Brought to you by RS Pro, these wires are intended for internal wiring applications in electrical and electronic equipment, they meet the requirements of IEC60332-1. The high-quality inner conductor defines the flexibility and conductivity of the wire. Tin used in conjunction with copper boosts the coppers properties and helps the wire to last much longer and counter acts against oxidation. They are simply more flexible and resistant to bending. At the same time, a particular cross-section of stranded conductor gives it essentially the same resistance characteristics as a single-strand conductor, but with added flexibility. All models are highly reliable and excellent quality.