Figure 12: Power cable terminals in the 91PS 30 kW frame with a common
battery
X1
Rectifier input
X4/-
External battery -
X2
Bypass input
T-
B20
External battery trip and aux signal
(N.O.)
X3
UPS output
PE
Protective earth
X4/+
External b
Figure 13: Power cable terminals in the 91PS 30 kW frame with a separate
battery (option)
© Eaton Corporation plc 2020. All rights reserved.
Revision: 006
Document ID: P-164000493
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Eaton 91PS/93PS UPS 8–40 kW
User’s and Installation Guide