TD03309002E For more information visit:
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Storage, Handling, Installation and
Maintenance of Controllers
Technical Data
January 2005
Storage
Electrical control equipment which is to
be stored prior to its installation should
be checked before being placed in stor-
age for possible damage during transit.
It should then be repacked and stored
in a location which is clean and dry.
When storage is in or near buildings
under construction, provide covers to
protect the equipment against dust,
moisture and falling objects.
Apparatus stored for long periods may
corrode. Damage, while stored, will be
minimized by maintaining the best
possible storage conditions, and by
periodically inspecting the equipment
and arresting the progress of corro-
sion and other forms of deterioration
which may be found. A small amount
of heat will stop corrosion that occurs
from moisture due to condensation.
Handling
Industrial control equipment often
includes instruments, relays and simi-
lar devices which are readily damaged
when roughly handled. Because of
this, it is important that control equip-
ment be handled with care.
Lift unpacked controllers by lifting
angles when provided, and by the
frame or enclosure when special lifting
devices are not included. Never attempt
to lift a control by means of panel
mounted switches, contacters, etc.
If practical, the controller should not
be unpacked until it is delivered to the
plant location where it is to be
installed.
Unpacked controllers are more readily
damaged while being moved from one
point to another than controllers still in
the carton.
Location
Motor controllers should be located
within plain view of the motor and as
close to it as conditions will permit.
If possible, locate the controller in a
direct line between the power supply
and the motor to save cable and mini-
mize line losses.
Refer to local authorities having juris-
diction for specific requirements or
application considerations.
Installation
Industrial controllers are designed to
be installed in accordance with NFPA
70 (NEC) and operated and maintained
by adequately trained technicians in
accordance with safety practices of
NFPA 70E. These instructions do not
cover all details, variations, or combi-
nations of the equipment, its storage,
delivery, installation, check-out, safe
operation or maintenance. Care must
be exercised to comply with local,
state and national regulations, as well
as safety practices, for this class of
equipment.
1. The nameplate ratings of the con-
troller must agree with the power
supply and the rating of the load
(motor).
2. Controller mounting should be
solid to prevent vibration. When
the controller is provided with a
channel iron base, grout the base
in place. For high vibration appli-
cations, additional mounting
equipment may be required.
Refer to Technical Data documen-
tation of the controller for vibra-
tion ratings and installation
considerations.
3. Make connections in accordance
with the diagrams furnished with
the controller. Select 75°C wire in
accordance with the National Elec-
trical Code (NEC) where conductor
size is not specified in the instruc-
tion material furnished with the
controller.
Eaton’s Cutler-Hammer
®
Enclosed Control Units
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