B-Line Eaton series wireway elbow fitting, Counterclockwise, 90 degree transposition elbows, 12, Steel, ANSI 61 gray painted finish

A transposition elbow turns the wireway run 90 degrees while also rotating the trough orientation, so the cover face carries around the corner instead of ending up on the wrong side. Eaton B-Line model 44-12LE9TCC is the counterclockwise version, so it rotates the run to the left as you follow the wire. If your run needs to turn the other way, you need the clockwise version instead. Get the rotation wrong and the covers won't line up on the downstream section.

It is built for 4 x 4 inch wireway. The fitting measures 4 inches high by 4 inches wide, so it mates to a 4 x 4 trough run. It will not work on 6 x 6 or 8 x 8 wireway.

It is a NEMA 12 fitting, which covers indoor use against falling dirt, circulating dust, lint, and dripping non-corrosive liquids. That suits food plants, machine shops, and general industrial interiors. It is not a NEMA 4 or 4X rating, so it is not intended for hosedown, outdoor, or corrosive duty. The elbow is UL Listed.

Yes, that is exactly what the transposition elbow is for. On a 4 x 4 NEMA 12 run it turns the corner while carrying the hinged or removable cover face through to the next section, so you keep pull access at the bend. Just match the rotation: 44-12LE9TCC is counterclockwise.

The fitting weighs 5.924 lb. At a 4 x 4 size that is a single-hand piece, but factor it in where the elbow lands between hangers on a suspended run, since the corner is usually where the load concentrates.