NK series 4-wire, 3-phase track, made of extruded aluminum, it housedthe conductors of cross –section 2.4mm square which have undergone an anti-oxidation. Treatment and are enclosed in two extruded PVC sections with high insulation recepticity. The ratingcurrent is 230V 16A and equal to a 3-phase total 11040w (3 * 3680w) loading .