GE Industrial Solutions Power Break Stationary Conversion Kit - Manual (Page 2)

2
Mounting Hole Relocation
Since the mounting holes for the Power Break II breaker
do not align with the holes in panel, new mounting holes
need to be drilled on the panel breaker mounting space.
Figure 3 shows the new locations for the 1600A-2000A
breakers. A 1:1 scale template is provided with the kit to
guide in the drilling of the holes, which should be made for
a ¼-20 tap. It is important to note that new non
magnetic mounting boards or channels may need to be
installed in the existing housing to accommodate for the
relocation of the mounting holes.
Figure 3: 1600-2000A Mounting Hole Relocation
Line /Load Strap Extensions
The Power Break I 1600A and 2000A breakers are longer
than their Power Break II counterparts. To compensate
for the difference in length, 6 line strap extensions are
provided with the conversion kit. Please note that the
length for the straps is different, 1600A is 4” long and
2000A is 5.25”. Bolt the extensions using 1/2” screws to the
line and load straps to a torque of 300 in-lbs. The
extensions should be bolted as shown on Figure 4.
Figure 4: Installed 1600A (left) and 2000A (right) Strap Extenders
Line Shield
Due to the addition of the strap extensions, a shield is
required in the line side of the breaker. To install, place line
shield so that the top of mounting bracket aligns with
where breaker base and mid cover meet. Mark the area to
drill using a drill or white pencil (Figure 5).
Figure 5: Mark the Area for Drilling Holes
After marking the area, drill the holes to a depth of
approximately 0.75” using a 0.156” bit. Finally install the
line shield using #10-16 thread cutting screws provided
(Figure 6).
Figure 6: Line Shield Installation
Breaker Installation
Ensure that all accessory connections are secure. Line up
mounting holes with enclosure. Place the bolts and tighten
to 300 in-lbs.
Neutral Sensor
For Power Break I connected in a three-phase four-wire
system please note the following regarding neutral sensor:
-
If the Power Break I has an Enhanced MVT Plus/PM
trip unit, the neutral sensor can be reused
- If the Power Break I has an Original MVT, RMS-9, or
EPIC trip unit, the neutral sensor can be reused.
However, a 1:1 isolation CT might be required to
properly isolate from multiple grounds.
- For Power Break I with any other trip unit, the
neutral sensor must be replaced. See Page 31, GET-
8052C for Neutral Sensor Options.