3M™ Scotchlok™ S-11-A Nylon-Insulated Butted Seam Standard Closed End Connector connects permanently to the pre-stripped ends of two or more copper wires. Designed with a copper sleeve and a cover of molded nylon, the crimp-type connector allows for fast splicing of copper conductors and a max. voltage rating of 600V for building wire, 1000V for building signs and fixtures (luminaires). With the help of the connector's smooth, flared end, easily insert solid or stranded copper wire (only), ranging in sizes 22-16 AWG. Additionally, the butted-seam barrel's built-in wire stop quickly positions the wire cable exactly where needed. For a dependable connection and efficient positioning, use 3M™ Scotchlok™ S-11-A Nylon-Insulated Butted Seam Standard Closed End Connector.