Table 23. Recommended Dc Input Battery Disconnect Circuit Breaker Ratings - Eaton 93PM Installation And Operation Manual

UPS Installation Plan and Unpacking
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.
If required, external DC input overcurrent protection and disconnect switch is to be supplied by the customer.
Table 23 lists the recommended ratings for circuit breakers satisfying the criteria for each battery voltage.
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 23. Recommended DC Input Battery Disconnect Circuit Breaker Ratings

400V 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-100-2
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-100-3
Eaton 93PM-100-4 (N+1)
Eaton 93PM-100-3
Eaton 93PM-100-4 (N+1)
3 3 . . 2 2 . . 4 4 U U P P S S S S y y s s t t e e m m I I n n t t e e r r f f a a c c e e W W i i r r i i n n g g P P r r e e p p a a r r a a t t i i o o n n
NOTE
Control wiring for features and options should be connected at the customer interface terminal blocks located
inside the UPS.
Do not directly connect relay contacts to the mains related circuits. Reinforced insulation to the mains is
required.
Read and understand the following notes while planning and performing the installation:
48 Eaton 93PM UPS (400V/480V Four-Wire – 100 kW Frame) Installation and Operation Manual 164000566—Rev 04
480V 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)
Refer to the Eaton 93PM Sidecar Integrated Accessory Cabinet-Bypass Installation and
Operation (50 kW and 100 kW SIAC-B) Manual, listed in paragraph
1.8 For More Information, for SIAC-B interface wiring preparation and
recommendations.
UPS Rating
20 kW
30 kW
40 kW
50 kW
60 kW
70 kW
80 kW
90 kW
100 kW
WARNING
Output Rating
480V
60A
90A
125A
150A
175A
200A
225A
250A
300A