B-Line Eaton series open racks, Full-length door compatible with RCM, 150 lb, Steel, Flat black powder coat, 79 mounting spaces

It covers 79 mounting spaces, so it suits a 79-space open frame rack rather than a standard 45U enclosure. Count the usable spaces on your existing frame before ordering; a shorter rack will leave the door overhanging.

Yes. The full-length door is built to mount on B-Line RCM series open frame racks. It is not a universal door for any manufacturer's frame, so if your rack is another brand or an older B-Line series, it is the wrong part.

No. SB708237912FB is the full-length door only, sized for a 79-space B-Line RCM open frame rack. The rack, its base, and any panels or cable management are separate line items.

Rated at 150 lb load capacity. That figure covers the door assembly and its hinges, not the equipment load of the rack itself, so cable managers or accessories hung off the door need to stay inside that number.

UL Listed, which is what most electrical inspectors and institutional spec writers look for on rack hardware going into an occupied building. It is steel construction with a flat black powder coat.

A door on an open rack gets you a physical barrier over the equipment face while keeping the open two-post frame you already have, which is cheaper and lighter than swapping to a fully enclosed cabinet and keeps rear cable access wide open. If you need four-sided containment, side panels, or airflow control, a cabinet is the right move instead. This one adds a 79-space steel door to an RCM frame, nothing more.

The finish is flat black powder coat, the standard non-gloss black used across B-Line open frame rack hardware, so it reads the same as existing black B-Line frames. If your installed racks are grey or white, this one will stand out.