Enamel Coated Round/Flat Wire Enamelled aluminum wire is a type of winding wire made by electric round aluminum rod which drawn by dies with special size, then over coated with enamel repetitiously. Enamelled Aluminum Wire is a fundamental part of a winding in every electrical machine or apparatus. Compared to fibrous insulation, enamelled aluminium wire offers a favourable space saving factor together with a high level of breakdown voltage. The main application of Enamelled Enamelled Aluminium wire is in winding of Motor and Transformers.