What is NEMA Type 4X enclosure?

Designed for indoor and outdoor use Degree of protection for personnel, against access to hazardous internal components Degree of protection of the equipment contained, against ingress of solid foreign objects - windblown dust, lint, fibers & flyings Degree of protection against the ingress of water - rain, sleet, snow, splashing water and hose-down Additional level of protection against corrosion Undamaged by the formation of ice outside the enclosure