Rectangular quad build have different types of enamel with very good mechanical strength and bonding properties. Very consistent quality and dimension tolerances in line with industry standards. Wide range of dimensions, yarns and insulation builds available. Very thin grades for wind turbine generators. Improved mechanical strength, high-performance yarns and impregnation varnishes. - Rectangular quad build has a very high resistance to corona discharges for inverter applications. Soft wire for easy winding. Excellent thermal and chemical properties. Suitable for windings that are subjected to constantly high temperatures and mechanical stress.