Blackburn EXH150A1280 FLEX CONN.4 HOLES 1500AMP 280MM

The EXH150A1280 is an extra flexible braid connector rated 1500 amps with four bolt holes, built for switchgear and substation bus connections where two rigid bus runs need a flexible link that absorbs thermal expansion and vibration. It is built to IEEE/ANSI C37.34, the standard for high voltage air switches, so it is a switchgear-class shunt rather than a general purpose cable lug.

280 mm, which is 11.02 inches. That is the overall braid length, so measure the gap between your two bus pads and allow for the flex loop before you commit to this size, since the braid needs slack to do its job.

The conductor is tin-plated copper. Tin plating is what lets it land on either copper or aluminum bus bar without the bare copper to aluminum contact that drives galvanic corrosion. Use the joint compound and hardware your bus spec calls for at the pad.

Flat. The conductor shape is flat and the construction is a flexible braid, classed as very flexible, so it lays against a bus pad face and flexes in the plane of the bus rather than behaving like a round cable jumper. If your application needs a round stranded shunt, this is the wrong shape.

Four holes means a two-hole pad pattern at each end, which spreads the 1500 amp current over more bolted contact area and keeps the terminal from rotating under load or fault forces. Your bus pads have to be drilled to match that pattern at both ends, so check the existing pad drilling before ordering a 4-hole terminal.

Each. The selling unit is one connector, so if you are jumping both sides of a switch or landing multiple phases, order one per connection point (three for a three-phase set).

Country of origin is the United States. For federal, utility, or transit work carrying domestic sourcing requirements, that matters at submittal time. The part number to specify is EXH150A1280.