Thomas & Betts 9395 - Manual (Page 28)

UPS 225 - 275 kVA
User’s and Installation Guide
1027212
Revision B
2
3.4.2 Battery wiring
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 to connections:
1. If using a Powerware battery cabinet, proceed to Step 2; otherwise, proceed to Step 5.
2. Route and connect the battery cables between the UPS and battery cabinets in accordance
with the instructions in the Powerware 9395 Integrated Battery Cabinet (Model IBC-L)
installation manual. See Figure 3-3 through Figure 3-5 for wiring access information and
terminal locations.
3. Connect the positive, negative, and ground DC power wiring from the battery cabinet to the
UPS cabinet battery and ground terminals. See paragraph 2.2.2 on page 14 for wiring and
termination requirements.
4. Proceed to Step 7.
5. Route and connect the battery cables between the UPS and the battery system. See Figure
3-3 through Figure 3-5 for wiring access information and terminal locations.
6. Connect the positive, negative, and ground DC power wiring from the battery system to the
UPS cabinet battery and ground terminals. See paragraph 2.2.2 on page 14 for wiring and
termination requirements.
7. 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.
8. If wiring interface connections, proceed to paragraph 3.5; otherwise, proceed to Step 9.
9. When all wiring is complete, reinstall the left front panel removed in paragraph 3.4.1 and
secure with the retained hardware.
3.5 Installing interface connections
WARNING
Hazardous voltages are present near the user interface terminal area if the UPS is not
totally disconnected.
3.5.1 TB1, TB2, and TB3 connections (other than TB1 battery interface
connections)
NOTE
Interface wiring must be installed from the top of the UPS cabinet.