Blackburn FB2XD24 FLEX BRAID 9/16 2H 1.25 X 24 INCH

The pads are drilled 9/16 inch, which takes a 1/2 inch bolt or stud with normal clearance. Two holes per pad, so you get a non-rotating connection at each end. Check the hole spacing on your existing NEMA pad before you order; the 9/16 inch drilling is what determines the hardware, not the pad itself.

Overall length is 24 inches, with a 1.25 inch braid width. The 24 inch length gives real slack for expansion-joint movement or a long reach between a moving assembly and a fixed ground bus, so measure the travel your joint sees, not just the static gap, before settling on the length.

It carries UL file E3060 and CSA file LR29625. That covers the inspection question on most commercial and industrial grounding work where the AHJ wants a listed bonding jumper rather than a field-fabricated one.

The FB2XD24 is a flat, flexible tin-plated copper braid bonding jumper with a two-hole terminal pad at each end. It carries bonding or grounding current across a joint that has to move or flex, such as expansion joints in busway and cable tray runs, equipment that vibrates, hinged enclosure doors and panels, and transformer or switchgear connections where a rigid conductor would fatigue and crack. The braid construction lets the connection move without breaking continuity.

The FB2XD24 braid is tin-plated copper. The tin plating slows oxidation at the braid strands and at the bolted pad face, which keeps contact resistance stable over time and is the usual choice for outdoor, damp, or corrosive locations and for landing on aluminum or galvanized surfaces where bare copper would be a problem. Bare copper is fine in a dry indoor panel; tinned is what you want anywhere weather or dissimilar metals are in play.

Use flat braid wherever the connection moves. Round stranded cable will work across a static bond, but at an expansion joint, a vibrating motor frame, or a hinged door the repeated bending work-hardens the strands and they break, usually inside the lug where you cannot see it. The FB2XD24 is a flat, flexible braid built for that duty, with bolt-on two-hole pads at each end so the termination is mechanical and there is nothing to crimp in the field. For a bond that never moves, plain cable and compression lugs are the cheaper way to go.

Country of origin is the United States, which is what a federal, state, or institutional buyer working to a domestic-content requirement needs on the submittal. Order it by the manufacturer part number FB2XD24.