Eaton 93PM-50-1 - External AC Power Wiring Installation

Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03 23
Table 6. UPS External Power Cable Terminations for the Eaton 93PM-50-1
Terminal Function Terminal Function
Number and Size of
Pressure Termination
AWG or kcmil
Tightening
Torque Nm (lb
in)
Screw Size and
Type
AC Input to UPS Rectifier E1 Phase A 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
E2 Phase B 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
E3 Phase C 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
AC Input to Bypass E6 Phase A 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
E7 Phase B 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
E8 Phase C 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
(4-Wire version only)
E12 Neutral
(2) 6-300 kcmil 31.0 (275)
5/16” Hex
AC Output to Critical Load E9 Phase A 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
E10 Phase B 1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
E11
Phase C
1- #14-2/0 kcmil
12.4 (110)
1/4" Hex
(4-Wire version only)
E12 Neutral
(2) 6-300 kcmil 31.0 (275)
5/16” Hex
DC Input from Battery E4
Battery (+)
4 - #6-300 kcmil
31.0 (275)
1/4" Hex
E5
Battery (-)
4 - #6-300 kcmil
31.0 (275)
1/4" Hex
Customer Ground Ground Ground
6 - #14-1/0 kcmil
5.1 (45) Slotted
NOTE Customer ground, sized in accordance with NEC Table 250.122, can be run in any conduit listed in Table 7.
Conduit sizes were chosen from NEC Table 4, Electrical Metallic Tubing (EMT). See Table 7 for conduit
requirements.
Per NEC article 300, 3(B), all three-phase conductors must be run in the same conduit. A ground wire must be
run in the same conduit as the phase conductors.
When running parallel wires in multiple conduits a ground wire must be run in each conduit in accordance with
NEC Table 250.122.
Conduit is sized to accommodate neutral conductors the same size as the phase conductor. If an oversized
neutral conductor is to be installed, check the conduit size needed to accommodate the oversized neutral and
use that conduit in place of the conduit listed in Table 7.
Conduit is sized to accommodate one ground conductor per conduit, sized in accordance with
NEC Table 250.122.
Conduit sizes listed are for copper wiring only.
UPS Installation Plan and Unpacking