GE Industrial Solutions ProTrip Conversion Kits DB-25, DBL-25, DB-50, DBL-50 - Manual (Page 12)

Installing the Trip Unit Mounting Bracket
The trip unit mounting bracket, shown in Figure 19,
mounts the trip unit and flux shifter to the breaker frame.
1. Mount the trip unit mounting assembly to the right
side of the breaker frame, as follows:
1a. For a DB-50 breaker, mount the bracket
assembly to the existing tapped hole in the
breaker frame with the two
5 / 16 -18 x 1 / 2 " bolts
and lock washers provided.
Ensure that the 10-32 pivot screw in the
mounting bracket is inserted through the slot in
the trip paddle, as shown in Figure 20.
1b. For a DB-25 breaker, be sure that the reset arm
on the left side of the flux shifter assembly is
hooked over the cross bar, as shown in Figure
21.
Attach the mounting bracket assembly to the
existing tapped holes in the breaker frame with
the two
1 / 4 -20 x 3 / 4 " bolts and lock washers
provided.
Attach the spring clamp to the existing hole in the
breaker frame, as shown in Figure 22, with the
supplied
1 / 4 -20 x 3 / 4 " bolt, flat washer, and lock
washer. Slide the clamp against the base of the
flux shifter assembly, then tighten the bolt.
Connect the spring from the flux shifter assembly
to the clamp.
Figure 19. Trip unit and flux shifter mounting bracket
assembly.
Figure 20. DB-50 trip unit bracket installation.
Figure 21. DB-25 flux shifter reset arm installed on the
cross bar.
Cross
Bar
Reset
Arm
Pivot
Screw
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