UPS Installation Plan and Unpacking
Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4
www.eaton.com/powerquality
3-17
Conduit sizes were chosen from NEC Table 4, Electrical Metallic Tubing (EMT). See Table 3-6 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 3-6.
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.
Table 3-6. Power Cable Conduit Requirements for the Eaton 93PM-50-1 and Eaton 93PM-50-2 (N+1)
UPS Model
UPS Rating
Voltage
Terminal
Number of Wires
in Conduit
Minimum Conduit
Trade Size
(inches)
Number of
Conduits
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
20 kW
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4
3/4”
1
AC Input to UPS Bypass
(A, B, C, Neutral, Ground)
5
1”
1
AC Output
(A, B, C, Neutral, Ground)
5
1”
1
DC
Battery
(Positive, Negative, Ground)
5
2-1/2”
1
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1))
30 kW
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4
1-1/4”
1
AC Input to UPS Bypass
(A, B, C, Neutral, Ground
5
1-1/4”
1
AC Output
(A, B, C, Neutral, Ground)
5
1-1/4”
1
DC
Battery
(Positive, Negative, Ground)
5
2-1/2”
1
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
40 kW
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4
1-1/4”
1
AC Input to UPS Bypass
(A, B, C, Neutral, Ground
5
1-1/2”
1
AC Output
(A, B, C, Neutral, Ground)
5
1-1/4”
1
DC
Battery
(Positive, Negative, Ground)
5
2-1/2”
1
NOTE
Wires per conduit include neutral and ground wire.
Summary of Contents for 93PM UPS
Page 1: ...Eaton 93PM UPS 20 50 kW 480V Four Wire 50 kW Frame Installation and Operation Manual...
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Page 3: ...Eaton 93PM UPS 20 50 kW 480V Four Wire 50 kW Frame Installation and Operation Manual...
Page 25: ...Section 1 Installation...
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Page 87: ...Section 2 Operation...
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Page 146: ...P 164000540 4 P 164000540 4...
