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The A20R166HCR is a medium drip-shield hinged-cover enclosure manufactured by Hoffman Enclosures, Inc. Constructed from galvanized steel with a polyester powder-coated ANSI 61 gray finish, it provides Type 3R protection against rain, sleet, and snow for outdoor applications. The unit measures 20.00 inches in length, 16.00 inches in width, and 6.00 inches in depth (508.00mm x 406.40mm x 152.40mm). It features a continuous hinge with a stainless steel pin and captive plated steel screws for secure cover fastening.
Verify the specific material grade and coating thickness requirements against project specifications before procurement. Confirm that the ANSI 61 gray color matches existing infrastructure aesthetics. Ensure the 20x16x6 inch dimensions accommodate all internal components with adequate clearance. Validate that the Type 3R rating satisfies local environmental exposure standards for the intended installation site.
Select this model when outdoor protection against precipitation is required without full watertight sealing. The galvanized steel offers corrosion resistance suitable for general outdoor use. Consider the hinged-cover design for frequent access needs compared to bolt-on alternatives. Verify that the medium size fits the available mounting space and supports the weight of internal equipment.
This component belongs to the NEMA 3R hinge-cover lift-off enclosure series designed for industrial outdoor use. It serves as a protective barrier for electrical systems exposed to weather elements. The product line emphasizes durability through galvanized steel construction and standardized dimensional formats for easy integration into existing panel layouts.
Public confirmed substitute part numbers are not provided in the source documentation.

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