B-Line Eaton series imperial cable tray and ladder, 6" Height, 39" Length, 24" Width, 24" and 6" Tray widths, Series 2-5 horizontal reducing tee, Alum

It joins a 24 inch wide run to a 6 inch wide branch. That is the point of a reducing tee: the main run stays 24 inches and the tee takes the drop down to a 6 inch tray without a separate reducer fitting. Overall the fitting measures 39 inches long and 24 inches wide.

The tee is a 24 inch radius fitting. The radius sets the minimum bend the conductors see as they turn into the branch, so if your cable's minimum bending radius is at or under 24 inches you are fine. Large power feeders with a bigger bend spec need a larger radius fitting.

Aluminum. That keeps it light for overhead work, the fitting weighs 33.5 lb, and it suits the same corrosion exposure as an aluminum tray run. Don't mix it into a galvanized steel run without accounting for dissimilar metal contact and matching rail geometry.

It carries CSA certification, which is what a Canadian inspector will look for on cable tray fittings.

Use the reducing tee when the branch leaves the main run at a smaller width in the same horizontal plane, here 24 inch main to 6 inch branch. It does the reduction and the branch in one 39 inch fitting, which saves a joint and the extra splice hardware a separate reducer would need. If your branch is the same 24 inch width as the run, you want a straight horizontal tee instead, and if the branch rises or drops elevation you need a vertical fitting, not this one.

33.5 lb. It's a two-man lift into hangers once you add trapeze hardware, and the 39 inch length means you want support on both sides of the tee rather than hanging it off the run.