Blackburn FBXD12-1 FLEX BRAID 9/16H .25 X 1.25 X 12 IN

The FBXD12-1 is a flat, flexible tin-plated copper braid jumper with a single bolt hole at each end. It bonds two points that need electrical continuity but also need to move or vibrate independently, so it is used across expansion joints, on transformer and switchgear doors, motor and generator bases, enclosure covers, and equipment grounding runs where a rigid conductor would fatigue and crack.

Each end is punched with a 9/16 inch hole, which clears a 1/2 inch bolt or stud with room to spare. If your ground pad or bus is drilled for a smaller fastener, use a flat washer under the head so the braid terminal is not pulled through the opening.

It carries UL file E3060 and CSA LR29625. That covers both sides of the border for a facility standardizing bonding hardware across US and Canadian sites.

Overall length is 12 inches, and the braid body measures .25 by 1.25 inches. Work out your span with the braid relaxed, not pulled tight: a bonding jumper across a moving joint needs slack so the movement is taken by the braid and not by the bolted terminals.

Two reasons. The tin plating on the FBXD12-1 slows oxidation at the bolted terminal, so contact resistance stays low over time and the strap does not green up on a damp or outdoor pad. And the braid is made of fine stranded copper rather than solid bar, so it flexes with vibration and thermal movement instead of work-hardening and fracturing at the bolt.

Country of origin on the FBXD12-1 is the United States, which is what a government, utility, or federally funded project needs on record for domestic-content documentation.

No. It ships as the braid jumper alone, with a 9/16 inch hole at each end. Supply your own hardware sized to the ground pad or stud, along with a flat washer and a lock washer or serrated nut so the bolted joint does not loosen under the vibration the braid is there to absorb.

It is sold each, so quantity ordered equals straps received. Bonding jobs usually take them in pairs or sets (one per hinge side, one per joint), so count your openings or joints before ordering.