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| NEMA Enclosures For Non-Hazardous Locations |
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Type 1 - General-Purpose
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Indoor
Primarily to provide a degree of protection against contact with the enclosed equipment.
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Type 2: Drip-proof
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Indoor
Primarily to provide a degree of protection against limited amounts of falling water
and dirt.
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Type 3: Dust-Tight, Rain-Tight and Sleet (Ice) Resistant
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Outdoor
Primarily to provide a degree of protection against windblown dust, rain, sleet
and external ice formation.
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Type 3R: Rainproof and Sleet (Ice) Resistant
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Outdoor
Primarily to provide a degree of protection against falling rain, sleet and external
ice formation.
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Type 3S: Dust-Tight, Rain-Tight and Sleet (Ice) Proof
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Outdoor
Primarily to provide a degree of protection against windblown dust, rain, and sleet,
and to provide for operation of external mechanisms when ice laden.
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Type 4: Watertight and Dust Tight
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Indoor and Outdoor
Primarily to provide a degree of protection against windblown dust and rain, splashing
water, and hose-directed water.
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Type 4X: Watertight, Dust-Tight and Corrosion Resistant
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Indoor and Outdoor
Primarily to provide a degree of protection against corrosion, windblown dust and
rain, splashing water, and hose-directed water.
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Type 6: Submersible, Watertight, Dust-Tight and Sleet (Ice) Resistant
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Indoor and Outdoor
Primarily to provide a degree of protection against the entry of water during occasional
temporary submersion at a limited depth.
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Type 6P: Submersible, Watertight, Dust-Tight and Sleet (Ice) Resistant
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Indoor and Outdoor
Primarily to provide a degree of protection against the entry of water during occasional
prolong submersion at a limited depth.
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Type 11: Corrosion-Resistant and Drip-proof, Oil-Immersed
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Indoor
Primarily to provide, by oil immersion, a degree of protection to enclosed equipment
against the corrosive effects of liquids and gases.
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Type 12: Dust-Tight and Drip-Tight
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Indoor
Industrial Use Primarily to provide a degree of protection against dust, falling
dirt and dripping non corrosive liquids.
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Type 12K: Dust-Tight and Drip-Tight
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Indoor
Industrial Use With knockouts Primarily to provide a degree of protection against
dust, falling dirt and dripping non-corrosive liquids other than at knockouts.
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Type 13: Oil-Tight and Dust-Tight
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Indoor
Primarily to provide a degree of protection against dust, spraying of water, oil
and non-corrosive coolant.
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