85640 is a type of insulated wire from Helukabel, a German electronics company. This type of wire is specifically designed for use in extreme temperatures, ranging from -60 to +150 degrees Celsius. It features excellent flexibility, tight bending radius, and superior resistance to mechanical and chemical influences. 85640 is also abrasion resistant and ozone resistant, making it suitable for continuous contact with dirt, dust, oil, and other corrosive substances. Additionally, it can easily stand up to the rigors of most industrial applications.