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Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03
Table 7. Power Cable Conduit Recommendations for the Eaton 93PM-50-1
UPS
Model
UPS
Rating
Voltage
Terminal
Number
of Wires
in Conduit
Minimum
Conduit
Trade Size
(inches)
Number
of
Conduits
Eaton
93PM-
50-1
20 kW
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
4
1”
1
AC Input to UPS Bypass
(A, B, C, Neutral, Ground)
5 (4–wire UPS) or
4 (3–wire UPS)
1-1/4”
1
AC Output
(A, B, C, Neutral, Ground)
5 (4–wire UPS) or
4 (3–wire UPS)
1”
1
DC
Battery
(Positive, Negative, Ground)
3
1-1/2”
2
Eaton
93PM-
50-1
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 (4–wire UPS) or
4 (3–wire UPS)
1-1/4”
1
AC Output
(A, B, C, Neutral, Ground)
5 (4–wire UPS) or
4 (3–wire UPS)
1-1/4”
1
DC
Battery
(Positive, Negative, Ground)
3
1-1/2”
2
Eaton
93PM-
50-1
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 (4–wire UPS) or
4 (3–wire UPS)
1-1/4”
1
AC Output
(A, B, C, Neutral, Ground)
5 (4–wire UPS) or
4 (3–wire UPS)
1-1/4”
1
DC
Battery
(Positive, Negative, Ground)
3
1-1/2”
2
NOTE
Wires per conduit include neutral (if 4–Wire) and ground wire.
External overcurrent protection and disconnect are not provided by this product, but are required by codes. See
for wiring recommendations. If an output lockable disconnect is required, it is to be supplied by the
customer.
lists the recommended rating for input and bypass circuit breakers.
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