B-Line B52SH-240YZN Eaton series strut channel, .81" channel height, 240" channel length, 1.62" channel width, Steel, 12 Gauge, SH hole pattern, B52 channel type, Yellow zinc chromate

The B52SH is a shallow (half-height) strut channel measuring 1.62 inches wide by .81 inches high, so the open face is the standard 1-5/8 inch strut opening that common strut nuts, clamps and fittings are built around. The half-height profile only changes the depth of the back, not the channel opening, so fittings that seat in the lips of standard 1-5/8 inch channel work the same way here.

SH is the slotted-hole back pattern: the channel back is punched with slots along its length rather than shipped solid. That lets you bolt the strut to structure, deck or wall anywhere along the run without drilling, and gives you adjustment in the slot direction when you are lining up a rack or a pipe run. If you want an unpunched back for a cleaner look or full section strength, you want a solid-back B52 instead.

B52 is the 1.62 by .81 inch half-height section. It is the lighter-duty choice, used for wall-mounted runs of small conduit, low-voltage tray, equipment mounting and short unsupported spans where the load is modest. When you are trapezing heavier pipe, spanning long distances between supports, or building a freestanding rack, step up to the full 1-5/8 by 1-5/8 inch section, which has roughly twice the depth and far more beam strength in the vertical axis.

Yellow zinc chromate is an indoor, dry-location finish. It gives good corrosion protection in conditioned or sheltered spaces, but it is not a hot-dip galvanized or stainless finish and it will not hold up to weather exposure, washdown, or corrosive process areas. For exterior runs, parking structures, or wet mechanical rooms, specify a hot-dip galvanized or stainless channel. Also note that any field cut through the strut leaves bare steel at the end that should be touched up.

It is formed from 12 gauge steel, which is the standard structural thickness for B-Line strut channel and the gauge most commercial specs call out. Lighter 14 and 16 gauge strut exists for signage and light equipment mounting, so if a drawing specifies 12 gauge, this section meets that callout.

The Eaton B-Line part number is B52SH-240YZN. Read the code back like this: B52 is the half-height channel section, SH is the slotted back hole pattern, 240 is the 240 inch stick length, and YZN is the yellow zinc chromate finish. If you match those four elements you get identical material to what is already installed.

No. B52SH-240YZN is bare channel only, sold as a 240 inch length. Strut nuts, spring nuts, end caps, pipe clamps, post bases, and the anchors or bolts that fasten the channel to structure are all ordered separately. Match the fittings to the 1-5/8 inch channel opening and choose a zinc-plated fitting finish if you want the hardware to match the yellow zinc channel.