B-Line Eaton series imperial cable tray and ladder, 4" Height, 15.000" Length, 36" Width, Series 2-5 vertical outside bend, Aluminum, 90° Angle, 12" R

A vertical outside bend turns the tray run downward over an obstruction or off a wall, with the cables running on the outside of the curve. The Eaton B-Line 4A-36-90VO12 makes that turn at 90 degrees on a 12 inch radius. If you need the run to turn up rather than down over the convex side, you want a vertical inside bend instead, not this fitting.

Aluminum is the material here. It is the usual pick where weight matters or where corrosion resistance is wanted without galvanizing, and this bend weighs 7.6 lb even at 36 inches wide, which is why aluminum runs get handled and hung with less labor. Where a job spec calls out steel or stainless tray, this fitting will not satisfy it, and mixing aluminum fittings into a steel run also raises dissimilar metal and bonding questions.

Yes. The 4A-36-90VO12 vertical outside bend is UL Classified, which is what most institutional and commercial specs ask for when tray is used as an equipment grounding conductor path. That is the only listing carried on the fitting's record.

Order Eaton B-Line 4A-36-90VO12. The number reads out as 4 inch rail height, aluminum, 36 inch width, 90 degree vertical outside bend, 12 inch radius. There is one configuration, so nothing else needs specifying on the fitting itself, though splice plates and hardware to tie it to the adjoining straight sections are ordered separately.