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Reference » Reference Data » NEMA Enclosures
NEMA Enclosures
1 Indoor Minimal protection
12 Indoor Dust, dirt, dripping liquid tight
4 Outdoor Windblown dirt, dust, rain; splashing and hose directed water
4X Outdoor NEMA 4 plus corrosion resistance

Note: All categories are not listed here.  These four categories cover most NEMA rated enclosures in actual use.  They are listed in order of increasing protection.

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