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Installation Instructions for Motor Operator for
L-Frame and MDL-Frame Circuit Breakers and
Molded Case Switches
SHOULD BE PAID TO REVERSE FEED APPLICA-
TIONS TO ENSURE NO VOLTAGE IS PRESENT.
THE VOLTAGES IN ENERGIZED EQUIPMENT CAN
CAUSE INJURY OR DEATH.
!
ENERGIZING THE MOTOR OPERATOR WHEN IT IS
NOT MOUNTED TO A CIRCUIT BREAKER MAY
DAMAGE IT. ENSURE THAT THE MOTOR OPERA-
TOR IS SECURELY MOUNTED TO A CIRCUIT
BREAKER BEFORE OPERATING ELECTRICALLY.
NOTICE
A minimum 1 Kva power source is recommended
for motor operator.
When the circuit breaker is already installed, the
existing hardware must be replaced.
When the motor operator is mounted to the circuit
breaker, the circuit breaker nameplate is not visible.
Before mounting the motor operator, make sure the
circuit breaker nameplate information is recorded
for future reference. A blank nameplate is supplied
for this purpose. The nameplate should be placed
on the top side of the motor operator.
The installation procedure consists of inspecting the
motor operator for completeness and mounting the
motor operator to the circuit breaker and connecting the
control wires. To install the electrical operator perform
the following steps:
2-1. Remove motor operator from packing. Inspect it
for completeness (Figure 2-1 ). Check the motor opera-
tor nameplate to make sure that the rating agrees with
the installation requirements; and make sure that
mounting hardware is included.
The motor operator is suitable for application with 3 and
4 pole series C circuit breaker types LDB, LD, HLD,
LDC, LW, HLW, MDL, LWC, plus LA circuit breaker
family.
2-2. Install circuit breaker handle extension using 3
thread cutting screws supplied.
17-19 lb-in, (2 Nm).
2-3. The breaker must be mounted with special studs
(Figure 2-1 ) supplied. If the circuit breaker is already
installed, replace mounting hardware. (At least one of
the studs must be grounded to insure that the motor
CAUTION
Torque screws to
20-22 lb-in, but do not exceed 22 lb-in (2.5 Nm).
EATON CORPORATION www.eaton.com
Instruction Leaflet IL29C203J
3
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