NEMA to IP Enclosure Classification

8/3/2019 NEMA to IP Enclosure Classification

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NEMA Enclosure Type Number IP IEC Enclosure Classification

1 IP10

2 IP11

3 IP54

3R IP14

3S IP54

4 AND 4X IP56

5 IP52

6 AND 6P IP67

12 AND 12K IP52

13 IP54

NEMA TYPE 1.

General Purpose - Type 1 enclosures are intended for use indoors, primarily to prevent accidenta

NEMA TYPE 2.

Dripproof-Indoor - Type 2 enclosures are intended for use indoors to protect the enclosed equipm

NEMA TYPE 3.

Dusttight, Raintight and Sleet - (Ice-) Resistant-Outdoor - Type 3 enclosures are intended for use

NEMA TYPE 3R.

Rainproof and Sleet- (Ice-) Resistant-Outdoor - Type 3R enclosures are intended for use outdoors to protect t

NEMA TYPE 3S.

Dusttight, Raintight and Sleet- (ice-) Proof-Outdoor - Type 3S enclosures are intended for use out

NEMA TYPE 4.

Watertight and Dusttight-Indoor and Outdoor - Type 4 enclosures are intended for use indoors o

NEMA TYPE 4X.

Watertight, Dusttight and Corrosion-Resistant - In door and Outdoor - Type 4X enclosures have

NEMA TYPE 5.

Superseded by Type 12 for Control Apparatus.

NEMA TYPE 6.

Submersible, Watertight, Dusttight and Sleet-( Ice-) Resistant-Indoor and Outdoor - Type 6 enclo

NEMA TYPE 7.

Class 1, Division 1, Group A, B, C or D- Indoor Hazardous Locations-Air-break Equipment - Ty

NEMA TYPE 8.

Class 1, Division 1, Group A, B, C or D-indoor Hazardous Locations-Oil-immersed Equipment -

NEMA TYPE 9.

Class II, Division 1, Group E, F, or G-indoor Hazardous Locations-Air-break Equipment - Type

NEMA TYPE 10.

MESA (Formally Bureau of Mines) Type 10 enclosures shall be designed to meet the requirement


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NEMA TYPE 11.

Corrosion-resistant and Dripproof- Oil-immersed-Indoor - Type 11 enclosures are corrosion-resi

NEMA TYPE 12.

Industrial Use-Dusffight and Driptight-Indoor - Type 12 enclosures are intended for use indoors t

NEMA TYPE 13.

Oiltight and Dusttight-Indoor - Type 13 enclosures are intended for use indoors primarily to hou


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l contact of personnel with the enclosed equipment, in areas where unusual service conditions do not exist.

ent against falling non-corrosive liquids and failing dirt. They shall have provision for drainage. If provisio

utdoors to protect the enclosed equipment against windblown dust and water. They are not sleet- (ice-) pr

he enclosed equipment against rain and meet the requirements of Underwriters' Laboratories, Inc., Public

doors to protect the enclosed equipment against windblown dust and water and to provide for its operation

outdoors to protect the enclosed equipment against splashing water, seepage of water, failing or hose dire

the same provisions as Type 4 enclosures and, in addition, are corrosion-resistant.

sures are intended for use indoors or outdoors where occasional submersion is encountered. They shall pro

e 7 enclosures are intended for use indoors, in the atmospheres and locations defined as Class 1, Division I

ype 8 enclosures are intended for use indoors, in the atmospheres and locations defined as Class 1, Divisio

enclosures are intended for use indoors in the atmospheres defined as Class 11, Division I and Group E, F,

s of Schedule 2G (1968) of the Mining Enforcement Safety Administration, U.S. Department of the Interior


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tant and are intended for use indoors to protect the enclosed equipment against dripping, seepage and exte

o protect the enclosed equipment against fibers, flying, lint, dust and dirt, and light splashing, seepage, dri

e pilot devices such as limit switches, foot switches, pushbuttons, selector switches, pilot lights, etc., and to


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ee Part ICS 1-108. In addition, they provide protection against falling dirt.

n is made for the entrance of conduit at the top, it shall consist of a conduit hub or the equivalent. When co

of. They shall have conduit hubs or equivalent provision for watertight connection at the conduit entrance

tion No. UL 508, applying to "Rainproof Enclosures." They are not dust-, snow-, nor sleet (ice-) proof. Th

when the enclosure is covered by external ice or sleet. These enclosures do not protect the enclosed equip

ted water, and severe external condensation. They are sleet-resistant but not sleet- (ice-) proof. They shall

tect the enclosed equipment against a static head of water of 6 feet for 30 minutes, dust, splashing or extern

nd Group A, B, C or D in the National Electrical Code. The letter or letters A, B, C or D which indicate th

I and Group A, B, C or D in the National Electrical Code. The letter or letters A, B, C or D which indicate

or G in the National Electrical Code. The letter or letters E, F, or G which indicate the dust atmospheres i

, for equipment to be used in mines with atmospheres containing methane or natural gas, with or without c


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rnal condensation of corrosive liquids. In addition, they protect the enclosed equipment against the corrosi

ping and external condensation of noncorrosive liquids. There shall be no holes through the enclosure and

rotect these devices against lint and dust, seepage, external condensation, and spraying of water, oil or cool


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mpletely and properly installed, these enclosures shall prevent the entrance of dripping liquid at a higher le

, mounting means external to the equipment cavity, and provision for locking.

y shall have conduit hub or equivalent provision for watertight connection at the conduit entrance when th

ent against malfunction resulting from internal icing; where this is a requirement, the apparatus manufact

ave conduit hubs or equivalent provision for watertight connection at the conduit entrance and mounting

l condensation of non corrosive liquids, falling or hose-directed water, lint and seepage. They are not sleet

e gas or vapor atmospheres in the hazardous location shall appear as a suffix to the designation "Type 7" t

the gas or vapor atmospheres in the hazardous location shall appear as a suffix to the designation "Type 8

the hazardous location shall appear as a suffix to the designation "Type 9" to give the complete NEMA de

al dust. Additional information may be found in Bulletin 541 and Information Circular 8227.


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e effects of fumes and gases by providing for immersion of the equipment in oil. They shall have conduit hu

no conduit knockouts or conduit openings, except that oil tight or dusttight mechanisms may be mounted t

ant. They shall have oil resistant gaskets and, when intended for wall or machine mounting, shall have mou


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vel than the lowest live part within the enclosure.

e conduit enters at a level higher than the lowest live part, provision for locking, and provision for drainag

rer should be consulted. These enclosures shall have conduit hubs or equivalent provision for watertight c

eans external to the equipment cavity.

(ice-) proof. They shall have conduit hubs or equivalent provision for watertight-connection at the conduit

give the complete NEMA designation and correspond to Class 1, Division 1, Group A, B, C or D, respectiv

to give the complete NEMA designation and correspond to Class 1, Division 1, Group A, B, C or D, respe

signation and correspond to Class 11, Division 1, Group E, F, or G, respectively, as defined in the National


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bs or equivalent provision for watertight connection at the conduit entrance and mounting means external

rough holes in the enclosure when provided with oil-resistant gaskets. Doors shall be provided with oil-resi

nting means external to the equipment cavity. They shall have no conduit knockouts or unsealed openings


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. When completely and properly installed, these enclosures shall prevent the entrance of rain at a level hig

nnection at the conduit entrance, mounting means external to the equipment cavity, and provision for lock

entrance and mounting means external to the equipment cavity.

ely, as defined in the National Electrical Code. These enclosures shall be designed in accordance with the r

tively, as defined in the National Electrical Code. These enclosures shall be designed in accordance with th

Electrical Code. These enclosures shall prevent the ingress of explosive amounts of hazardous dust. if gaske


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to the equipment cavity.

stant gaskets. In addition, enclosures for combination controllers shall have hinged doors, which swing hori

roviding access into the equipment cavity. All conduit openings shall have provision for oiltight conduit en


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er than the lowest live part.

ing. In addition, they shall have sleet- (ice-) proof operating mechanisms, the ability to support the addition

quirements of Underwriters' Laboratories, Inc., "Industrial Control Equipment for Use in Hazardous Loc

requirements of Underwriters' Laboratories, Inc., Publication No. UL 698, and shall be marked to show t

ts are used, they shall be mechanically attached and of a noncombustible non deteriorating, verminproof m


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zontally and require a tool to open. When intended for wall mounting, Type 12 enclosures shall have moun

ry.


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al weight of the ice, and the ability to withstand removal of the ice by a hand tool to permit access to the en

tions," UL 698, and shall be marked to show the Class and Group letter designations.

e Class and Group letter designations.

aterial. These enclosures shall be designed in accordance with the requirements of Underwriters' Laborato


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ting means external to the equipment cavity, captive closing hardware, and provision for locking.


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losure interior.

ries, Inc., Publication No. UL 698, and shall be marked to show the Class and Group letter designations.

Documents

NEMA to IP Enclosure Classification