The 3M Scotchlok Electrical IDC Pigtail Connector 557 provides a secure and insulated connection for two wire ends. Designed for use with 22-16 AWG solid or stranded copper conductors, this connector is ideal for electrical applications requiring a reliable and compact connection. It is UL and CSA certified, ensuring compliance with industry standards for safety and performance. The connector's flame retardant polypropylene insulator and tin-plated brass U-Contact contribute to its durability and electrical integrity. Commonly used in building wire and sign/fixture applications, the Scotchlok connector simplifies installation and provides a long-lasting, secure connection.