B-Line Eaton series wireway, 6" height, 72" length, 4" width, G NK wireway, Thru holes, No knockouts, Screw cover, 1, Steel, Plated screws, ANSI 61 g

The Eaton B-Line 6472 G NK is a 6 inch by 4 inch trough running 72 inches long, so it gives you a 6 foot section per piece. That cross section is what you size your conduit stubs and fill calculation around, and the 6 foot length is the run increment you plan to, since longer runs are built by coupling sections end to end.

No knockouts. The G NK designation means no knockouts, so the trough body ships solid and every conduit entry gets field-punched where you want it. That is the right choice when your conduit layout does not line up with a factory punch pattern, but budget shop time for a knockout punch or hole saw on the job.

No. The 6472 G NK is a NEMA 1 enclosure, which is general purpose indoor only. It gives you protection against incidental contact with the enclosed wiring and falling dirt, but no rain, sleet, or washdown protection. For an exterior wall, a loading dock, or anywhere subject to hose-down, you need a NEMA 3R or NEMA 4 raintight wireway instead.

The cover is a removable screw cover held on with plated screws along the length. Back the screws out and the full side of the trough opens up, which is how you lay wire in rather than pulling it. It is reopenable for future adds, but each access means running the screws out and back in, so if you expect frequent changes a hinged-cover trough is faster to work.

It is CSA Certified. For a spec that calls for a listed general purpose wireway on a commercial or institutional job, that is the mark on the label, along with the NEMA 1 enclosure type.

Same 6 by 4 by 72 inch NEMA 1 steel trough either way. The NK version is supplied blank so you punch conduit entries to suit the field layout; a knockout version arrives with a factory pattern of concentric knockouts along the sides and bottom. Pick knockouts when your conduit spacing is regular and you want to save labor, pick NK when the entries are custom or you want no unused openings in the enclosure.

The catalog number is 6472 G NK from Eaton's B-Line series. In that number the 6 and 4 are the trough height and width in inches, 72 is the length, and G NK identifies the no-knockout screw cover version.

Body and cover are 16 gauge steel finished in ANSI 61 gray. That is the standard gray on most switchgear and industrial control enclosures, so a run of this trough matches the panels and disconnects it feeds without repainting. The 16 gauge wall is what lets it hold shape over a 6 foot unsupported-ish span between mounting points.