3
Instruction Leaflet
IL29C092E
E
ive November 2013
Installation Instructions for KD, HKD, KDC, CKD
CHKD, Circuit Breakers with Digitrip OPTIM
Trip Unit and Powernet and/or Zone Interlock
EATON CORPORATION
www.eaton.com
the line and load conductors; torquing terminals; and
torque. If Warning Label is supplied with terminals,
attaching terminal shields. Circuit breaker frames, rat-
place Warning Label on upper portion of circuit breaker
ing plugs, accessories, mounting hardware, and
cover.
unmounted terminals may be supplied in separate pack-
ages. To install the circuit breaker, perform the follow-
ing steps.
WARNING
2-1. Compare nameplate data with existinq equipment
ratings and system requirements make sure that the
THE VOLTAGES IN ENERGIZED EQUIPMENT CAN
circuit breaker is suitable for the intended installation.
CAUSE DEATH OR SEVERE PERSONAL INJURY.
Prior to mounting, confirm that the circuit breaker has
BEFORE MOUNTING THE CIRCUIT BREAKER IN AN
not been damaged during transit or initial handling.
ELECTRICAL SYSTEIVI, MAKE SURE THERE IS NO
VOLTAGE PRESENT WHERE WORK IS TO BE PER-
2-2. Remove installed cover screws and cover.
FORMED.
The circuit breaker must be i n the tripped or OFF
position to remove the cover.
2-3. If not already installed, install the rating plug and, if
required, accessories in the circuit breaker frame.
I f required, internal accessory installation i n any
type of circuit breaker should be done before the
circuit breaker is mounted and connected. Refer to
individual accessory instruction leaflets.
2-4. Replace cover and install pan-head screws fol-
lowed by thread-forming screws.
CAUTION
WHEN REMOVED AND REINSTALLED. THREAD
FORMING S
C
REWS W
I
LL TRY
TO REFORM THE
THREADS IN THE BASE. CARE SHOULD BE
TAKEN EVERY TIME A THREAD-FORIVIING SCREW
IS USEDTO ENSURE THE SCREW STARTS IN THE
ORIGINAL THREADS. DAMAGED THREADS CAN
RESULT IN IWIPROPER CIRCUIT BREAKER COVER
RETENTION.
2-5. If not already installed, mount wire connecting ter-
minals as shown in Figure 2-1 Secure the terminals to
the circuit breaker using a 7/32 inch socket wrench.
Torque to
6
to 8 lb.-ft. (8 to 11 N.m.) With the circuit
breaker mounted and before the conductors are
installed and conductor clamping screws inserted, the
terminal mounting screws may be checked for correct
Depending on the equipment configuration, the cir-
cuit breaker can be mounted using different styles
of hardware. The following steps describe how to
mount the circuit breaker using standard hardware.
When special hardware i s needed (for example, with
the electrical operator), the instruction leaflet
describing the accessory also describes the special
mounting arrangements.
2-6. To mount circuit breaker, perform the following
steps:
a. For individual surface mounting, drill mounting
panel using the drilling plan shown in Figure 2-2.
For panelboard mounting, only load end support
mounting holes are required. For deadfront cover
applications, cut out cover to correct escutcheon
dimensions, see Figure 2-3. Make sure accessory
wiring is accessible when the circuit breaker is
mounted.
b. Position circuit breaker on mounting surface.
Labels with accessory connection schematic dia-
grams are provided on the side of the circuit break-
er. A note should be made of the diagrams i f the
labels cannot be seen when the circuit breaker is
mounted.
c. Install circuit breaker mounting screws and wash-
ers. Tighten screws firmly, but do not exceed 28 lb.-
in.
(3 N.m.).
