The 3M 3517/20SF (100FT) is an electrical wire designed for a wide range of applications, including medical equipment, aerospace, and telecommunications. This wire comes with a ribbon construction design, stranded conductor, copper alloy, and an insulation layer made of polyvinyl chloride (PVC). Its conductor gauge measures 20x28 AWG (20 individual strands of 28 AWG). The wire is black, 100 feet (30.5m) in length, and 1.27mm in diameter.