Thomas & Betts XC291 Steel City Conduit Connector Brand: Thomas & Betts. Part Number: XC291. Steel City Conduit Connector, Clamp Type Non-Insulated, 1/2 in, Cable Openings: 0.65 to 1 in, AC/FMC Cable, 90 deg, Die Cast Zinc, 2.08 in L. Additional Description: TB -XC291 1/2 INCH CONN,90D,AC/FLEX,DC,CLMP. Catalog Description: Connector, Non-Insulated 90 Degree Clamp-Type, Size 1/2 Inch, Clamping Range 0.65 Inch - 1.00 Inch, Length 2.08 Inch, Die Cast Zinc..