B-Line Eaton series wireway nipple section, Feed through, Wireway nipple section, 4X rated, Stainless steel, Brushed finish

It is a 4 x 4 wireway nipple, with a 4 inch height and 4 inch width, so it mates to 4 x 4 wireway trough. The body itself is only .938 inch deep, which is why it is used as a short feed-through connection between two boxes or trough runs rather than as a length of raceway.

Yes. The 44-4XSFN1 is NEMA 4X rated, which covers wet locations, hosedown and corrosive environments, and it is built in stainless steel with a brushed finish. That combination is what you want on food processing, car wash, wastewater and coastal exterior work. The whole assembly is only sealed to 4X if the trough and covers it joins are also 4X rated.

A feed through nipple is the short connector that carries conductors from one enclosure or trough section straight into the next. The 44-4XSFN1 is the feed through style, so it is a pass-through only, not a fitting for changing direction. For a turn you need an elbow section, and for a branch a tee or cross fitting in the same 4 x 4 size and 4X rating.

Not where corrosion is the reason for the 4X rating. Painted or galvanized steel wireway is typically NEMA 1 or NEMA 3R and will rust out in washdown, chemical or salt air service. The 44-4XSFN1 is stainless steel with a NEMA 4X rating, and mixing a lower-rated fitting into the run drops the whole assembly to that lower rating.

Order Eaton B-Line 44-4XSFN1. That single number covers the 4 x 4 feed through nipple section in stainless steel, brushed finish, NEMA 4X. There are no finish or size options to specify on it.

It weighs 1.348 lb, light enough to hang off the sections it joins during assembly. At .938 inch deep it is a short coupling piece, so the support you plan for is on the trough sections either side of it, not on the nipple itself.