Table 3-11. Recommended Dc Input Battery Disconnect Circuit Breaker Ratings (216 Cell) - Eaton 93PM Installation And Operation Manual

UPS Installation Plan and Unpacking
There is no manual DC disconnect device within the UPS.
Battery voltage is computed at 2 volts per cell as defined by Article 480 of the NEC. Rated battery current is
computed based on 2 volts per cell.
External DC input overcurrent protection and disconnect switch is to be supplied by the customer. Table 3-11
and Table 3-12 list the maximum ratings for continuous-duty rated circuit breakers satisfying the criteria for
both. Recommended disconnect size is based on a maximum full load discharge time less than 3 hours. For
longer discharge times a larger disconnect may be required.

Table 3-11. Recommended DC Input Battery Disconnect Circuit Breaker Ratings (216 Cell)

3-24 Eaton 93PM UPS (20–100 kW, 480V – 100 kW Frame) Installation and Operation Manual P-164000227—Rev 6
UPS Model
Eaton 93PM-100-1
Eaton 93PM-100-2 (N+1)
Eaton 93PM-100-1
Eaton 93PM-100-2 (N+1)
Eaton 93PM-100-1
Eaton 93PM-100-2 (N+1)
Eaton 93PM-100-1
Eaton 93PM-100-2 (N+1)
Eaton 93PM-100-2
Eaton 93PM-100-3 (N+1)
Eaton 93PM-100-2
Eaton 93PM-100-3 (N+1)
Eaton 93PM-100-2
Eaton 93PM-100-3 (N+1)
Eaton 93PM-100-2
Eaton 93PM-100-3 (N+1)
Eaton 93PM-100-2
Eaton 93PM-100-3 (N+1)
UPS Rating
20 kW 100% Rated
30 kW 100% Rated
40 kW 100% Rated
50 kW 100% Rated
60 kW 100% Rated
70 kW
100% Rated
80 kW 100% Rated
90 kW
100% Rated
100 kW 100% Rated
Output Rating
480V
60A
90A
125A
150A
200A
225A
250A
300A
300A
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