Blackburn SWC235A11490 STD FLEX BRAID 4H NEMA 1490MM LONG

It's a flat, flexible copper braid jumper with NEMA 4-hole pads on the ends, used to make a flexible current-carrying or grounding connection between two bolted bus or equipment pads where rigid bus can't be used, such as across expansion joints, switchgear, or disconnect terminations. The braid construction lets the connection move or absorb vibration without stressing the pads.

Yes. The terminal pads are NEMA 4-hole drilled, so they bolt directly to equipment and bus pads drilled to the standard NEMA 4-hole pattern. If your equipment pads are 2-hole or a non-NEMA pattern, this part will not line up and you need a matching 2-hole braid instead.

The braid is built to IEEE / ANSI C37 and C34 1994. If your drawing or MRO spec references C37 for switchgear connections, this part answers it. Cite the model number SWC235A11490 on the submittal.

The conductor is copper. Copper braid to copper or tin-plated copper pads is a direct bolt-up. If you are landing on aluminum bus, use an appropriate bimetallic washer or plated hardware and joint compound to keep the dissimilar-metal joint from corroding.

It is sold each, so one braid per unit ordered. Three-phase work needs three, and most bus-crossing jobs need one per phase plus any neutral or ground run. Bolts, washers and Belleville hardware are not part of the braid assembly, so order fastening hardware separately.

A flat flexible braid takes movement in every direction and has a large surface area for its cross-section, so it handles thermal expansion, equipment shifting, and vibration that would crack a rigid bus bar or fatigue a stiff cable lug. Rigid bus is the right call for fixed, straight runs; a braid is what you use where the two ends move relative to each other or where you need to drop equipment out for service without cutting bus.

Country of origin is the United States. For federally funded or Buy American Act work, reference Blackburn SWC235A11490 with the US origin on your submittal package.