GE Industrial Solutions ProTrip Conversion Kits K-225, K-600, K-800, K-1600 - Manual (Page 7)

Figure 6. Removing the trip unit housings on a K-1600
breaker.
Figure 7. Contact arm connections, 1600 A breaker.
3. Remove and discard the four Philips-head screws
above the load terminals that connect each trip unit
to the contact arm, as shown in Figure 7. The trip unit
assemblies can be removed by pulling them out of
the rear of the breaker frame.
4. Carefully drill out the four #10-32 screws holding
each trip unit in its housing, as shown in Figure 8.
5. Remove and save the two Philips-head screws that
hold the copper terminal extensions beneath the load
terminals of each trip unit housing, as shown in
Figure 8.
6. Remove and discard the hardware holding each
copper load terminal to the metal mounting brackets.
Separate each trip unit from its housing. Discard the
trip units and save the insulated housing and
mounting brackets, shown in Figure 9.
Figure 8. Electromechanical trip unit disassembly, 1600
A breaker.
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