5
Instruction Leaflet
IL29C204I
Effective October 2011
Installation Instructions for Motor Operator for
3- and 4-Pole ND, NB, NC, MD, MA, MC Type
Circuit Breakers and Molded Case Switches
EATON CORPORATION
www.eaton.com
3. OPERATION
Note: The motor operator does not permit a breaker
handle to indicate
its “TRIP” position. If
it
is desir-
able that the
trip position be indicated, the breaker
may be equipped with bell alarm contacts which
“MAKE” or “BREAK” upon automatic trip operation.
Contacts may be wired
to an external light or other
indicating device to then indicate trip.
CAUTION
MAKE SURE THAT ALL SENSITIVE EQUIPMENT
BREAKER
IS DISCONNECTED BEFORE OPERATING
THE MOTOR OPERATOR. SWITCHING OPERATIONS
CIALLY EQUIPMENT REQUIRING A CONTROLLED
SHUTDOWN.
COULD CAUSE DAMAGE TO EQUIPMENT
-
ESPE-
Electrical Operation
To check the electrical operation use the remote momen-
tary “ON” and “OFF” control devices, and perform the fol-
lowing steps: (refer to Fig.
2-2)
3-1. Pull up the setting pin and slide the locking arm
(white line) to the Electrical Operation mode,
(Figs. 3-1 and 3-2).
3-2. Energizing the “OFF” push button will cause the
breaker to go to its “OFF” position.
3-3. Energizing the “ON” push button will cause the
breaker to go to its “ON” position.
3-4. Press the “PUSH-TO-TRIP” button (see Fig. 3-1);
verify that the breaker trips. Energizing the “OFF”
button, motor operator will “RESET” the breaker.
Note: DO NOT use maintain type control switches.
Manual Operation
3-5. Pull up the setting pin and slide the locking arm
(white line) to the Manual Operation mode. In this
mode electrical power to the motor is cut off
(Figs. 3-1 and 3-3).
CAUTION
IF BREAKER
IS TRIPPED WHEN OFF, MOTOR OPER
-
ATOR MUST BE RECYCLED TO ON, THEN RESET
BREAKER WITH UVR DE-ENERGIZED.
PLIED WITH BREAKER, DO NOT OPERATE THE
3-6. Using the “HANDLE EXTENSION” to operate the
motor operator mechanism, throw to the “ON” and
FF” positions
.
3-7. Press the “PUSH-TO-TRIP” button to trip the circuit
breaker, and verify that the breaker has tripped.
Throw the “HANDLE EXTENSION” to the extreme
“OFF” position. This should “RESET” the breaker.
Lock-off
3-8. Pull up the setting pin and slide the locking arm
(white line) to the Manual Operation mode.
motor operator cannot be locked off while it is in
the “ON” position.
Power- off
The electrical supply to the motor will be automatically
cut off when the cover is removed, and also when using
Manual Operation (see paragraph 3-5).
4.
ADJUSTMENT
The following procedures describe the adjustment of the
motor operator limit switches if necessary:
Note: The motor operator has been adjusted at the
factory. Before attempting
to adjust the motor opera-
tor, verify that a
5 kVA Power Source for 48 Vdc,
24
Vdc ratings and a
1 kVA
Power Source for other rat-
ings are being used, and that all installation instruc-
tions have been followed. Verify that the circuit
breaker can be operated without the motor operator.
Under standard conditions the factory settings
should not require field adjustments.
CONNECTED TO THE LOAD SIDE
OF THE
CIRCUIT
(OFF), AND BACK TO ON.
IF
)
R
V
U
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S
A
E
L
E
R
E
G
A
T
L
O
V
R
E
D
N
U
N
A
IS SUP
-
3-9. Turn the locking arm 90 degrees to the
“LOCK-
OFF” position (Fig. 3-4) and insert up to 3 padlocks.
The
