18
IGBT D
IMMER
R
ACKS
Installation
& Operation
Capio Plus IGBT Dimmer Racks may be bused together using the optional busing kit. To bus racks, you will need to remove the pan-
els as described below before the racks are bolted together or secured to a wall.
To bus two or more racks together:
1. Determine which panels need to be removed. (Example: If you are busing two racks, the panel on the right side of the left-hand rack
and the panel on the left side of the right-hand rack need to be removed.)
2. Remove the eight screws as shown in
Figure 17
from each panel you are removing. Save these screws - you will need them in Step
8. Remove the panels and properly recycle the material.
3. Level the racks and bolt them together (see "Mounting Several Racks Together" on page 12).
4. Remove the phase lugs from the rack(s) that will not be fed from the main.
5. Loosely attach the phase A, B, and C bus bars as shown in
Figure 18
. Leave hardware loose until all bus bars are in place.
6. Loosely attach the Neutral bus bar as shown in
Figure 18
.
7. Tighten all bolts.
8. Insert the plastic rack divider (
Figure 17
) between the two racks. Attach it to the left-hand rack using the eight screws and screw
holes from Step 2.
: Do not operate bused racks without the plastic divider in place. Air leaks can inhibit rack ventilation, causing
dimmers to overheat and shut down.
Figure 17: Busing Kit Parts and Removing Busing Panel
Removable
busing panel
Screws
Plastic rack divider
Neutral bus bar
3/8" flat
washer
3/8" lock
washer
3/8-16
lock nut
Phase bus bar
3/8" - 16 X 1”
hex head bolt
Screws
!
Busing Racks
