Cut Sheet

V8-A2-2 Volume 8—Sensing Solutions CA08100010E—November 2012 www.eaton.com
Appendix 2
Enclosure Ratings
IEC Environmental Enclosure Ratings
Examples of Designations
Index of Enclosure Ratings—IEC
1
st
Characteristic Numeral 2
nd
Characteristic Numeral
NEMA Definitions Pertaining to Non-hazardous Locations—NEMA Standard 250
Type 1
Enclosures are intended for
indoor use, primarily to
provide a degree of
protection against contact
with the enclosed equipment.
Type 3
Enclosures are intended for
outdoor use, primarily to
provide a degree of
protection against windblown
dust, rain, sleet and external
ice formation.
Type 3R
Enclosures are intended for
outdoor use, primarily to
provide a degree of
protection against falling rain,
sleet and external ice
formation.
Type 4
Enclosures are intended for
indoor or outdoor use,
primarily to provide a degree
of protection against
windblown dust and rain,
splashing water and hose-
directed water.
Type 4X
Enclosures are intended for
indoor or outdoor use,
primarily to provide a degree
of protection against
corrosion, windblown dust
and rain, splashing water and
hose-directed water.
Type 6
Enclosures are intended for
indoor or outdoor use,
primarily to provide a degree
of protection against the
entry of water during
occasional temporary
submersion at a limited
depth.
Type 6P
Enclosures are intended for
indoor or outdoor use,
primarily to provide a degree
of protection against the
entry of water during
prolonged submersion at a
limited depth.
Type 12
Enclosures are intended for
indoor use, primarily to
provide a degree of
protection against dust,
falling dirt, and dripping non-
corrosive liquids.
Type 13
Enclosures are intended for
indoor use, primarily to
provide a degree of
protection against dust,
spraying of water, oil and
non-corrosive coolant.
Numeral Description Numeral Description
Protection Against Contact and the Penetration of Solid Bodies 0 Not protected
0 Not protected 1 Protection against dripping water
1 Protection against solid objects greater than 50 mm 2 Protection against dripping water when tilted up 15 degrees
2 Protection against solid objects greater than 12 mm 3 Protection against rain
3 Protection against solid objects greater than 2.5 mm 4 Protection against splashing water
4 Protection against solid objects greater than 1.0 mm 5 Protection against water jets
5 Dust protected 6 Protection against heavy seas
6 Dust-tight 7 Protection against the effects of immersion
8 Protection against immersion
2
nd
Characteristic Numeral
See table below
IP 4 4
1
st
Characteristic Numeral
See table below
2
nd
Characteristic Numeral
See table below
IP 2 3
1
st
Characteristic Numeral
See table below
An enclosure with this designation is protected
against the penetration of solid objects greater
than 1.0 mm and against splashing water.
An enclosure with this designation is protected
against the penetration of solid objects greater
than 12 mm and against rain.