NEMA
stands for the National Electrical Manufacturers
Association has established a range of standards
for electrical equipment enclosures. For more
detailed and complete information, NEMA
Standards Publication 250. You can reach the
National Electrical Manufacturers Association
at: http://www.nema.org/
Here is a partial list of the NEMA standards
that our products adhere to:
NEMA 4 - 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;
and to be undamaged by the formation of ice on
the enclosure. They are not intended to provide
protection against conditions such as internal
condensation or internal icing.
NEMA 4X - 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; and to
be undamaged by the formation of ice on the
enclosure. they are not intended to provide
protection against conditions such as internal
condensation or internal icing.
NEMA 12 - Type 12 enclosures are intended for
indoor use primarily to provide a degree of
protection against circulating dust, falling
dirt, and dripping none corrosive liquids. They
are not intended to provide protection against
such conditions as internal condensation.
NEMA 13 -Type 13 enclosures are intended for
indoor use primarily to provide a degree of
protection against lint, dust, spraying of
water, oil and none corrosive coolant. They are
not intended to provide protection against
conditions such as internal condensation.
Computer Security & Solutions has embraced these NEMA industry standards to ensure higher quality
products offering benchmark comparisons for our
customers.
COMPARISON BETWEEN NEMA ENCLOSURE TYPE NUMBERS
AND IEC ENCLOSURE CLASSIFICATION DESIGNATIONS
NEMA
Enclosure comparison between IP and NEMA.
Type Number IEC Enclosure
Type Number
NEMA 4 & 4X IP56
NEMA 12 IP52
NEMA 13 IP54
NOTE: This comparison is based on tests
specified in IEC Publication 529
TABLE A-1 CONVERSION OF NEMA TYPE NUMBERS TO IEC
CLASSIFICATION DESIGNATIONS (CANNOT BE USED TO
CONVERT IEC CLASSIFICATION DESIGNATIONS TO NEMA
TYPE NUMBERS)
NEMA is used primarily in the USA and IP ratings
are used in Europe.
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