Blackburn FBS4H130A1-12 FLEX BRAID 4 9/16H 1/4 X 3 X 12 IN

Four. The FBS4H130A1-12 is a 4-hole flexible braid connector, so each terminal pad is drilled for a four-bolt pattern rather than a single or two-bolt landing. If the bus bar or equipment pad you're connecting to is drilled for two holes, this one won't line up and you need a 2-hole braid instead.

12 inches overall. That's the figure to check against the gap between your two landing pads, because a braid that's too short gets pulled tight and loses the slack that lets it absorb movement, which is the whole reason for using braid instead of bar.

It's a flat, flexible tin-plated copper braid connector used to make a current-carrying connection between two pieces of gear that move, shift, or expand relative to each other, or where vibration and thermal movement would fatigue a solid bar. Typical spots are switchgear bus connections, transformer terminals, and bonding jumpers between rigid conductors. The braid flexes; the bolted pads at each end carry the connection.

The FBS4H braid uses tin-plated copper strands. The tin plating slows oxidation on the strand surfaces and at the bolted pads, which matters outdoors and in damp or corrosive air, and it's also what lets you land copper braid against aluminum bus with less galvanic trouble than bare copper. Bare copper braid will work electrically but will darken and build oxide at the contact faces over time.

Country of origin is the United States. On federally funded or Buy American Act work where domestic origin has to be documented for electrical connectors, that's the line item you'd reference for this braid.

Not without checking the spec. The FBS4H130A1-12 is a flat braid, and flat braid gives you a wide, thin section that flexes freely in one plane and bolts flush to a flat equipment pad. A round stranded jumper has different bend behavior and a different contact footprint. If the drawing calls for C37.34 braid with a 4-hole pad, a round cable jumper is a different article and should not be swapped in on that basis.

Individually. The selling unit is each, so one part number gets you one 12-inch 4-hole braid. Connections normally take one braid per phase, so a three-phase run means three pieces.

FBS4H130A1-12 is the manufacturer part number, Blackburn brand. Use that on the submittal and the purchase order; it's the 12-inch length in the 4-hole flat braid family.