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The Hoffman Enclosures A18R188NK is a Type 3R screw-cover junction box constructed from mild steel with an ANSI 61 gray polyester powder-coated finish. It measures 18 inches in height, 18 inches in width, and 8 inches in depth. The enclosure features a padlocking mechanism for security and provides IP32 protection against rain and sleet. It is UL 50/50E and CUL listed for outdoor use.
Verify the specific catalog number A18R188NK matches the required NEMA 3R rating and dimensions. Confirm that the absence of pre-drilled knockouts aligns with installation needs. Ensure compatibility with existing mounting hardware and check for any regional certification requirements such as CUL or UL listing before finalizing procurement.
Select this model when outdoor weather protection is required without the need for conduit entries. The fixed dimensions suit compact control setups. Consider the screw-cover style for frequent access needs. Verify that the interior gray color meets aesthetic or functional standards for the specific installation environment.
This component belongs to the Hoffman Screw-Cover Drip-Shield Type 3R series. It is designed for commercial and industrial outdoor applications where protection from falling water and ice is necessary. The series offers various sizes to accommodate different wiring volumes while maintaining a standardized protective profile.
Direct substitutes include other Type 3R screw-cover boxes with identical 18x18x8 inch dimensions. Ensure replacement units maintain the same steel material grade and IP32 rating. Verify that alternative models also feature padlocking provisions if security is a critical requirement.

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