B-Line Eaton series imperial cable tray and ladder, 4" Height, 25.38" Length, 36" Width, 36" and 6" Tray widths, Series 2-5 right reducer, Aluminum

It is the transition piece that steps a 36 inch wide tray down to a 6 inch wide tray, with the reduction taken on the right side so one side rail stays in line. Model 4A-36-RR06, aluminum, 4 inch rail height, and it measures 25.38 inches along the run. Use it where a main tray run branches or narrows rather than trying to field-cut a straight section.

Yes, if your run is 4 inch rail height and 36 inches wide on the large end and 6 inches on the small end. The 4A-36-RR06 is built to a 4 inch loading depth in aluminum, so it matches 4 inch aluminum tray of the same series. If your tray is 6 inch deep, or steel, this is not the right piece.

On a right reducer the offset is taken on one side so the right-hand rail continues in a straight line and the left rail angles in. A left reducer mirrors that, and a straight (center) reducer splits the offset evenly on both sides. Pick the 4A-36-RR06 when you need the run to stay flush along the right rail, typically where the tray is running tight to a wall or column on that side. Sight the run in the direction of travel before you order, because a right reducer will not substitute for a left.

25.38 inches along the direction of the run. Take that off your straight-section takeoff when you lay out the tray, since the transition itself eats over two feet between the 36 inch tray and the 6 inch tray.

The 4A-36-RR06 is sold as the reducer fitting itself. Splice plates, connection hardware, and hangers are separate line items, so order the matching splices for both the 36 inch and 6 inch ends when you order the fitting.

4.6 lb. Aluminum keeps the fitting light enough for one person to set in place, but a reducer still needs a hanger or support near the transition the same as any other fitting in the run.

Aluminum, which is what this B-Line reducer is made from, is the usual pick where weight matters or the environment is corrosive, and it is non-magnetic. Steel tray is chosen for higher load spans. Keep the material consistent across the run: an aluminum reducer belongs in an aluminum tray system, not spliced mid-run into steel.