B-Line Eaton series open racks, Steel, #12-24 mounting hardware, Two mount spaces required, 200 lb load capacity, Center mount rack mounted shelf, Si

The SB5962311SSL center mount shelf is rated for 200 lb. That is enough for most switches, UPS bricks, patch panel spares, or a couple of small rack-mount appliances. It is a steel shelf, not a plastic tray, and the shelf itself weighs 9.2 lb.

It mounts with #12-24 hardware, which is the thread B-Line open frame racks are tapped for. If your rack rails are tapped 10-32 or use square-hole cage nuts instead, the supplied #12-24 screws will not thread in and you will need hardware matching your rails.

Eleven inches of depth handles network gear, media converters, small UPS units and desktop-style boxes. A full-depth 1U or 2U server is typically 20 to 30 in deep and will overhang badly on an 11 in shelf. For that equipment use a deeper cantilever or four-post shelf, or rail-mount the server directly.

A center mount shelf, like the SB5962311SSL, bolts to the rails with the shelf surface set back from the front plane so the load sits centered over the rack. That balances weight on a two-post open frame rack, which has no rear support. A flush-mount shelf puts the deck at the front rail and cantilevers the whole load forward, which loads the rails in bending and is better suited to wall-mount or four-post frames.

Yes, #12-24 mounting hardware is included with the shelf, so no separate rack screw pack is needed for a B-Line rack tapped #12-24. Order one shelf per two rack units you intend to fill; each unit is a single shelf, part number SB5962311SSL.

The shelf comes in a silver powder coat, which is B-Line's standard finish on their open frame rack line, so it matches silver B-Line racks and accessories. It will not match black racks or black powder coat accessories. Powder coat over steel also takes the scuffs of a busy MDF better than paint.