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UPS INSTALLATION PLAN AND UNPACKING
Power Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual 164201701 Rev 3
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3-14
Conduit sizes were chosen from NEC Table 4, Electrical Metallic Tubing (EMT). See
Table 3‐12 for conduit requirements.
Per NEC article 300, 3(B)(1), 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.
Conduit is sized to accommodate one neutral conductor the same size as the phase
conductor and one ground conductor sized in accordance with NEC Table 250.122.
Conduit sizes listed are for copper wiring only.
Table 3‐12. Power Cable Conduit Requirements
UPS Model Voltage Terminal
Number of Wires
in Conduit
Minimum Conduit
Trade Size
Number of
Conduits
9395-550/450
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4 2‐1/2 3
AC Input to UPS Rectifier (Separate Feed)
(A, B, C, Ground)
4 2
2
(Each UPM)
AC Input to Bypass and Output (Four Wire)
(A, B, C, Ground)
4 2‐1/2 3
AC Input to Bypass and Output (Five Wire)
(A, B, C, Neutral, Ground)
5 2‐1/2 3
DC
Battery
(Positive, Negative, Ground)
See Note 1
Power Xpert 9395-550/500
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4 2‐1/2 4
AC Input to UPS Rectifier (Separate Feed)
(A, B, C, Ground)
4 2
2
(Each UPM)
AC Input to Bypass and Output (Four Wire)
(A, B, C, Ground)
4 2‐1/2 3
AC Input to Bypass and Output (Five Wire)
(A, B, C, Neutral, Ground)
5 3 3
DC
Battery
(Positive, Negative, Ground)
See Note 1
Power Xpert 9395-550/550
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4 2‐1/2 4
AC Input to UPS Rectifier (Separate Feed)
(A, B, C, Ground)
4 2
2
(Each UPM)
AC Input to Bypass and Output (Four Wire)
(A, B, C, Ground)
4 2‐1/2 3
AC Input to Bypass and Output (Five Wire)
(A, B, C, Neutral, Ground)
5 3 4
DC
Battery
(Positive, Negative, Ground)
See Note 1
NOTE 1 Select conduit taking into consideration the DC input wire sizes listed in Table 3‐4 on page 3-9 or Table 3‐5 on page 3-10, the DC terminations
listed in Table 3‐8 on page 3-12, type of battery installation, and requirements from NEC Table 4, Electrical Metallic Tubing (EMT).
NOTE 2 Bypass conduit data is not applicable to IOM configurations.