B-Line Eaton series imperial cable tray and ladder - Length 78 in, Width 24 in, Height 4 in - Aluminum

Model 4A-24-12-HX24 is a Series 2-5 horizontal cross built for 24 inch and 12 inch tray widths, so it joins a 24 inch run crossing a 12 inch branch. If both of your intersecting runs are the same width, you need the cross sized for that single width instead.

The fitting is a 24 inch radius cross. Cable with a minimum bend radius of 24 inches or less will make the turn through it; anything requiring a larger radius needs a bigger-radius fitting. Check the cable manufacturer's stated minimum bend radius against that 24 inch figure before you set the layout.

Overall it measures 78 in length, 24 in width, and 4 in height. The 4 in figure is the tray side rail depth, so it mates to 4 inch deep Series 2-5 ladder tray; the 78 in overall covers the full spread of the cross assembly, which you need to account for when you cut the straight sections either side of the intersection.

It's aluminum. That keeps the weight down for overhead work and gives you inherent corrosion resistance without relying on a coating, which is why aluminum tray is common in wet, outdoor, and chemical-exposure areas. If your spec calls for galvanized or stainless steel tray, this fitting is the wrong material.

Yes, this cross carries CSA certification, which is what an inspector on a Canadian project will be looking for on tray fittings.

A horizontal cross is for a true four-way intersection in the same horizontal plane, where one run continues straight through and branches leave both sides. Use tees where only one branch leaves the main run. Stacking two tees back to back at one point leaves you splicing in short filler sections and an awkward cable transition, which is exactly what a single cross like the 4A-24-12-HX24 avoids.