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0100037-J0 Rev D
User Guide
Cordex HP 2.4kW / 3.0kW Modular Switched Mode Rectifier
6.7 AC wiring 19 inch shelf
For the 19 inch shelf, AC wiring is fed separately to each of the four rectifiers.
6.7.1 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.
6.7.2 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 rectifier modules are removed from the shelf.
2.
At the rear of the shelf, remove the screw and flip the cover down (two places) to access the AC input terminal
blocks. Each terminal pair corresponds to an individual rectifier as marked.
3.
The wire way is designed for two customer-supplied, 3/4" trade size conduit fittings 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 connections (torque spec. 169.5Ncm or 15in. lbf) and AC ground terminal
(395.4Ncm or 35in. lbf) as shown in drawing #0300040-08 and #0300228-08 at the end of this manual.
5. Tighten the cable connector to the AC cable (conduit similar).
6. Replace rear covers once all connections have been completed.
Summary of Contents for Cordex HP CXRF 48-2.4kW
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