STEP 7 Continued
—
Figure 7a. Installation of breaker
—
Figure 7b. Installation of breaker
8
9
6x 6x
6
13
7
4x
4x
2x
1x
1x 15
Remove knock out features before
assembly to breaker
Remove knock out features before
assembly to breaker
14
!
!
3
STEP 7
Install the pre-assembled breaker. Attach the breaker assembly to
mounting brackets [4] with mounting stud [6], torque the mount
-
ing stud [6] to 18 lb-in. Refer figure 7a. Attach to link assembly with
Hex terminal screw [8] and conical washer [9], torque the screw [8]
to specification in document 1SDH002011A1002. Refer figure 7b.
STEP 9
Note: Use M3 x 8 if the required screw is not available.
Install the phase barrier [13] on the breaker with Pan head, Phillips
screw [7], torque the screw [7] to 9 lb-in. Refer figure 9.
STEP 8
Remove the plastic wall (knock out) in terminal cover and install the
terminal cover on load side (slide down in as shown in figure 8).
—
Figure 9. Installation of phase barrier
—
Figure 8. Installation of terminal cover
STEP 11
Prepare the filler plates [14, 15] if single breaker installation is used.
Attach the blankout out plate [17] to the filler plate with thread
forming screw [5], torque the screw [5] to 30 lb-in. Refer figure 11.
—
Figure 11. Preparation of filler plate
—
Figure 10. Tighten the bolted strap connection
STEP 10
Tighten all the three bolted strap connections (carriage bolt as-
sembly) at the vertical bus to 65 lb-in. It may be necessary to re-
move adjacent circuit breaker modules to allow access to the
bolted connections at the vertical bus.
Item 5 - screw to be assembled with screw
head from rear/behind the filler plate and
thread end projecting outside as shown
17
5
