Eaton Cutler-Hammer EGS Serie Mode D'emploi Et D'entretien page 22

Instructional Booklet
Page 22 Effective: July 2008
Step 4: Place the new wiring harness in the ATS.
Step 5: Connect the J1 through J8 plugs to the controller.
Step 6: Reattach the red wires to the contactor. Examine each
wire to find the name then refer to Figure 27 for the cor-
rect connection point.
Step 7: Apply utility (Source 1) power and place the generator
control selector switch in the "AUTO" position after the
wiring harness has been replaced. Test the system for
proper functionality.
7.4.1.6 Replacing the 100 A Lugs
UTILITY
LUGS
Figure 28. Replacing the 100 A Lugs.
Note: If you are replacing the lugs in a 100 A SE ATS, the service entrance
breaker cables must first be removed. Follow Steps 1 through 4 in Section
7.4.1.7 before performing the procedure that follows.
Step 1: Turn the utility (Source 1) power off and turn the genera-
tor (Source 2) control selector switch to the "OFF" posi-
tion before attempting to replace the lugs.
Step 2: Disconnect all wire cables from the contactor.
Step 3: Note their location then disconnect the red wires from the
contactor (see Figure 25).
Note: All wires connected to the contactor are labeled to ease
identification.
GENERATOR LUGS
LOAD LUGS
For more information visit: www.eaton.com
O & M Manual for the EGS Automatic
Transfer Switch with RTC-50 Control
For All ATSs
Step 4: Remove the four (4) screws securing the contactor to the
base plate using a blade screwdriver or 0.25 in. socket or
nut driver.
Step 5: Remove the two (2) generator lugs and the two (2) load
lugs using a blade screwdriver (see Figure 28).
Step 6: Once the load lugs have been removed, insert a blade
screwdriver up through the circular hole in the load lug
bus and remove screws securing the two (2) generator
lugs.
Step 7: Place the new utility lugs on the utility bus so the anti-
turn protrusions fit in the holes. Once the lugs are in
place, take one (1) supplied control wire terminal and
hold it underneath the bus. Using one (1) screw and one
(1) washer supplied, tighten the control wire terminal and
lug to the utility bus. Repeat the process of the second
utility lug. Ensure that no gaps are present between the
lugs and bus.
Step 8: Place the new generator lugs on the generator bus.
Once the lugs are in place, take one (1) supplied control
wire terminal and hold it underneath the bus. Using one
(1) screw and one (1) washer supplied, tighten the con-
trol wire terminal and lug to the generator bus. Repeat
the process of the second generator lug. Ensure that no
gaps are present between the lugs and bus.
Step 9: Secure the load lugs to the load bus using the hardware
supplied.
Note: The load lugs do not require control wire terminals.
Step 10: Secure the contactor to the base plate using the four (4)
screws supplied.
For SE ATSs
Step 11: Align the cables from the SE breakers with the contac-
tor. Secure the SE cables to the contactor and torque
per the torque information provided in the ATS.
Step 12: Reattach the red wires to the contactor. Examine each
wire to find the name then refer to Figure 28 for the cor-
rect connection point.
Step 13: Reconnect all cables to the contactor as per their original
connections.
Step 14: Apply utility (Source 1) power and place the generator
control selector switch in the "AUTO" position after the
lugs have been replaced. Test the system for proper
functionality.
IB00405003E - 70-8662