B-Line Eaton series open racks, Steel, Telco gray powder coat, 17" depth, Closed end spacer box

17 inches height, 17 inches depth, and 3 inches width. That 3 inch width is the amount of horizontal space the spacer adds alongside the rack, so allow for it when you lay out aisle spacing or a row of ganged racks.

Yes. The spacer box is built at 17 inch depth, which is what pairs it with 17 inch deep Eaton B-Line series open frame racks. If your rack frame is a different depth, the sides won't line up flush, so match the spacer depth to the rack depth.

It is finished in Telco gray powder coat, the standard finish used across the Eaton B-Line series open frame rack line, so the spacer box blends into an existing Telco gray rack lineup rather than standing out. Powder coat over steel also holds up to handling in a telecom or MDF room.

The closed end version, like the B-Line SB5615317CLTG, encloses the end of the spacer so cable stays contained and the side of the rack row is finished off. An open spacer leaves that end accessible, which you'd choose when the spacer sits between two racks in a continuous row and cable has to pass through. Pick the closed end for the last rack in a lineup or a standalone rack.

Order by the model number SB5615317CLTG. That single part covers the 17 inch depth, 17 inch height, 3 inch wide closed end spacer box in Telco gray. There are no separate finish or size options to specify.

It weighs 10.9 lb, light enough for one tech to hold in place while starting the fasteners. It's a steel part, so plan on a helper only if you're working overhead on a tall rack.

It is a passive steel mounting accessory for open frame racks, with no electrical function of its own, so no certification applies to it. Grounding and bonding requirements in your room are handled by the rack grounding kit and the bonding conductor, not by the spacer box.