B-Line Eaton series imperial cable tray and ladder, 6" Height, 26.692" Length, 12" Width, Series 2-5 vertical inside bend, Aluminum, 30° Angle, 36" Ra

A vertical inside bend carries the tray run up or down at an angle while the cable stays on the inside of the curve, like turning up a wall from a horizontal run. The B-Line 6A-12-30VI36 is a Series 2-5 vertical inside bend at a 30 degree angle with a 36 inch radius, built in aluminum. If your run turns the other way, with the cable riding the outside of the curve, you need a vertical outside bend instead, not this fitting.

Allow for the fitting's own length: the 30 degree, 36 inch radius bend measures 26.692 inches along its length. That is the dimension to lay out between your last straight section and the point the run changes elevation. The 36 inch radius is the bend radius of the curve itself, which is what protects the cable from being pulled around too tight a turn.

Aluminum. That keeps the weight down, 6.5 lb for this fitting, and aluminum tray is commonly run in damp and corrosive areas where plain steel would need galvanizing. If your spec calls for steel or stainless tray, this fitting is the wrong material and the straight sections would not match.

Order Eaton B-Line 6A-12-30VI36. The number reads out as the fitting spec: 6 inch rail height, aluminum, 12 inch width, 30 degree vertical inside bend, 36 inch radius. Quoting that MPN to a distributor gets you the exact fitting rather than the outside-bend or horizontal-bend version.

The 6A-12-30VI36 is the bend fitting itself. Splice plates to join it to the adjoining straight sections and the hangers or trapeze supports to carry it are separate line items, so add those to the order for each end of the fitting.