Blackburn SWB070A21219 FLEXIBLE BRAID,SWB070A2,48.00 INCH

The SWB070A21219 braid measures 48 inches (1219 mm) overall. That is a long run for a braid jumper, so it suits bonding across a distance, such as tying a transformer or enclosure back to a ground bus that is not immediately adjacent, or spanning an expansion joint in a busway or raceway run. It is sold individually, one braid per unit.

It is a 2-hole flexible braid connector, meaning each end terminates in a pad with two bolt holes. Two-hole pads resist rotation under torque and vibration, which is why they are specified for bonding jumpers on equipment grounding and switchgear connections. Plan for two fasteners at each end when you lay out the pad drilling.

The conductor is tin-plated copper braid. The tin plating slows oxidation on the strand surfaces compared with bare copper, which matters in damp rooms, outdoor pad-mounted gear, and coastal or industrial air. It also makes the braid friendlier where it lands on aluminum or plated hardware. It is made in the United States.

A braid is the right call anywhere the two bonded points move relative to each other. Flat flexible braid absorbs vibration, thermal expansion, and equipment movement without work-hardening the connection the way a rigid copper bar would, so it is used across expansion joints, on transformer cases, on switchgear doors, and on hinged enclosure panels. A rigid bar is the better pick for a fixed, non-moving bus link; a stranded cable with compression lugs is the better pick for long, routed ground runs where the flat profile gains you nothing.

Order Blackburn SWB070A21219, which is the SWB070A2 braid cut at 48 inches. It ships as a single braid per unit, so quantity equals the number of jumpers you need. Nothing else is bundled with it, so order your bolts, nuts, and washers for the pad holes separately to match the drilling on your bus or lug pads.

The conductor is flat rather than round, so it lies close to a surface and tucks behind equipment or along a frame where a round cable of the same cross section would stand proud. The flat profile also lets it bend in one plane freely, which helps when the jumper has to fold back on itself in a shallow gutter or wireway.