Blackburn FBS2H150A1-30 FLEX BRAID 2 9/16H 1/2X1-1/2X 30 IN

It's a flat, flexible tin-plated copper braid shunt used to carry current between two bolted points that need to move relative to each other, like switchgear blades, disconnect hinges, bus expansion joints, and transformer or grounding connections. Each end is a 2-hole flat pad that bolts down, and the braid between them flexes so vibration or thermal movement isn't transferred into rigid bus. Sold individually.

Yes. The FBS2H150A1-30 braid is built to CEI 60694 and IEEE/ANSI C37.34-1994, the standard covering high voltage air switch connections, which is why it shows up on disconnect switch and switchgear specs.

Overall braid length is 30 inches. The rest of the catalog description reads 2 9/16H 1/2 x 1-1/2, which is how Blackburn calls out the pad hole pattern and pad width on the 2-hole terminals. Order by the full part number FBS2H150A1-30 so you get that pad configuration with the 30 inch length, since the same pad style is offered in other lengths.

The conductor is tin-plated copper. Plating slows oxidation at the bolted pad faces, which is what keeps contact resistance from creeping up over time, and it lets the braid land on aluminum bus without a bare copper-to-aluminum couple. Bare copper braid is fine in a dry enclosure; tin plating is what you want outdoors, in substation yards, or in damp and industrial air.

Use the braid wherever the two landing points move: switch blade hinges, expansion joints, equipment on vibration isolators, or anything that gets thermally cycled. This one is a flexible flat braid, so it absorbs that movement instead of loading the bolts and pads. A solid bar or bus link is the right call only when both ends are rigidly fixed and aligned; if there is any relative motion, a bar will eventually crack a pad or loosen a joint.

Country of origin is the United States, which matters on federal, transit, and utility work carrying domestic content requirements. Cite it by the Blackburn part number FBS2H150A1-30 on your submittal.

No. The FBS2H150A1-30 ships as the braid itself, sold each, with 2-hole flat pads on the ends. Bolts, nuts, Belleville or flat washers, and any joint compound are separate, so pick hardware sized to the pad holes and the bus you are landing on, and torque to the equipment manufacturer's figure.

Don't cut it. The 30 inch length is measured with the pads factory-attached to the braid, and cutting removes one pad and frays the braid. If your gap is shorter, take up the slack as a loop or order the shorter length in the same pad style rather than modifying this one.