Alpha Cordex HP CXRF 48-2.4kW, Manual

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0100037-J0 Rev D 26
User Guide Cordex HP 2.4kW / 3.0kW Modular Switched Mode Rectifier
6.5.1 Busbar connection
Multiple shelves can be connected directly to customers’ vertical busbar.
1. Remove the bolts and washers at both positive and negative output bars. Bolts are 3/8-16 × 1", and can
accommodate up to 1/4" thick busbar.
2. Use fasteners removed from the previous step to secure the vertical busbars to shelf positive and negative
output bars. Install all fasteners finger tight , then apply 27.12Nm (20 ft-lbf) torque to each bolt.
6.5.2 Cable connection
When attaching cables directly to the output bars, use appropriately sized cables terminated with crimp lugs with
3/8" holes on 1" centers.
1. Remove the bolts and washers at both positive and negative output bars. Bolts are 3/8-16 × 1".
2. Use fasteners removed from the previous step to secure the positive and negative cables to the shelf output
bars. Install all fasteners finger tight .
3. Use a “Tongue and Groove” or similar pliers to hold and stabilize the output bar, torque each bolt to 27.12Nm
(20 ft-lbf).
CUSTOMERS' VERTICAL
BUS BAR, NEGATIVE (-)
CUSTOMERS' VERTICAL
BUS BAR, POSITIVE (+)
INSTALL ALL FASTENERS "FINGER TIGHT",
THEN APPLY 20 ft-lbf TORQUE TO EACH BOLT
Figure 9 — Connecting output bars to customer's vertical busbars
Figure 10 — Connecting output bars directly to cables
TONGUE AND GROOVE
PLIER TO STABILIZE
THE BAR WHEN
TORQING WIRE LUG
TORQUE TO 20 ft-lbf
NOTE
In a power system, up to five rectifier shelves may be stacked before a gap must be left for
adequate cooling of the rectifiers and shelves.