C External battery breaker 7 Aux contact return
1 BAT_shut_DET 8 Aux contact
2 GND 9 Shunt trip coil -
3 Aux contact return 10 Shunt trip coil +
4 Aux contact
5.4 Installing UPS external battery cabinet and battery
power cabling
There is a vast offering of different Eaton external battery cabinets available for
the 93PM-G2 UPSs. Please refer to the three-phase accessories offering for
further details. See a separate manual for instructions on how to install Eaton
external battery cabinets.
NOTE: Do not connect battery strings with different battery quantity and voltage
in parallel.
Cable entry to the UPS is always on the top or the bottom of the cabinet.
NOTE: If batteries are wired outside the cabinets, follow the installation
instructions given in Section 4.4.3 UPS system power wiring preparations.
5.5 Install a remote EPO switch
You can use a remote EPO switch in case of an emergency to shut down the
UPS and remove power to the critical load from a location away from where the
UPS is installed.
EPO is connected to the UPS's top front panel, on connector EPO. Figure
19: Connections of the EPO switch shows the NO and NC connections of the
EPO switch.
EPO connector (front view):
• A = Normally open
• B = Normally closed
© Eaton Corporation plc 2020. All rights reserved. Revision: 001 Document ID: P-164000956 63 (141)
Eaton 93PM G2 UPS 50 – 360 kVA User’s and Installation Guide
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