POWER WIRING INSTALLATION NOTES
011509D
164201604-5
NOTE: Customer ground can be run in any conduit listed in Table J.
4 of 15
DESCRIPTION:
DATE:
:TEEHS:ON GNIWARD
REVISION:
CAUTION
DELTA SOURCES (TN‐S) - The Eaton 9390 UPS system can be operated only from a delta supply source that is fully floating
and if the neutral‐forming transformer kit (PN 103005400) is installed in the UPS. The UPS cannot be operated from a
mid‐point or end‐point grounded delta supply source. With this type of supply source, there is no capability to provide an
output neutral. In no circumstances shall a neutral to ground bonding jumper be installed in the UPS.
8. The UPS cabinet is shipped with a debris shield covering the ventilation grill on top of the
unit. Do not remove the debris shield until installation is complete. However, remove the
shield before operating the UPS. Once the debris shield is removed, do not place objects
on the ventilation grill.
9. See Chapter 4, Chapter 5, and Chapter 6 for installation instructions.
10. Terminals are UL and CSA rated at 90°C. Refer to Table H and Table I for power cable
terminations, and Table J for conduit requirements. Figure 82 shows the locations of the
power cable terminals inside the UPS cabinet.
Table H. UPS Cabinet Power Cable Terminations for the Eaton 9390-120/100 and
9390-120/120 (380V/400V/415V/480V Input and 380V/400V/415V/480V Output)
Terminal Function Terminal Function
Size of Pressure
Termination
Tightening
Torque
Nm (lb in)
Type
Screw
AC Input to UPS Rectifier
and Bypass
(Single Input)
E1 Phase A 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
E2 Phase B 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
E3 Phase C 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
AC Input to UPS Rectifier
(Dual Input)
E1 Phase A 2 - #6-250 kcmil 42.4 (375) 5/16 in. Hex
E2 Phase B 2 - #6-250 kcmil 42.4 (375) 5/16 in. Hex
E3 Phase C 2 - #6-250 kcmil 42.4 (375) 5/16 in. Hex
AC Input To Bypass
(Dual Input)
E6 Phase A 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
E7 Phase B 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
E8 Phase C 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
Single‐Feed To Dual‐Feed
Remove Jumpers between
Rectifier Input Terminals
and Bypass Input
Terminals
Rectifier Phase A N/A 12.5 (110) M8 Hex Bolt
Bypass Phase A N/A 22.6 (200) M10 Hex Bolt
Rectifier Phase B N/A 12.5 (110) M8 Hex Bolt
Bypass Phase B N/A 22.6 (200) M10 Hex Bolt
Rectifier Phase C N/A 12.5 (110) M8 Hex Bolt
Bypass Phase C N/A 22.6 (200) M10 Hex Bolt
AC Output to
Critical Load
E9 Phase A 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
E10 Phase B 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
E11 Phase C 2 - #6-250 kcmil
42.4 (375)
5/16 in. Hex
DC Input from
Battery to UPS
E4 Positive 2 - #2-600 kcmil
56.5 (500)
1/2 in. Hex
E5 Negative 2 - #2-600 kcmil
56.5 (500)
1/2 in. Hex
Input and Output Neutral E12 Neutral 8 - #6-250 kcmil 42.4 (375) 5/16 in. Hex
Customer Ground Ground Ground 8 - #14-1/0 5.6 (50) Slotted
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