Blackburn FBE4H235A1-30 XFLEX BRAID 4 9/16H 3/8X3.75X 30 IN

It is a 4-hole terminal pad arrangement with 9/16 inch holes, and the pad/braid figures given are 3/8 x 3.75 with a 30 inch overall length. Match the 9/16 inch hole to your bolt size (commonly a 1/2 inch bolt through a 9/16 inch clearance hole) and check your existing pad drilling before ordering, since a 4-hole NEMA pattern will not land on a 2-hole pad.

It is a flat, extra-flexible braided copper connector used to make a current-carrying connection between two bolted points that move relative to each other, such as switchgear contacts, disconnect switches, transformer terminals, bus bar expansion joints, and grounding jumpers. The conductor is tin-plated copper in a flat braid form, so it flexes and absorbs vibration or thermal movement where a solid bar or rigid bus cannot.

It is sold each, one braid per unit. Bolts, washers, and Belleville hardware for the terminal pads are not part of the item, so add those to your order if the existing joint hardware is not being reused.

A flat braid like this one handles repeated movement and vibration better than a stranded cable jumper of the same rating, because the many fine strands in a flat braid flex across a wide, shallow section instead of bending as a round bundle. Use the braid where the joint moves (switch blades, expansion joints, equipment on isolators). Where the run is static and simply needs to carry current point to point, a compression lug and cable is the simpler build. Note this braid comes with a fixed 4-hole pad arrangement, so it has to land on drilled pads, not on a lug stud.

The conductor is tin-plated copper. The tin plating slows oxidation at the braid surface and at the bolted interface, which matters outdoors, in substations, and in damp or corrosive plant air where bare copper builds resistive oxide. It also mates cleanly with aluminum or plated hardware without the galvanic issue bare copper can create.