NEMA Enclosures

  • Reference Data

    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.