Blackburn FBC36-1 FLEXIBLE BRAID 48 KCMIL, 36IN LONG

The FBC36-1 is a flat, flexible tin-plated copper braid jumper, 48 KCMIL and 36 inches long, with a one-hole terminal at each end. It bonds two points that need an electrical connection but also need to move or flex relative to each other, such as expansion joints, hinged enclosure doors and covers, transformer and switchgear connections, and equipment subject to vibration. Because the conductor is braid rather than solid or stranded cable, it takes repeated movement without work-hardening the way a rigid conductor would.

Cable length is 36 inches. The terminals are factory attached at both ends, so this is a fixed-length assembly and cutting it to suit would remove a lug. If your span is shorter, order a shorter braid rather than trimming this one, and leave slack in the run so the braid can flex instead of pulling on the bolted connections.

One hole per end. A single-hole pad lets the braid pivot on the bolt, which is what you want where the two connection points shift or where a two-hole pad will not fit the available landing area. If your spec calls for a two-hole NEMA pad to prevent rotation, a 1-hole braid is not the right part and you need a 2-hole version instead.

The tin plating on the FBC36-1 slows corrosion on the copper strands and is the usual choice where the braid lands on aluminum or galvanized hardware, or where the connection sits in a damp or outdoor enclosure. Bare copper against aluminum sets up galvanic corrosion at the joint; tin plating is what keeps that connection stable over time.

That is exactly the case for braid. A stranded or solid ground conductor bolted across a joint that moves will eventually fatigue and crack at the lug; flat braid distributes the movement across many fine strands. Use a standard grounding conductor for static runs, and a braid like the FBC36-1 (48 KCMIL, 36 inches) where vibration, thermal expansion, or a hinge keeps the two points moving.

The FBC36-1 is the braid assembly with a 1-hole terminal at each end. Bolts, nuts, and washers sized to your landing pads are a separate purchase, so plan on picking up the bolting hardware and any anti-oxidant compound for the joint when you order the braid.

Selling unit is each, so one braid per order, part number FBC36-1. Count one per bonding point, not per pair of points, and add spares if you are jumping a run of expansion joints or several enclosure doors on the same job.