Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03
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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
.
Conduit sizes were chosen from NEC Table 4, Electrical Metallic Tubing (EMT). See
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
.
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.
Summary of Contents for 93PM-50-1
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