010-619-J0 Rev B Page 25
6 Wiring and Connections
This chapter provides cabling details and notes on cable sizing for DC applications with respect to the
shelf.
NOTE: Refer to the drawings located at the rear of the manual.
6.1 Safety Precautions
WARNING: Hazardous AC voltages may be present. Ensure power at the AC service panel is off before
attempting work on the AC connections. Use a voltmeter to verify the absence of voltage. Clearly mark
the correct polarity of the battery leads before commencing work on DC connections.
Refer to the chapter on Installation for additional safety precautions.
6.2 Tools Required
Various tools are essential for product installation. Insulated tools are recommended. Use this list as a
guide:
• Slot head screwdrivers (blade sizes: 1/4", 1/8", 1/16")
• Phillips head screwdriver, #2 (tip size 3/16")
• Digital voltmeter equipped with test leads
• Adjustable 24/48Vdc load (optional)
• Cutters and wire strippers
• Crimping tool (optional for large gauge wire)
• Socket and ratchet set (Imperial measure)
• Anti-static wrist strap
• Computer (laptop) with web browser
• Standard network cable (for access using the Ethernet port)
6.3 AC Feeder Protection/Sizing
To maximize system reliability, the AC feed divides the rectifiers into groups to be supplied by separate
feeds. See customer connections drawing (modules are numbered left to right).
• 0300165: TBA-1 feeds modules 1 and 2. TBA-2 feeds modules 3 and 4.
• 030-835-20: TBA-1 feeds modules 1 and 2. TBA-2 feeds modules 3 and 4.
• 030-845-20: TBA-1 feeds module 1. TBA-2 feeds modules 2 and 3. TBA-3 feeds modules 4 and
5.
• 030-851-20: TBA-1 feeds modules 1 and 2. TBA-2 feeds module 3.
It is recommended, for each feed, to use a dedicated protection feeder breaker located at the AC distri-
bution panel. The feeder breaker can also act as the disconnect device for the connected modules.
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