Eaton 93PM-50-1 - Page 32

22 Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03
Table 5. Input/Output Ratings and External Wiring Recommendations for the Eaton 93PM-50-1 (Continued)
DC Input from External Battery (Standalone
Eaton 93PM IBC)
(1) Positive, (1) Negative, (1) Ground
C
Voltage
Total Amps
480
45
480
67
480
89
Minimum Conductor Size (Phase Positive and
Negative)
Number per Pole
AWG or kcmil
(each)
3/0
(2)
3/0
(2)
3/0
(2)
Minimum Conductor Size (Ground)
Number
–
AWG or kcmil
(each)
4
(1)
4
(1)
4
(1)
AC Output to Critical Load
Full Load Current
(3) Phases, (1) Neutral (if 4-Wire), (1) Ground
D
Amps 24 36 48
Minimum Conductor Size (Phase A, B, and C, and
Neutral [if 4–Wire])
Number per Phase
AWG or kcmil
(each)
8
(1)
6
(1)
4
(1)
Minimum Conductor Size (Ground)
Number
–
AWG or kcmil
(each)
10
(1)
10
(1)
8
(1)
NOTE Callout letters A, B, C and D map to the Oneline Schematics detailed in Chapter 6 UPS Oneline Schematics.
NOTE Line-up-and-match battery wiring with a 105°C rating is factory supplied with the Eaton 93PM Integrated Battery Cabinet
(IBC).
NOTE The neutral conductor is sized the same as the phase conductor for balanced and resistive loads. Non-linear loads, up to
the maximum of 1.5x the load current, require a larger neutral conductor and should be sized in accordance with NFPA
NEC 70 Article 310.15(B)(5).
The power wiring terminals are pressure terminations, UL and CSA rated. See Table 6 for external power cable
terminations.
Figure 18 and Figure 19 show the location of the UPS power cable terminals.
UPS Installation Plan and Unpacking