B-Line Eaton series wiring trough, 6" height, 36" length, 6" width, GRT wiring trough, Embossed thru holes, 11 bottom knockouts, Screw cover, 3R, Ste

The 6636 GRT trough carries a NEMA 3R rating, so it is built for outdoor use where falling rain, sleet and ice are the concern. It is not a washdown or hosedown enclosure, and it is not sealed against dust or submersion. The screw cover seats on a flange and is held with plated screws, which is what gives it the rain-shedding closure. For indoor mechanical rooms it works equally well.

It's a 6 x 6 cross section, 36 inches long, which is the standard 6-inch square gutter size. Sizing your conductors is done off that cross section per code wire-fill rules. The body has 11 bottom knockouts already punched, plus embossed thru holes for mounting, so much of your conduit entry is prepped without additional hole work.

A screw cover like the 6636 GRT is the common choice for feeder and junction runs that get opened rarely: the cover sits on a flange and is secured with plated screws all the way around, which is what holds the 3R rating. If you expect frequent access for terminations or troubleshooting, a hinged cover gutter saves you handling loose screws and a loose cover on a ladder. For pull and splice points behind a panel board, screw cover is standard.

It's CSA Certified, so it can be specified on Canadian projects as well as US work. The rating on the enclosure itself is NEMA 3R.

16 gauge steel, finished in ANSI 61 gray, which is the standard gray that matches most switchgear and panel enclosures, so a run of trough above a lineup won't look mismatched. 16 gauge is the usual weight for a 6 x 6 gutter and keeps the body rigid over the full 36-inch span.

Gutter is normally run in sections and coupled end to end, and the 36-inch length is one of the standard modules for that. Connectors and closing plates for the ends are separate items, not supplied with the body, so add those to your order along with any grounding hardware and bushings for the knockout entries.