GE Industrial Solutions ProTrip Conversion Kits K-225, K-600, K-800, K-1600 - Manual (Page 5)

SECTION 3. DISASSEMBLING THE
BREAKER
I-T-E K series breaker frames need not be separated
front and back for installation of the Conversion Kit. The
general procedure is to remove and disassemble the trip
unit housing, then install the kit.
First, remove the breaker to a clean, well-lighted work
bench and place it in the upright position, so that both the
front and back are easily accessible.
I-T-E 225–800 Ampere Breakers
The electromechanical trip units are contained in a
common, insulated housing, as shown in Figure 1. Use
the following procedure to remove the trip units.
1. Remove the five Philips-head screws holding the trip
unit housing in place at the rear of the breaker. Save
the hardware for later reinstallation.
NOTE: On some I-T-E breakers, the load-side draw-out
fingers must also be removed.
2. Remove and discard the two Philips-head screws
mounting the trip unit to the contact arm on each
phase, as shown in Figure 1.
3. Remove the trip unit housing assembly from the rear
of the breaker, as shown in Figure 2.
5
Figure 1. Removing the insulated housing on a K-225, K-
600, or K-800 breaker.
Figure 2. Trip unit housing removed, 225–800 A
breakers.