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Gray powder-coated steel electrical enclosure 12 by 10 by 4 inches with captive screw cover

HOFFMAN

HOFFMAN ASE12X10X4 Captive Screws Electrical Box 12 in H 4 in D

SKU CH-MVZN-2HM3A

Wall-mount carbon-steel enclosure, 12 in high by 10 in wide by 4 in deep, with screw-on solid cover, powder-coat gray finish, NEMA Type 1 and IP30 ratings, cUL listed

  • TypeElectrical Enclosures, Wireways & Covers
  • NEMA Type 1 rating protects indoor equipment from dust and light contact
  • Carbon steel body with powder-coated grey finish resists corrosion in dry environments
  • Captive screw cover stays attached during installation and maintenance
  • cUL listed to UL 50, 50E and CSA C22.2 No 40 for code compliance
  • Pre-drilled mounting holes allow direct wall or surface attachment

NEMA 1 Carbon Steel Enclosure

This NEMA Type 1 rated enclosure is built from carbon steel with a powder-coated gray finish. It measures 12 inches high, 10 inches wide and 4 inches deep. The solid cover uses captive screw latches for secure closure. Mounting holes allow direct wall installation for indoor electrical distribution.

Captive Screw Cover and Mounting Holes

Captive screws keep the cover attached during maintenance so no hardware is lost. The screw-latch design provides a reliable seal that meets the NEMA 1 and IP30 ratings. Pre-drilled mounting holes simplify wall mounting without additional brackets or fabrication.

cUL Listed for Indoor Use

The box carries cUL listing per CSA C22.2 No. 40 and UL 50, 50E standards with file number E27525. It is suited for general indoor wiring junctions and small control assemblies. It is not rated for outdoor exposure, wash-down environments or hazardous locations requiring higher NEMA or IP ratings.

Highlights

  • NEMA Type 1 rating protects indoor equipment from dust and light contact
  • Carbon steel body with powder-coated grey finish resists corrosion in dry environments
  • Captive screw cover stays attached during installation and maintenance
  • cUL listed to UL 50, 50E and CSA C22.2 No 40 for code compliance
  • Pre-drilled mounting holes allow direct wall or surface attachment

Specifications

BrandNVENT HOFFMAN
TypeElectrical Enclosures, Wireways & Covers

Questions about this item

Will the captive screws on the cover need periodic tightening or replacement?

The captive screws are integral to the screw-latch cover design and remain attached; they do not require scheduled replacement under normal indoor use.

What limits continuous operation inside the enclosure first — heat buildup or the NEMA 1 rating?

The NEMA Type 1 and IP30 ratings indicate indoor use only; sustained heat dissipation depends on the installed components and external airflow, not on the enclosure itself.

Does the powder-coated carbon steel generate noticeable heat or noise when mounted all day?

The solid carbon-steel body with powder-coat finish is passive — it produces no noise and adds no heat beyond what the enclosed equipment creates.

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