B-Line SB5767090YZ Eaton series open frame racks, Steel, Yellow zinc, 12-24 panel mounting holes, 48 mounting spaces, Top angle style, Seiemic zone 4, network bay open duct rack, 11 gauge

The SB5767090YZ gives you 48 mounting spaces on a 90 inch tall frame, so you can populate a full bay of switches, patch panels and rack-mount servers in one upright. Overall width is 23 inches, which is the standard footprint for a 19 inch EIA equipment rack plus the rail flanges.

The rails are drilled with 12-24 panel mounting holes, so you mount equipment with 12-24 rack screws, not cage nuts and not 10-32. If your existing gear was mounted on 10-32 rails, budget for new screws when you cut over.

Yes. The SB5767090YZ is built as a seismic zone 4 network bay rack, fabricated from 11 gauge steel rather than the lighter stock used on standard relay racks. It is also UL Listed. Seismic performance depends on anchoring it to the slab per the engineer's detail, so the floor anchors and any overhead bracing are specified separately from the rack.

Plan on two people. The frame weighs 121 lb and stands 90 inches tall, so it is a two-man lift to stand it up and hold it plumb while the base is anchored. Clear the ceiling height and any overhead ladder rack before you tip it upright.

The SB5767090YZ is the open frame bay itself, with 48 mounting spaces of 12-24 rails. Vertical cable managers, horizontal managers, shelves, power strips and floor anchors are ordered separately. On a network bay with this many spaces, size the vertical ducts before you set the rack, since they bolt to the sides and add to the 23 inch frame width.

An open frame bay like the SB5767090YZ is the right call in a secured, dedicated telecom or MDF room where you want free airflow and fast access to patching from all four sides. Go with an enclosed cabinet instead if the equipment sits in a shared space, a classroom, or anywhere physical security or dust control matters, since an open frame offers no lockable door.

Yellow zinc is a plated finish over steel that resists corrosion in conditioned indoor spaces, which is what a telecom or MDF room is. If the owner wants everything in matching black for an exposed or client-facing space, look at a painted equipment rack instead, since this one ships in the plated finish only.

Top angle refers to the angle bracket across the head of the frame. It stiffens the uprights and gives you a landing point for overhead cable runway or ladder rack tie-in above the bay, which is how these network bays are usually braced in a room with a cable tray grid.