Table 3-7. Recommended Input And Bypass Circuit Breaker Ratings - Eaton 93PM UPS Installation And Operation Manual

UPS Installation Plan and Unpacking
Table 3-6. Power Cable Conduit Requirements for the Eaton 93PM-50-1 and Eaton 93PM-50-2 (N+1)(Continued)
UPS Model UPS Rating
Eaton 93PM-50-1
50 kW
Eaton 93PM-50-2 (N+1)
NOTE Wires per conduit include neutral and ground wire.
External overcurrent protection and disconnect are not provided by this product, but are required by codes. See
Table 3-4 for wiring requirements. If an output lockable disconnect is required, it is to be supplied by the
customer.
Table 3-7 lists the recommended rating for input and bypass circuit breakers.

Table 3-7. Recommended Input and Bypass Circuit Breaker Ratings

To reduce the risk of fire, connect only to a circuit provided with maximum input
circuit breaker current ratings from Table 3-7 in accordance with the NEC, ANSI/NFPA 70.
3-18 Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4
Voltage
480 Vac
DC
(Positive, Negative, Ground)
UPS Model
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
Terminal
AC Input to UPS Rectifier
(A, B, C, Ground)
AC Input to UPS Bypass
(A, B, C, Neutral, Ground
AC Output
(A, B, C, Neutral, Ground)
Battery
UPS Rating Load Rating
80% Rated
20 kW
100% Rated
80% Rated
30 kW
100% Rated
80% Rated
40 kW
100% Rated
80% Rated
50 kW
100% Rated
CAUTION
Minimum Conduit
Number of Wires Trade Size
in Conduit (inches)
4 1-1/2"
5 2"
5 1-1/2"
5 2-1/2"
Input Rating
www.eaton.com/powerquality
Number of
Conduits
1
1
1
1
480V
45A
35A
60A
50A
80A
60A
100A
80A