Emerson E2 Installation And Operation Manual page 37

FIGURE 1. DETAIL OF DEADFRONT TOP-LEFT SCREWS
The following steps describe installation of a left-side (odd breakers)
BCB into the 1a or 2a panelboard. It is essential that the positioning
and orientation in the chassis be precisely as described herein.
Improper location of the BCB will cause problems when trying to
connect the breaker pigtails to the BCB and improper orientation will
cause configuration difficulties.
Step 3. BCB Upper Mount
Figure 2 shows the proper location to install the topmost rail mount-
ing screw. (The hole is designated by the small arrow pointing to the
hole.) It may prove helpful to use a piece of tape or a marking pen to
indicate the hole into which to put the mounting screw.
FIGURE 2. LOCATION OF TOPMOST RAIL MOUNTING SCREW
Take care to follow the BCB orientation shown on the cover of this
document; use one of the supplied screws to loosely hold the BCB in
place.
Step 4. BCB Lower Mount
The BCB is fastened to the "C" channel by two screws (provided).
Let the BCB hang freely down the channel to locate the bottom-
mounting hole.
FIGURE 3. BOTTOM MOUNTING HOLE
EATON CORPORATION Cutler-Hammer Installing and Wiring Pow-R-Command Instruction Leaflet IL01412007E Effective: June 2006
2
DEPENDING ON THE PANELBOARD MANUFACTURE DATE, THERE MAY NOT BE
A HOLE FOR THE BOTTOM MOUNTING SCREW. IF THE HOLE IS PRESENT, THEN IT
WILL BE IN THE VICINITY OF THE SMALL ARROW SHOWN IN FIGURE 3. IF THE
HOLE IS NOT PRESENT, THEN IT WILL BE NECESSARY TO USE THE BCB AS A
GUIDE TO LOCATE THE HOLE. THIS CAN BE DONE BY LOOSELY SCREWING THE
BCB INTO THE TOP HOLE AND THEN USE THE RAIL ASSEMBLY ITSELF TO
LOCATE THE HOLE. IT MAY BE EASIER TO APPLY MASKING TAPE TO THE CHAS-
SIS TO MAKE YOUR MARK MORE VISIBLE. ONCE THE LOCATION IS DETER-
MINED, REMOVE THE BCB FROM THE PANEL AND DRILL THE HOLE USING A #29
DRILL BIT.
Step 5. Finishing Up
To complete the mechanical fastening of the BCB to the Pow-R-Line
panelboard, make sure all breaker pigtails are clear from any pinching
or jamming. Tighten the top and bottom mounting screws. Finally,
verify that any branch circuit wiring is clear of the newly installed
component.
Step 6. Plug On the Breakers
The last step is to connect each breaker pigtail to the appropriate BCB
output. This is done here as a means of verifying proper placement of
the BCB in the panel. If any breaker pigtails do not reach the matching
BCB circuit position, then it will be necessary to relocate the BCB up
or down to accommodate all controllable breakers. The first eight,
odd, breakers can be seen plugged on to the BCB in Figure 4 .
FIGURE 4. BREAKERS PLUGGED INTO THE BCB
To install the right-side BCB, simply follow Steps 1 – 6 but using the
figures as reference to locate the holes in the right side "C" channel.
THE VIEW IN FIGURE 4 SHOWS ALL BREAKERS PLUGGED ONTO THE BCB. IF
THERE ARE SPACES LEFT BY BLANK POSITIONS OR UNCONTROLLED BREAKERS,
PLACE ONE OF THE INCLUDED DUMMY-PLUGS OVER THE UNUSED BREAKER
TERMINATION POSITIONS.
Step 7. Replace the Deadfront
Reverse the procedure described in Step 2 above to replace the
deadfront cover over the breakers.
IMPORTANT
DO NOT REPLACE THE TRIM AS ADDITIONAL CONNECTIONS TO THE BCB ARE
REQUIRED AS DESCRIBED IN THE WIRING SECTION OF THIS DOCUMENT.
NOTICE
NOTICE