GE Industrial Solutions ProTrip Conversion Kits DB-25, DBL-25, DB-50, DBL-50 - Manual (Page 14)

Adjusting the Flux Shifter
With the breaker in the CLOSED position, the gap
between the adjustment screw and the trip paddle should
be
1 / 16 inch, as shown in Figure 25. For safety, OPEN
the breaker before adjusting the screw with a 1 / 4 -inch
wrench. CLOSE the breaker to check the adjustment.
WARNING: Be extremely careful when working on a
CLOSED breaker. Do not reach into the mechanism
while adjusting the flux shifter.
Optional Test – The flux shifter may be tested by closing
the breaker and applying a 9 Vdc power source to the
flux shifter leads (the red wire is positive). The breaker
should trip.
Figure 25. Adjusting the flux shifter.
Connecting the Trip Unit Wiring Harness
1. Join the four-pin connector on the trip unit harness to
the four-pin connector on the flux shifter.
2. Run the CT leads through the inside of the breaker
frame, as shown in Figure 26. Connect the harness
leads to the screw terminals on each CT. The black
wire (tap) connects to the left terminal and the white
wire (common) to the right terminal.
3. Use the wire ties provided to secure the harness
back against the frame. Tie the harness to each CT
assembly, as shown in Figure 26. Ensure that the
wiring will not interfere with any moving parts.
Figure 26. Wiring harness installed on the CTs.
Flux Shifter
Adjustment
Screw
Gap
Wiring
Harness
Wire Tie
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