0100037-J0 Rev D
28
User Guide
Cordex HP 2.4kW / 3.0kW Modular Switched Mode Rectifier
6.6 AC wiring 23 inch shelf
6.6.1 AC feeder protection/sizing
To maximize system reliability it is recommended that, each power module be fed from a dedicated protection
feeder breaker located at the AC distribution panel. The feeder breaker can also act as the disconnect device for
the connected module. Refer to
for breaker and wire size recommendations.
6.6.2 AC input connections
CAUTION!
To minimize EMI disturbances, route the AC input wires in flexible or rigid conduit and located
as far away as possible from the DC power wires.
WARNING!
Use care when removing or replacing the covers for the AC input connections. Never assume
that an electrical connection or conductor is not energized.
1. Ensure that all modules are removed from the shelf.
2.
At the rear of the shelf, remove screw and flip the cover down (two places) to access the AC input terminal
blocks: each terminal pair corresponds to either two rectifiers or a single rectifier.
3.
The wire way is designed for two customer-supplied, 3/4" trade size conduit fittings for the AC supplies located
on each side of the shelf. Attach the conduit retainers to the wire way holes and route the AC cables through
them.
4. Secure the wires to the AC input and AC ground terminals (torque spec. 169.5Ncm or 15in. lbf) and AC
ground terminal (395.4Ncm or 35in. lbf). Refer to
and customer connection drawing #0300057-08
and #0300216-08 at the end of the manual.
5. Tighten the cable connector to the AC cable (conduit similar).
6. Replace rear covers once all connections have been completed.
Single feed for rectifier
slots #1 and #2
Bottom connector: single feed
for rectifier slots #3 and #4
Top connector:
single feed for
rectifier slot #5
Figure 12 —
AC input and ground for 23 inch shelf
AC ground
AC Ground
Cover
flipped
down
NOTE: Rectifier slot numbers 1 to 5 from the left front of the shelf (for reference only).
Summary of Contents for Cordex HP CXRF 48-2.4kW
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