
The UPS system is housed in a single, free–standing cabinet with safety shields behind the door for hazardous
voltage protection. The cabinet matches the battery and distribution cabinets in style and color and can be
installed in line-up-and-match or standalone configurations. Figure 1 shows the Eaton 9390 UPS (100–160 kVA).
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Introduction
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