Eaton 93PS - Page 53

Figure 15: Power cable terminals in the 93PS 40 kW frame with a separate
battery (option)
X1 Rectifier input X4/2/- External battery - for UPM1
X2 Bypass input X4/4/- External battery - for UPM2
X3 UPS output TB20 External battery trip and aux signal
(N.O.) for UPM1
X4/1/
+
External battery + for UPM1 TB21 External battery trip and aux signal
(N.O.) for UPM2
X4/3/
+
External battery + for UPM2 PE Protective earth
NOTE: External overcurrent protection is not provided by this product, but is
required by codes. Refer to Table 14: Minimum recommended multi-core cable
and fuse sizes for rectifier and bypass input and UPS output cables (3–phase
input, 3–phase output models) for wiring requirements. If a lockable output
disconnect is required, it must be supplied by the user.
Table 21: UPS power cable terminal torques
UPS rating
Function
Tightening torque [Nm]
93PS 8-20 kW X1, X2, X3: L1, L2, L3, N 1.6
X4: battery +/- 3.0
© Eaton Corporation plc 2020. All rights reserved. Revision: 006 Document ID: P-164000493 53 (126)
Eaton 91PS/93PS UPS 8–40 kW User’s and Installation Guide