5 wiring and connections, 1 safety precautions, 2 tools required – Alpha Technologies Cordex 48-1.2kW User Manual
Page 23: 3 ac feeder protection/sizing, Iring and, Onnections, Safety precautions, Tools required, Ac feeder protection/sizing, 5wiring and connections
030-834-J0 Rev A
Page
17 of 34
5
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.
5.1
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 previous (Installation) chapter for additional safety precautions.
5.2
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")
•
Philips 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 rachet set (Imperial measure)
•
Anti-static wrist strap
•
Computer (laptop) with Microsoft Internet Explorer 7 or greater
•
Crossover cable RJ-45 (for access using the Ethernet port)
5.3
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).
•
030-834-20: 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 modules 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 modules 3.
It is recommended, for each feed, to use a dedicated protection feeder breaker located at the AC
distribution panel. The feeder breaker can also act as the disconnect device for the connected modules.
AC Input (Vac)
Number of Rectifiers
on AC Feed
Circuit Breaker
Exact Value to Use (A)
120
2
15
208/220/240
2
20
Table A–Recommended AC supply configuration