UL 50-2020 pdf free download

UL 50-2020 pdf free download.Enclosures for Electrical Equipment ,Non-Environmental Considerations.
TYPE 2 — Enclosures constructed for indoor use to provide a degree of protection to personnel against access to hazardous parts; to provide a degree of protection against ingress of solid foreign objects (falling dirt); 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 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 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, and snow): and that will be undamaged by the external formation of ice on the enclosure.
TYPE 3R — Enclosures 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 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, and snow): and that will be undamaged by the external formation of ice on the enclosure.
TYPE 3S — Enclosures 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 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, and snow); and for which the external mechanism(s) remain operable when ice laden,
TYPE 3X — Enclosures 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 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. and snow); that provide an increased level of protection against corrosion: and that will be undamaged by the external formation of ice on the enclosure.
TYPE 3RX — Enclosures 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 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, and snow); that provide an increased level of protection against corrosion; and that will be undamaged by the external formation of ice on the enclosure.
TYPE 3SX — Endosures 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 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, and snow); that provide an increased level of protection against corrosion: and for which the external mechanism(s) remain operable when ice laden.UL 50-2020 pdf free download.