7
Breakers with a Side Bracket
1. Drill a 34” diameter hole into the flux shifter
assembly mounting base to provide the neces-
sary clearance for the bracket. The location of the
new hole is shown in Figure 6.
2. Remove the side bracket from the frame and drill
the holes according to the pattern in Figure 4. A
full-size template is provided in the Appendix.
After the holes are drilled, return the side bracket
to its original location.
3. Mount the new flux shifter to the inside of the
side frame with the three screws, lock washers,
flat washers, and nuts supplied, as shown in
Figure 5. The upper two screws are inserted from
the outside of the frame, while the lower screw
must be inserted from the inside.
AKU-50 Breakers Only
For easier installation of the new flux shifter
assembly on AKU-50 breakers, the open-fuse lockout
(OFLO) may be removed from the breaker.
1. Remove the three bolts attaching the OFLO to the
base of the breaker.
2. The OFLO terminal block must be relocated on
the upper left side of the breaker. Some parts and
tool, not provided with the kit, are necessary for
this task:
•Six strips of 14 AWG wire
•Wire splice
•12 butt splices
•Wire labels
•Drill and size F bit
•5/16-18 tap
•Flathead screw driver
•Two 5/16-18 bolts and lock washers
3. Drill and tap two holes for the 5/16-18 bolts. Fig-
ure 7 shows the hole locations.
4. Remove the three bolts securing the OFLO to the
breaker and lift off the OFLO device.
5. Remove the wires that connect the OFLO device
to the terminal block.
6. Cut the wires that connect to the coils where they
join and label the wires. Attach butt splices to all
twelve open ends.
7. Connect the strands of wire to the OFLO. Mount
the terminal block in its new location. DO NOT
complete the wire connections until the flux
shifter is installed.
8. Install the new flux shifter assembly as described
above and shown in Figure 5.
9. Connect the cables attached to the terminal block
and tie them together.
Figure 6. Location of new hole in the flux shifter base.
Figure 7. Locations of new holes for mounting the OFLO terminal
block.