If you are installing a customer-supplied battery system, install the battery system according to the battery
and battery system manufacturer’s instructions and all the applicable national codes and regulations. Only
qualified personnel may install the battery system. Battery cables must be protected against current and
thermal overload, that is, the battery system must include proper fuses or breaker with protection function.
Ground the frame of the external battery cabinet to the UPS.
The default battery settings of the UPS are for 12 V VRLA batteries. If you need to use any other type of
batteries, contact your Eaton representative.
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The external battery breakers can be tripped (switched off) by energizing its shunt trip coil. The shunt trip
coils are energized (controlled) through connector X8. The status signal of the external battery breaker is
also connected to connector X8. Status contacts of the Eaton battery breakers are open if the breaker
itself is open.
NOTE: The default voltage of the battery breaker shunt trip coil is 24 VDC.
Figure 23. Battery trip wiring for the 93T UPS
1. Pin 1, shunt trip coil +
2. Pin 2, shunt trip coil -
3. Pin 3, AUX contact
4. Pin 4, AUX contact return
A = External battery breaker
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Before connecting the external battery, read the caution and warning labels attached to the battery cabinet.
WARNING
The underpan or the frame of the battery cabinet might be energized. Make
sure that the underpan and the frame of the external battery cabinet is grounded
to the UPS.
Before you install the external battery cabinet, read and understand the following guidelines.
• Before installing the battery, make sure that the number of batteries matches the charging voltage
settings.
EATON 93T USER’S AND INSTALLATION GUIDE 614-40270
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December 2023 www.eaton.eu 4499
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