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O & M Manual for the CHGENLC Automatic
Transfer Switch with ATC-100 Control
For SE ATS, skip this step.
Step 10: Place the new utility lugs on the utility bus so the anti-
turn protrusions fit in the holes (see Figure 39). Once
the lugs are in place, secure them to the utility bus
using one (1) screw and one (1) washer supplied.
Repeat the process of the second utility lug. Ensure
that no gaps are present between the lugs and bus.
Step 11: Place the new generator lugs on the generator bus so
the anti-turn protrusions fit in the holes (see Figure 39).
Once the lugs are in place, secure them to the generator
bus using one (1) screw and one (1) washer supplied.
Repeat the process of the second generator lug. Ensure
that no gaps are present between the lugs and bus.
Step 12: Secure each load lug to the detached load bus using one
(1) screw and one (1) washer supplied.
Step 13: Slide the completed load bus extension back into the
contactor and secure each extension using the four (4)
Phillips screws (see Figure 42).
For SE switches only.
Step 14: Align the utility lug extension with the SE breaker and
contactor. Secure the utility bus extension to the SE
breaker and contactor using the original hardware.
Note: If you are replacing the lugs in a 200A SE ATS, the service entrance
breaker must be reinstalled at this time. Also reconnect the jumpers
between the generator breaker (inside the ATS) and the E1, E2 terminals
on the generator (Source 2) side of the contactor. Follow Steps 5 through
10 in Section 7.4.1.9 (for 100A & 200A Service Entrance breaker) and
Step 8 in Section 7.4.1.10 (for 100A & 200A generator breaker).
Step 15: Secure the contactor to the base plate using the four (4)
screws supplied.
Step 16: Reattach the twelve (12) red wires to the contactor.
Examine each wire to find the name then refer to Figure
32 for the correct connection point.
Step 17: Reconnect all wire cables to the contactor as per their
original connections.
Step 18: 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.
Step 19: Test the system for proper functionality.
IB00405002E
7.4.1.9 100 A and 200 A Service Entrance Breakers
Figure 42. Service Entrance Breakers Installed (200 A SE ATSs).
Step 1: Turn the utility (Source 1) power off and turn the genera-
Step 2: Disconnect the cables from the lugs on the line side of
Step 3: Remove the two (2) bolts, lock washers, and flat washers
For more information visit: www.eaton.com
Effective: August 2007
SERVICE
ENTRANCE
BREAKER
tor (Source 2) control selector switch to the "OFF" posi-
tion before attempting to replace the service entrance
breaker.
the service entrance breaker, using a 6mm allen wrench.
securing the utility bus extension stabs between the con-
tactor and SE breaker. Using a 7/16 in. wrench, nut
driver, or socket and ratchet, remove the utility bus
extension stabs (see Figure 43).
Instructional Booklet
Page 29
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