NEMA Ratings: What are they?
NEMA 250 is a product standard that addresses many aspects of enclosure design and performance.
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Protection against solid objects |
Approx IP equivalent
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1
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Indoor, protection from contact.
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IP23
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2
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Indoor, limited protection from dirt and water.
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IP30
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3
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Outdoor, some protection from rain, sleet, windblown dust and ice.
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IP64
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3R
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Outdoor, some protection from rain, sleet and ice.
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IP32
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4
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Indoor or outdoor, some protection from windblown dust, rain, splashing water, hose-directed water and ice.
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IP66
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4X
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Indoor or outdoor, some protection from corrosion, windblown dust, rain, splashing water, hose-directed water and ice.
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IP66
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6
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Indoor or outdoor, some protection from ice, hose-directed water, entry of water when submerged at limited depth.
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IP67
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12
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Indoor, protection from dust, falling dirt and dripping non-corrosive liquids.
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IP55
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13
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Indoor, protection from dust, spraying water, oil and non-corrosive liquids.
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IP65
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Tech Topics 
