Single-layer Enameled Aluminum Flat Wire Insulated Aluminium Winding Wires are suitable for all “H”, “F” and “B” category applications, such as dry-type transformers, stator winding fractional HP motors, DC magnetic field and armature windings. Wires coated with polyester have good chemical resistance and are compatible with all common impregnating varnishes, including high-temperature modified phenolic polyester and other varnishes that do not contain reactive solvents.