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Gray carbon-steel wall-mount enclosure, hinged solid cover, screw clamps, ANSI 61 powder coat, 4x4x3.5 in

Wiegmann

Wiegmann B-CH 4x4x3.5 in Enclosure Gray ANSI 61

SKU CH-E377-THV2F

Wall-mount carbon-steel enclosure, NEMA 12/13 rated, ANSI 61 grey powder coat, 4×4×3.5 in with hinged screw-down cover and poured gasket

  • TypeBus Plugs
  • MaterialHAWA
  • NEMA 12 and 13 rated for dust and water protection
  • ANSI 61 gray powder coat resists corrosion
  • 14/16 gauge carbon steel withstands impact
  • Hinged cover with screw-down clamps enables fast access
  • cULus and CSA certified for code compliance

Compact Carbon-Steel Enclosure

The Wiegmann B-CH enclosure is a 4 by 4 inch carbon-steel box with a 3.5 inch depth, finished in ANSI 61 gray powder coat. It carries NEMA 12 and 13 ratings and is CSA certified, cULus and UL listed for industrial electrical protection. Wall-mounting feet and a seamless poured polyurethane gasket are integrated.

Upgrade From Unrated Junction Boxes

This unit replaces basic unsealed junction boxes when a project requires NEMA 12 and 13 ingress protection and third-party safety listings. The jump is worth it when dust, dripping liquids or oil exposure would compromise an open or gasketless enclosure in the same footprint.

Sustained Environmental Performance

The 14 to 16 gauge steel body and clamped solid cover maintain a continuous seal around the 3.38 inch usable depth during prolonged exposure to contaminants. Powder-coated surfaces resist corrosion over long service periods without degrading the gasket compression or mounting integrity.

Highlights

  • NEMA 12 and 13 rated for dust and water protection
  • ANSI 61 gray powder coat resists corrosion
  • 14/16 gauge carbon steel withstands impact
  • Hinged cover with screw-down clamps enables fast access
  • cULus and CSA certified for code compliance

Specifications

BrandWIEGMANN
TypeBus Plugs
MaterialHAWA

Questions about this item

What wall-mount hardware fits the external mounting feet on this 4 in by 4 in enclosure?

The enclosure has external mounting feet for wall mounting; use fasteners suited to the mounting surface and the feet hole pattern.

Which step is often missed when securing the hinged cover with screwdown clamps?

Tighten each clamp evenly so the poured-in-place polyurethane gasket compresses uniformly and maintains the NEMA 12 and 13 seal.

When should the poured-in-place polyurethane gasket be inspected or replaced?

Check the gasket during routine enclosure inspections; replace it if you see cracking, compression set, or any damage that could compromise the NEMA 12 and 13 rating.

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