Eaton 93E UPS (300/400 kVA, 380/400/415V) Installation and Operation Manual 1-1
Chapter 1 Introduction
The Eaton 93E 300/400kVA uninterruptible power supply (UPS) is a true online, continuous-duty, transformer-
free, double-conversion, solid-state, three-phase system, providing conditioned and uninterruptible AC power
to protect the customer's load from power failures.
The Eaton 93E 300/400 kVA online power protection system is used to prevent loss of valuable electronic
information, minimise equipment downtime, and minimise the adverse effect on production equipment due to
unexpected power problems.
The Eaton 93E 300/400 kVA 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 is housed in a single free-standing cabinet, with safety shields behind the door for hazardous voltage
protection. Figure 1-1 shows the Eaton 93E 300/400 kVA UPS.
Figure 1-1. Eaton 93E UPS (300/400 kVA)
Startup may be performed by the customer’s qualified electrical contractor for single (not
parallel) UPS installations without any accessory cabinets.
Startup and operational checks for parallel systems or installations with accessory
cabinets must be performed by an authorised Eaton Customer Service Engineer, or the
warranty terms may become void. This service is offered as part of the sales contract for
the UPS. Contact an Eaton service representative in advance (usually a two-week notice
is required) to reserve a preferred startup date.
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