B-Line Eaton series wiring trough, 4" height, 12" length, 4" width, 4XSWT wiring trough, Welded external mounting feet, Hinged cover, 4X, 304 stainle

The 4412-4XSWT is a 4 x 4 x 12 inch trough: 4 inch height, 4 inch width, 12 inch length. That 4 x 4 cross section is the common size for splicing and pull-box work feeding smaller enclosures, and the 12 inch length keeps it short enough to mount between two closely spaced boxes. It weighs 6.418 lb.

It is a NEMA 4X trough in 304 stainless steel with a seamless poured in-place gasket, so it is built for wet, hosedown and corrosive locations, including outdoor use. The 4X rating is what separates it from a plain indoor 1 trough, and the stainless body handles food plant, marine and chemical exposure where painted steel would rust out.

It has welded external mounting feet, so it stands off the mounting surface and fastens through the feet instead of through the trough body. No holes get drilled in the enclosure, which is what keeps the 4X rating intact after installation. Fasteners suited to your wall are supplied by the installer.

The cover is hinged, held by semi-hinges and screw clamps with stainless steel hardware. You back off the clamps and swing the cover rather than lifting a loose cover off, which matters when the trough is mounted overhead and you are working alone. A driver for the clamps is all that's needed.

It ships as a blank stainless trough, so conduit entries are field punched where your runs land. Punch from the outside and use wet-location hub fittings or sealing locknuts with gaskets at every opening, otherwise the 4X rating is lost at the penetration. The body is 14 gauge, heavy enough to hold thread and support a hub without an oversize knockout seal.

It carries CSA C22.2 certification, so it's acceptable for Canadian installations as well as US work where the specifier calls for a CSA certified wireway.

Order Eaton B-Line 4412-4XSWT. The number reads as the size and type: 44 for the 4 x 4 cross section, 12 for the length, 4XSWT for the NEMA 4X stainless wiring trough family.

Use a NEMA 1 painted wireway only in dry indoor electrical rooms; it is cheaper and lighter, but it has no gasket and will corrode in damp or washdown space. The 4412-4XSWT is the choice when the trough sees hosedown, outdoor weather, or corrosives, because it pairs a seamless poured in-place gasket with a 304 stainless body and stainless cover hardware so nothing in the assembly rusts.

It's 14 gauge 304 stainless, which is a structural gauge rather than a light sheet metal box. That thickness is what lets the welded feet carry the trough plus terminating conduit without the sidewalls oil-canning where hubs land.

The exterior is a #4 brushed stainless finish, the standard directional satin grain used on food service and lab equipment. It reads the same as a #4 brushed panel or enclosure sitting next to it, which is why it is specified where the whole wall of gear is stainless.