B-Line Eaton series imperial cable tray and ladder, 4" height, 61.31" length, 42" width, Series 2-5 vertical inside bend, 90°, 36" radius, Aluminum

Plan for the full swept envelope: the bend is a 90 degree turn on a 36 inch radius and the fitting measures 61.31 inches along its length. On a vertical elevation change that means roughly three feet of vertical rise plus the tray depth, so keep structure, duct, and pipe clear of that arc before you hang it.

A vertical inside bend turns the tray so the cables run along the inside of the curve, which is what you use when the run drops down from a ceiling-level elevation or rises off a lower elevation with the load on the concave side. An outside bend curves the other way, with the cables over the convex face. The 4A-42-90VI36 is the inside version at 90 degrees. Pick the wrong one and the fitting will not line up with the direction your run changes elevation.

It is aluminum. That keeps the weight down for a fitting this size (19 lb) and gives better corrosion resistance than plain carbon steel for damp or chemically exposed plants. Match the material to the rest of your run; mixing aluminum fittings into a steel tray system creates dissimilar-metal contact at every splice.

Order Eaton B-Line 4A-42-90VI36. The designation reads out as 4 inch deep aluminum, 42 inch width, 90 degree vertical inside bend, 36 inch radius. That is the exact manufacturer part number for quoting and for the submittal.

CE marking is listed for this fitting. If your submittal package needs other agency listings, they are specified at the system level for the Series 2-5 tray run rather than on the individual bend.