GE Industrial Solutions ProTrip Conversion Kits AK-1-15 and AK-1-25 - Manual (Page 6)

SECTION 4. INSTALLING THE
CONVERSION KIT
Installing the Current Sensors (CTs)
1. Place the bottom copper bus in the breaker frame
and insert the 1 / 4 -20 x 7 / 8 " screw with a flat and
lock washer, as shown in Figure 5.
2. Insert the 3 / 8 -20 x 1 1 / 4 " bolt with a flat and lock
washer through the electrical contact hole in the
top of the bus, as shown in Figure 5.
3. Remove the 1 / 4 -20 Philips-head screw from the
back of the breaker above the load terminal that
aligns with the hole in the copper bus. On AK-1-
15 breakers, it is the right screw; on AK-1-25
breakers, it is the left screw. Replace the screw
with the 1 / 4 -20 x 1 5 / 8 " screw provided.
4. Use the 1 / 4 -20 nut, flat washer, and lock washer
on the screw inserted in step 3 to fasten the bus,
as shown in Figure 5.
5. Place the CT, insulating barrier, and top copper
bus over the copper CT post. Secure the bus with
the 5 / 16 -18 x 1" bolt, flat washer, and lock washer
provided, as shown in Figure 6.
Figure 5. Bottom bus installation.
Figure 6. CT assembly.
7