B-Line Eaton series imperial cable tray and ladder, 4" Height, 17.598" Length, 30" Width, Series 2-5 vertical outside bend, Aluminum, 30° Angle, 24" R

A vertical outside bend carries the tray run up or down over an obstruction where the cables bend away from the tray bottom, so the fitting opens outward. The Eaton B-Line 4A-30-30VO24 is a 30 degree vertical outside bend with a 24 inch radius. If your run has to drop or rise with the cables bending toward the tray bottom instead, you want the vertical inside bend version of the same angle and radius, not this one. Direction is not field reversible on a bend fitting.

Allow 17.598 inches of length for the fitting itself, measured along the run, with the bend swept on a 24 inch radius through 30 degrees. Lay that out before you cut your straight sections, because the radius is fixed and the fitting cannot be shortened.

Aluminum construction, and it's CSA certified. Aluminum is the usual pick where weight matters or where the environment would attack plain steel. The fitting weighs 5.316 lb, light enough for one person to hold up while a second lands the splice plates.

The 4A-30-30VO24 is the bend fitting itself. Splice plates and their hardware are ordered separately, and you need a set at each end of the fitting to tie it into the adjoining straight sections. Order splice plates matched to the same Series 2-5 aluminum family and 4 inch rail height.

Order Eaton B-Line part number 4A-30-30VO24. Read it as: 4 inch rail aluminum, 30 inch width, 30 degree vertical outside bend, 24 inch radius. That single number pins down all four variables, so there is nothing further to specify.