B-Line Eaton series imperial cable tray and ladder, 4" Height, 26.625" Length, 12" Width, Series 2-5 horizontal bend, Aluminum, 30° Angle, 36" Radius

It turns the tray 30 degrees in the horizontal plane on a 36 inch radius. Overall length of the fitting is 26.625 inches, so you need that much clear run plus your support spacing on either side of the bend. The 36 inch radius is the generous one in the family, chosen when the cable bend radius of large power conductors or fiber will not tolerate a tighter sweep.

Use a horizontal bend like the 4A-12-30HB36 when the tray changes direction side to side while staying at the same elevation, for example routing around a column or a wall. If the tray has to rise or drop, for example over a duct or down a wall, you need a vertical inside or outside elbow instead. This part only turns flat, 30 degrees on a 36 inch radius.

It is aluminum. That makes it the usual pick for damp, coastal, wastewater and chemical exposure where painted steel would rust, and it is far lighter to handle overhead: the fitting weighs 6.591 lb. If you are tying into an existing galvanized steel tray run, keep the material consistent or plan for the dissimilar metal contact at the splice.

The 4A-12-30HB36 is supplied as the bend fitting itself. Splice plates and their bolt hardware for joining it to the adjoining straight sections are ordered separately, as are the hangers, trapeze supports or wall brackets that carry it. Plan a support on each side of the bend when you lay out the run.

Eaton B-Line part number 4A-12-30HB36. The code reads across as 4 inch aluminum rail, 12 inch width, 30 degree horizontal bend, 36 inch radius. Confirm width and radius against your tray schedule before ordering, since the same fitting is built in other widths and radii.

It is CE marked. If your submittal package calls out CE conformity for the tray system, this fitting satisfies that line item.