Blackburn FB2D6 FLEXIBLE BRAID 153.6KCMIL, 6IN LONG

The FB2D6 is a flat, flexible tin-plated copper braid jumper with a two-hole terminal pad at each end. It bonds across a joint that moves or has to come apart, expansion joints in busway or structural steel, transformer or generator pads that vibrate, hinged switchgear doors, and equipment ground continuity where a solid conductor would fatigue and break. The braid is 153.6 KCMIL and 6 inches long.

It carries UL file E3060 and CSA LR29625. Those file numbers are what an inspector or a spec writer wants to see on a bonding jumper submittal, and they are printed as the product's standards reference.

The cable length is given as 6 inches. That is the braid length figure Blackburn publishes for the FB2D6, so plan your joint gap with slack in mind, a bonding jumper should be installed with some bow in it so the braid takes the movement rather than pulling on the pads.

Tin plating over the copper is exactly why this style is chosen for mixed-metal bolted connections. The tin keeps bare copper off the aluminum or galvanized surface, which is what drives galvanic corrosion at a bonding pad. Clean the mating surface, use a listed joint compound where the spec calls for it, and torque to the hardware manufacturer's value.

No. It is sold as the braid with two-hole terminal pads only, one each, so the bolts, nuts, flat and Belleville washers, and any joint compound are a separate line on your order. Match the bolt diameter to the pad hole size on the unit you receive before you order hardware.

Two reasons. A flat braid flexes repeatedly without work-hardening, so it survives vibration and expansion cycling that will eventually crack a stranded cable at the lug barrel. And the flat profile lets it sit tight against a busbar or an enclosure face where a round cable with crimped lugs needs bend radius. Where there is no movement in the joint, an ordinary stranded conductor with compression lugs is the cheaper and perfectly adequate choice.

Country of origin is the United States, which is the line item institutional and government buyers need for Buy American or BABA documentation. Pair it with the UL E3060 and CSA LR29625 file references on your submittal.

153.6 KCMIL sits between 2/0 (133.1 KCMIL) and 3/0 (167.8 KCMIL) in cross-sectional area, so the FB2D6 braid is commonly specified where a 2/0 bonding jumper is called for. Check the ampacity or sizing table your engineer used rather than substituting on area alone.

Individually, one braid per unit. If you are bonding both sides of an expansion joint or standardizing several switchgear doors across a facility, count the openings and order that quantity, the part number covers a single 6 inch, 153.6 KCMIL braid.