Eaton 93PM UPS - Table 3-7. Recommended Input and Bypass Circuit Breaker Ratings

UPS Installation Plan and Unpacking
3-18 Eaton 93PM UPS (20–50 kW, 480V Four Wire – 50 kW Frame) Installation and Operation Manual P-164000540—Rev 4 www.eaton.com/powerquality
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.
CAUTION
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.
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
50 kW
480 Vac
AC Input to UPS Rectifier
(A, B, C, Ground)
41-1/2”1
AC Input to UPS Bypass
(A, B, C, Neutral, Ground
52”1
AC Output
(A, B, C, Neutral, Ground)
51-1/2”1
DC
Battery
(Positive, Negative, Ground)
52-1/2”1
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 Voltage Terminal
Number of Wires
in Conduit
Minimum Conduit
Trade Size
(inches)
Number of
Conduits
NOTE Wires per conduit include neutral and ground wire.
Table 3-7. Recommended Input and Bypass Circuit Breaker Ratings
Input Rating
UPS Model UPS Rating Load Rating 480V
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
20 kW
80% Rated 45A
100% Rated 35A
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
30 kW
80% Rated 60A
100% Rated 50A
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
40 kW
80% Rated 80A
100% Rated 60A
Eaton 93PM-50-1
Eaton 93PM-50-2 (N+1)
50 kW
80% Rated 100A
100% Rated 80A