Cut Sheet

V10-T1-4 Volume 10—Enclosed Control CA08100012E—November 2012 www.eaton.com
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1.1
Overview
Enclosed Control Products
Technical Reference
Enclosure Types
Enclosures provide mechanical and electrical protection for operator and equipment. Brief
descriptions of the various types of enclosures offered by Eaton are given below. See NEMA
®
Standards Publication No. 250 for more comprehensive descriptions, definitions and/or test criteria.
All Eaton enclosures are NEMA ICS 6 compliant.
Enclosure Type Overview
Type 1 (Conforms to IP40)—
for Indoor Use
Type 3R (Conforms to IP52)—
for Outdoor Use
Type 4 (Conforms to IP65)—
for Indoor or Outdoor Use
Type 4X (Conforms to IP65)—
for Indoor or Outdoor Use
Suitable for most applications where
unusual service conditions do not exist and
where a measure of protection from
accidental contact with enclosed
equipment is required. Designed to meet
tests for rod entry and rust resistance.
Enclosure is sheet steel, treated to resist
corrosion. Depending on the size, knockouts
are provided on the top, bottom and
sometimes on the side.
Primarily intended for applications where
falling rain, sleet or external ice formations
are present. Gasketed cover. Designed to
meet tests for rain, rod entry, external icing
and rust resistance. Enclosure is sheet
steel, treated to resist corrosion.
Depending on the size, a blank cover plate
is attached to the top (for a conduit hub)
and knockouts are provided on the bottom.
Cover-mounted pilot device holes are
provided and covered with hole plugs.
Provides a measure of protection from
splashing water, hose-directed water and
wind blown dust or rain. Constructed of
sheet steel with gasketed cover.
Designed to meet tests for hose-down,
external icing and corrosion protection.
When conduit connections are specified,
enclosure has two watertight hubs (power)
installed top and bottom or one control hub
installed in bottom—depending on size.
Cover-mounted pilot device holes are
provided and covered with hole plugs.
Provides a measure of protection from
splashing water, hose-directed water, wind
blown dust, rain and corrosion. Constructed
of stainless steel with gasketed cover.
Designed to meet same tests as Type 4
except enclosure must pass a 200-hour salt
spray corrosion resistance test.
304-grade stainless steel provided as
standard. Select 316-grade option for
improved corrosion resistance.
Type 7/9—
for Hazardous Gas Locations
Type 12 (Conforms to IP62)—
for Indoor Use Safety Interlock
For use in Class I, Group B, C or D; Class II,
Groups E, F and Class III indoor locations as
defined in the National Electrical Code
®
.
Type 7/9 enclosures must withstand the
pressure generated by the explosion of
internally trapped gases and be able to
contain the explosion so that gases in the
surrounding atmosphere are not ignited.
Under normal operation, the surface
temperature of the enclosure must be
below the point where it could ignite
explosive gases present in the surrounding
atmosphere. Designed to meet explosion,
temperature and hydrostatic design tests.
Provides a degree of protection from
dripping liquids (non-corrosive), falling dirt
and dust. Designed to meet tests for drip,
dust and rust resistance. Constructed of
sheet steel. Hole plugs cover pilot device
holes. There are no knockouts, hub cover
plates or hubs installed.
The Type 12 enclosure can be ordered with
a safety interlock on the door that can be
padlocked off. A vault-type door latch
system is used. A tapered plate holds the
gasketed door tight against the case edge
to provide a positive seal. The special door
interlock consists of the door handle and a
screwdriver operated cover defeater.
The cover defeater and the disconnect
interlock defeater are both recessed
screwdriver operated devices that cannot
be manipulated with other types of tools.