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11.
Per NEC article 300-20(a), all three-phase conductors must be run in the same conduit.
Neutral and ground must be run in the same conduit as the phase conductors.
12.
Conduit is sized to accommodate one neutral conductor the same size as the phase
conductor and one #8 AWG ground conductor. If two neutral conductors or an oversized
neutral conductor are to be installed, check the size of the conduit needed to
accommodate the extra wire or size and use that conduit size in place of the conduit size
listed in Table J. All Powerware 9390 products can accommodate a double size neutral.
13.
Conduit sizes were chosen from NEC Table C1, type letters RHH, RHW, RHW-2, TW, THW,
THHW, THW-2.
Table J. Power Cable Conduit Requirements
UPS Model
Voltage
208/220
Powerware
AC
9390---120/100
and
9390---160/100
DC
480
Powerware
AC
9390---120/100
and
9390---160/100
DC
208/220
Powerware
AC
9390---120/120
and
9390---160/120
DC
480
Powerware
AC
9390---120/120
and
9390---160/120
DC
EATON Powerware
9390 UPS (100–160 kVA) Installation and Operation Manual S 164201554 Rev E powerware.com
®
Terminal
AC Input to UPS
(A, B, C, Gnd)
AC Input to Bypass
(A, B, C, Neut, Gnd)
Output
(A, B, C, Neut, Gnd)
Battery
(Positive), (Negative), Gnd
AC Input to UPS
(A, B, C, Gnd)
AC Input to Bypass
(A, B, C, Neut, Gnd)
Output
(A, B, C, Neut, Gnd)
Battery
(Positive), (Negative), Gnd
AC Input to UPS
(A, B, C, Gnd)
AC Input to Bypass
(A, B, C, Neut, Gnd)
Output
(A, B, C, Neut, Gnd)
Battery
(Positive), (Negative), Gnd
AC Input to UPS
(A, B, C, Gnd)
AC Input to Bypass
(A, B, C, Neut, Gnd)
Output
(A, B, C, Neut, Gnd)
Battery
(Positive), (Negative), Gnd
DESCRIPTION:
DRAWING NO:
REVISION:
Installation Information
Number of
Minimum Conduit
Wires in
Trade Size (inches)
Conduit
4
2-1/2
5
2-1/2
5
2-1/2
5
2
4
2-1/2
5
2-1/2
5
2-1/2
5
2
4
2-1/2
5
2-1/2
5
2-1/2
5
2
4
1-1/2
5
1-1/2
5
1-1/2
5
2
POWER WIRING INSTALLATION NOTES
164201554---5
DATE:
C
Number of
Conduits
2
2
2
1
1
1
1
1
2
2
2
1
2
2
2
1
SHEET:
6 of 15
081505
A-17
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