Blackburn EXH235A1870 EX-FLEX BRAID TNCU 2350A 4H 870MM

It's a flexible braid shunt connector for switchgear and substation work, rated 2350 amps with a 4-hole pad at each end. The conductor is tin-plated copper in a flat braid, so it carries high current while allowing movement between two bolted connection points, such as a switch blade, bus run, or expansion joint where rigid bar can't absorb thermal movement or vibration.

The EXH235A1870 terminates in 4-hole pads and is built to IEEE/ANSI C37.34, the standard for high-voltage air switches, so it is intended to land on standard drilled switch and bus pads. Confirm the hole pattern and spacing on your pad matches before ordering, and supply your own bolts, nuts, and Belleville washers; hardware is not part of the connector.

Use the braid wherever the two ends move relative to each other: thermal expansion on a long bus run, vibration from a transformer, or the travel on a switch blade. A rigid link is fine only when both pads are fixed and aligned. The EXH235A1870 is a flat flexible braid at 2350 A, so it handles the current a rigid link would while absorbing that movement instead of transferring stress into the pads.

The tin plating on this Blackburn braid resists oxidation at the contact surface, which matters on a bolted joint that has to hold low resistance for years outdoors or in a damp vault. It also makes the braid suitable for landing on aluminum or tin-plated pads without the galvanic issues a bare copper face can bring.

Sold each. One EXH235A1870 covers one connection point, so a three-phase application needs three, plus a spare if you are standardizing a substation.

Country of origin is the United States, which is the detail that usually decides it on federally funded utility and municipal projects with domestic-content requirements.