Blackburn SWC150A1705 FLEX BRAID TNCU 1500A 4H 705MM

It is a flat, flexible tin-plated copper braid connector rated 1500A, used as a flexible current-carrying link between rigid bus bars or switchgear terminations where thermal expansion, vibration, or slight misalignment has to be absorbed. The braid construction lets the connection flex without stressing the bus, and the 4-hole pattern at each pad bolts it to a standard drilled bus landing.

1500A. That puts it in medium- and high-current switchgear and substation service rather than branch-circuit work. If your bus is rated below that you can still use it, but the pad drilling and bolt pattern have to match the landing you are bolting to.

The pads on the SWC150A1705 are drilled 4-hole, so the bus landing it bolts to has to carry a matching four-bolt pattern. Two-hole NEMA drilled pads will not line up. Check the drilling on both ends of your run before you commit, because the braid is a fixed 705 mm assembly and the pads cannot be redrilled in the field without compromising the joint.

The conductor on the SWC150A1705 is tin-plated copper. Tin plating slows oxidation at the bolted pad faces, which is where contact resistance and heat rise start on a high-current joint, and it lets the braid land on aluminum or plated bus without the bare-copper corrosion concern. It also holds up better in humid or outdoor-rated enclosures.

Sold each. A typical bus connection needs one braid per phase, so a three-phase run means ordering three. Mounting bolts, washers, and Belleville hardware are not part of the braid and are ordered separately to suit your bus hole size.

Country of origin is the United States. That matters on public-agency, utility, and federally funded work where domestic-origin electrical components are a condition of the contract.