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NEMA-4X Type 4X enclosures are intended for indoor and outdoor use
primarily to provide a degree of protection against corrosion,
wind-blown dust and rain, splashing water, and hose-directed
water.
Source: NEMA Publication No. 250, Part 1, Page 1
TECA products with the "X" designation have Mil-Spec fans,
o-ring sealed power supplies, no exposed electronic components,
stud/gasket mounting, and Mil-Spec finishes. Products with the "XE"
designation have sealed fans, sealed components, stud/gasket
mounting, and Mil-Spec finishes. They are designed to maintain the
enclosure rating and perform in the rated environment. Applies to
X and XE models.
Source: NEMA Publication No. 250, Part 1, Page 1
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