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Rectangular gray galvanized steel wall-mount enclosure with hinged solid cover and padlock hasp

HOFFMAN

HOFFMAN A20R166HCR electrical enclosure with padlock hasp

SKU CH-W2AF-9CMTA

Wall-mount carbon-steel enclosure with hinged solid cover, padlock hasp and captive screws, rated NEMA 3R and IP32

  • TypeElectrical Enclosures, Wireways & Covers
  • Wall-mount ready with 20 in height
  • Padlock hasp secures solid cover
  • NEMA 3R and IP32 rated protection
  • Carbon steel body with galvanized finish
  • cUL listed per UL 50 and 50E standards

Enclosure for wall-mounted electrical systems

The HOFFMAN A20R166HCR is a carbon steel electrical enclosure rated NEMA Type 3R and IP32 for indoor or sheltered outdoor use. It measures 20 in high, 16 in wide and 6 in deep with a solid hinged cover finished in galvanized gray. A hasp and staple allow padlocking, and captive screws secure the door. The unit is cUL listed per CSA C 22.2 No 94 and UL 50, 50E with file number E27567.

Installers needing lockable access

This enclosure suits electricians and maintenance teams who require a wall-mounted box with a padlock hasp and captive screw closure for safety procedures. It matches NEMA 3R and IEC 60529 IP32 ratings for protection against falling dirt and dripping water. Buyers who need a transparent cover, a different NEMA rating, or a non-metallic body should consider other options.

14/16 gauge carbon steel construction

The enclosure uses 14/16 ga carbon steel with a galvanized finish to resist corrosion in damp environments. An interior panel, catalog number 32FT31, is available separately for component mounting. The collar studs simplify panel installation, and the hinged cover with captive screws speeds up routine access while maintaining the rated ingress protection.

Highlights

  • Wall-mount ready with 20 in height
  • Padlock hasp secures solid cover
  • NEMA 3R and IP32 rated protection
  • Carbon steel body with galvanized finish
  • cUL listed per UL 50 and 50E standards

Specifications

BrandNVENT HOFFMAN
TypeElectrical Enclosures, Wireways & Covers

Questions about this item

Does the 14/16 ga carbon steel body and NEMA 3R rating limit internal heat build-up when the enclosure runs continuously?

The 14/16 ga carbon steel construction with a galvanized gray finish and NEMA 3R rating is designed for outdoor use against rain and sleet; it has no built-in ventilation or cooling provisions, so sustained internal heat depends entirely on the installed equipment and any added venting.

What mounting hardware must I already have to install this 20 in × 16 in × 6 in wall-mount enclosure?

The enclosure uses collar studs for the interior panel (32FT31) and hinged cover captive screws for closure; you must supply the wall fasteners — lag bolts, anchors or screws — appropriate for your mounting surface.

Will my existing 32FT31 interior panel fit the collar studs in this A3M series enclosure?

Yes, the 32FT31 panel is listed as the designated interior panel for this enclosure, so it mounts directly onto the provided collar studs without modification.

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