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Instructional Booklet
Page 30
Effective: August 2007
.
Figure 43. Stab Connections at the Service Entrance Breaker.
Step 4: Remove the screw securing the top of the service
entrance breaker to the mounting bracket using a blade
screwdriver or 0.25 in. nut driver. Remove the service
entrance breaker from the ATS (see Figure 44).
Figure 44. Location of the Top Service Entrance Breaker Mounting
Screw.
Step 5: Align the new service entrance breaker with the holes in
the mounting bracket and the contactor bus connections.
Note that the stabs of the service entrance breaker
should be between mounting bracket red insulating
blocks and the contactor bus connections.
Step 6: Loosely secure the top of the service entrance breaker to
the mounting bracket using the hardware provided (see
Figure 44).
Step 7: Align the utility lug extension stabs with the SE breaker
and contactor. Firmly secure the utility bus extension
stabs to the SE Breaker and contactor using original hard-
ware.
Step 8: Firmly tighten the screw securing the top of the service
entrance breaker to the mounting bracket.
Step 9: Reconnect the cables to the line side lugs on the service
entrance breaker.
Step 10:Apply utility (Source 1) power and place the generator
control selector switch in the "AUTO" position after the
service entrance breaker has been replaced. Test the
system for proper functionality.
SCREW
For more information visit: www.eaton.com
O & M Manual for the CHGENLC Automatic
Transfer Switch with ATC-100 Control
7.4.1.10 100A and 200A Generator Breakers
GENERATOR
BREAKER
Figure 45. Generator Breakers Installed (200A SE ATSs).
Step 1: Turn the utility (Source 1) power off and turn the genera-
tor (Source 2) control selector switch to "OFF" position
before attempting to replace the generator breaker.
Step 2: Disconnect the cables from the lugs on the line side of the
generator breaker using 6mm allen wrench.
Step 3: Remove the four (4) bolts, lock washers, and flat washers
securing the jumpers between the emergency lugs of the
contactor and the load lugs of the generator breaker using
a 7/16 in. wrench or nut driver. (see Figure – 46)
Figure 46. 200A SE Generator Breaker
Step 4: Disconnect the jumpers between the generator breaker
and the lugs at terminals E1 & E2 on the generator
(Source 2) side of the contactor.
SERVICE
ENTRANCE
BREAKER
JUMPERS
BOLTS
IB00405002E
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