B-Line B494-30ZN Eaton series strut fittings and accessories, 11.25" Height, 30" L, 1.62" W, 8.85lbs, Steel, Braced single bracket, Load capacity 1600 lbs, Bottom brace: B42 on B494-24 and smaller and B22 on B494 and larger, Electro-plated zinc

The B494-30ZN braced single bracket is rated for a 1600 lb load capacity. That rating is for the bracket itself, so the strut it bolts to, the fasteners, and the structure behind it all have to carry the same load before you can count on it. It is a steel bracket with a 30 inch arm, so keep the load placed where the drawing puts it rather than hung out past the end.

On the B494-30ZN the bottom brace is B22 channel. Eaton splits it by size: B42 is used on the B494-24 and smaller, and B22 on the B494 and larger. Since the 30 inch version sits above that break, plan on B22 for the diagonal.

Height is 11.25 inches, length/depth is 30 inches, and width is 1.62 inches. It weighs 8.85 lb. The 1.62 inch width is what lets it sit in line with standard 1-5/8 inch strut, and the 11.25 inch height is the rise you need clear above the wall attachment point for the brace.

The finish is electro-plated zinc, which is a light coating meant for dry indoor and protected service. For exterior runs, wash-down areas, or anything corrosive, specify a hot dip galvanized or stainless version of the bracket instead, since electro-plate will not hold up there.

A plain bracket carries the load on the arm alone and relies entirely on the bolted connection at the wall to resist the overturning moment. The B494-30ZN is a braced single bracket, meaning it adds a diagonal of channel from the outer end back down to the wall, which is what lets a 30 inch arm be rated at 1600 lbs. Use the braced type for long projections and heavy pipe, conduit, or cable tray runs; an unbraced bracket is fine for short projections and light loads.

Order the B494-30ZN as the bracket itself. The bottom brace is called out as B22 channel for this size, and the anchors or bolts into the wall or structure are selected for your substrate, so budget those as separate line items when you take off the job.

B494-30ZN is the manufacturer part number: B494 series braced single bracket, 30 inch, ZN for electro-plated zinc. The 24 inch and shorter members of the same series run under B494-24 and below, which is also where the bottom brace changes to B42 channel.