The 55A0111-12-3 is a SPEC 55 series 12 AWG lightweight hookup wire with a single wall of orange insulation. It is built with a tin-coated copper conductor and is rated for 600V service. The insulation is a modified, radiation cross-linked ETFE polymer, providing a continuous operating temperature range of -65°C to +150°C. This construction offers excellent resistance to chemicals, scrape abrasion, and cut-through while maintaining flexibility. Its small size, light weight, and solder-iron resistance make it ideal for reliable installation in high-density applications such as internal equipment wiring and protected harnesses.