Page 462 of Industrial & Commercial Electrical Enclosures by Hammond Mfg.

www.hammfg.com industry definitons nema standards definitions pertaining to non-hazardous locations type 1 enclosures are constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts and to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt type 2 enclosures are constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirty and to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water dripping and light splashing type 3 enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt and windblown dusty to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow and that will be undamaged by the external formation of ice on the enclosure type 3r enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow and that will be undamaged by the external formation of ice on the enclosure type 3s enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt and windblown dust to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow red for which the external mechanisms remain operable when ice laden type 3x enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt and windblown dusty to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow that provides an additional level of protection against corrosion and that will be undamaged by the external formation of ice on the enclosure type 3xr enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow that will be undamaged by the external formation of ice on the enclosure that provides an additional level of protection against corrosion and that will be undamaged by the external formation of ice on the enclosure type 3sx enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt and windblown dusty to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snowy that provides an additional level of protection against corrosion and for which the external mechanisms remain operable when ice laden type 4 enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt and windblown dusty to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow splashing water and hose directed water and that will be undamaged by the external formation of ice on the enclosure type 4x enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects windblown dusty to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water rain sleet snow splashing water and hose directed water that provides an additional level of protection against corrosion and that will be undamaged by the external formation of ice on the enclosure type 5 enclosures are constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt and settling airborne dust lint fibers and flyings and to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water dripping and light splashing type 6 enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water hose directed water and the entry of water during occasional temporary submersion at a limited depths and that will be undamaged by the external formation of ice on the enclosure type 6p enclosures are constructed for either indoor or outdoor use to provide a degree of protection to personnel against access to hazardous parts to provide a degree of protection of the equipment inside the enclosure against ingress of solid foreign objects falling dirt to provide a degree of protection with respect to harmful effects on the equipment due to the ingress of water hose directed water and the entry of water during prolonged submersion at a limited depths that provides an additional level of protection against corrosion and that will be undamaged by the external formation of ice on the enclosure 456 technical information quality enclosures service excellence © hammond manufacturing canada 519.822.2960 or 905.456.3770 usa 716.630.7030 data subject to change without notice

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