Blackburn FB4G24 FLEXIBLE BRAID 1228KCMIL, 24IN LONG

The FB4G24 is a flat, flexible tin-plated copper braid connector with a two-hole terminal at each end. It bonds or grounds between two points that move, vibrate, or shift relative to each other, such as switchgear doors, transformer cases, bus connections, and equipment frames, where a solid conductor would fatigue and crack. The braid construction lets the strap flex while still carrying fault and bonding current.

Two-hole. Each end is a 2-hole terminal pad, so the strap gets a bolted connection at both ends that resists rotation. Two-hole pads are what most utility and industrial bonding specs call for on equipment grounding, because a single bolt can loosen and let the pad swing off the contact face. Plan on two bolts, nuts, and washers per end; hardware is not part of the strap.

The conductor is tin-plated copper. The plating slows oxidation on the strands and on the terminal faces, which matters on a braid because there is far more exposed surface than on a solid bar, and a corroded contact face raises resistance right where the bond has to be lowest. Tin plating also makes the pads compatible with aluminum bus and equipment pads without the galvanic problem you get bolting bare copper to aluminum.

No. The 24 inch length is fixed between two factory-formed 2-hole pads, and cutting it destroys one of the terminations. If you need a shorter jumper, order a braid built at the length you need rather than modifying this one. Field-shortening also voids the integrity of the crimped pad, which is the part carrying the bolted connection.

Blackburn FB4G24. Order it by that MPN. Blackburn braid part numbers encode the length at the end, so the FB4G24 is the 24 inch version of that flat braid family.

The FB4G24 is sold each, one braid per unit. If you are bonding both sides of a switchgear lineup or a row of enclosure doors, count your connection points and order that quantity.