Eaton 93PM-50-1 - Page 49

Eaton 93PM Emergency Lighting UPS (50 kW, 480V Three and Four-Wire UL 924) Installation and Operation Manual P-164000569—Rev 03 39
Figure 19. Power Terminal Detail
AC Input to
UPS Bypass
AC Input to
UPS Rectifier
AC Output to
Critical Load
DC Input from Battery + (E4)
DC Input from Battery - (E5)
Phase A (E9)
Phase B (E10)
Phase C (E11)
Neutral (E12)
(if 4-Wire)
Phase A (E6)
Phase B (E7)
Phase C (E8)
Neutral (E12)
(if 4-Wire)
Phase A (E1)
Phase B (E2)
Phase C (E3)
Cabinet
Ground Post
Cabinet
Ground Post
Ground Terminals
44..66 BBaatttteerryy PPoowweerr WWiirriinngg
CAUTION
When sizing the battery system, do not exceed the internal battery charger capabilities. See
Chapter 10 Product Specifications for maximum battery charger currents.
To install wiring:
1. Route and connect the battery cables between the UPS and battery cabinet or battery disconnect
according to the instructions in the Eaton 93PM Integrated Battery Cabinet Installation Manual-Large and
Large High Rate, the Eaton 93PM Universal Integrated Battery Cabinet Installation Manual-Large and Large
High Rate, the Eaton 93PM Integrated Battery Cabinet Installation Manual-Small, or the Eaton 93PM
Integrated Battery Cabinet Installation Manual-Small Welded , listed in paragraph 1.8 For More Information.
See Figure 15, Figure 16, and Figure 17 for wiring access information, and Figure 18 for terminal locations.
2. Connect the positive, negative, and ground DC power wiring from the battery cabinet or disconnect to the
UPS cabinet battery and ground terminals. See paragraph 3.2.2 UPS System Power Wiring Preparation for
wiring and termination requirements.
For a detailed view of the UPS terminal block, see Figure 19.
3. After wiring the UPS system to the facility power and critical load, be sure to ground the system according
to local and/or national electrical wiring codes.
4. If wiring interface connections, proceed to paragraph 4.7 Installing Interface Connections; otherwise,
proceed to Step 5.
5. Reinstall all safety shield panels previously removed and secure with the retained hardware.
6. If removed, reinstall the sidecar front panel and secure with the retained hardware.
7. Close the UPS outside door and secure the latch.
UPS System Installation