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National Electrical Manufacturers Association
 
 
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The National Electrical Manufacturers Association or NEMA is a U.S.
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
-based association, which was created on September 1, 1926, when the Associated Manufacturers of Electrical Supplies and the Electric Power Club merged. It is headquartered in Rosslyn, Virginia
Rosslyn, Virginia

Rosslyn is an unincorporated area in Northern Virginia located in the northeastern corner of Arlington County, Virginia, north of Arlington National Cemetery and directly across the Potomac River from Georgetown, Washington, D.C....
. It sets many common standards
Standardization

Standardization is the process of developing and agreeing upon Standard . A standard is a document that establishes uniform engineering or technical specifications, criteria, methods, processes, or practices....
 used in electrical
Electricity

Electricity is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena such as lightning and static electricity, but in addition, less familiar concepts such as the electromagnetic field and electromagnetic induction....
 products among its over 400 members.

NEMA has established a range of standards for electrical equipment enclosures.






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The National Electrical Manufacturers Association or NEMA is a U.S.
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
-based association, which was created on September 1, 1926, when the Associated Manufacturers of Electrical Supplies and the Electric Power Club merged. It is headquartered in Rosslyn, Virginia
Rosslyn, Virginia

Rosslyn is an unincorporated area in Northern Virginia located in the northeastern corner of Arlington County, Virginia, north of Arlington National Cemetery and directly across the Potomac River from Georgetown, Washington, D.C....
. It sets many common standards
Standardization

Standardization is the process of developing and agreeing upon Standard . A standard is a document that establishes uniform engineering or technical specifications, criteria, methods, processes, or practices....
 used in electrical
Electricity

Electricity is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena such as lightning and static electricity, but in addition, less familiar concepts such as the electromagnetic field and electromagnetic induction....
 products among its over 400 members.

NEMA has established a range of standards for electrical equipment enclosures. For more detailed and complete information, see the NEMA Standards Publication 250.

NEMA defines standards for many commonplace electrical interconnects, as well as outlining manufacturing standards for electrical products, such as various grades of electrical enclosures
Enclosure (electrical)

An electrical enclosure is a cabinet for electrical equipment or electronic equipment to mount switches, Control knobs and Display devices and to prevent electrical shock to equipment users and protect the contents from the environment....
.

NEMA Enclosures

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NEMA defines standards for various grades of electrical enclosures
Enclosure (electrical)

An electrical enclosure is a cabinet for electrical equipment or electronic equipment to mount switches, Control knobs and Display devices and to prevent electrical shock to equipment users and protect the contents from the environment....
 typically used in industrial applications. Each is rated to protect against designated environmental conditions. A typical NEMA enclosure might be rated to provide protection against environmental hazards such as water
Water

Water is a common chemical substance that is essential for the survival of all known forms of life. In typical usage, water refers only to its liquid form or States of matter, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam....
, dust
Dust

Dust is a general name for minute solid particles with diameters less than 20 Thou . Particles in the Earth's atmosphere arise from various sources such as soil dust lifted up by wind, volcanic eruptions, and pollution....
, oil
Oil

An oil is a chemical substance that is in a viscosity liquid state at room temperature or slightly warmer, and is both hydrophobic and lipophilic ....
 or coolant
Coolant

A coolant is a fluid which flows through a device in order to prevent its overheating, transferring the heat produced by the device to other devices that utilize or dissipate it....
 or atmospheres containing corrosive agents such as acetylene
Acetylene

Acetylene is the chemical compound with the symbol carbonhydrogen. It is the simplest alkyne.As an alkyne, acetylene is Saturation because its two carbon atoms are Chemical bond together in a triple bond....
 or gasoline
Gasoline

File:GasCan.jpgGasoline or petrol is a petroleum-derived liquid mixture, primarily used as fuel in internal combustion engines.It consists mostly of aliphatic hydrocarbons, enhanced with iso-octane or the aromatic hydrocarbons toluene and benzene to increase its octane rating....
. A full list of NEMA enclosure types is available from the NEMA website
National Electrical Manufacturers Association

The National Electrical Manufacturers Association or NEMA is a United States-based association, which was created on September 1, 1926, when the Associated Manufacturers of Electrical Supplies and the Electric Power Club merged....
.

See also

  • NEMA connector
  • Energy efficiency
  • COCIR
    COCIR

    COCIR is the European Coordination Committee of the Radiography, Electromedical and Healthcare Information technology Industry. It is a non-profit trade association, which was founded in 1959, and represents the medical technology industry in Europe....


External links

  • (German equivalent to the NEMA)