Push Button Operator, 22 mm, Momentary Push, Type of Operator Flush Button, Basic Material Plastic, Head Material Plastic, Bezel Material Double-Insulated Plastic, Color Green, NEMA Rating 1, 13, 2, 3, 4, 4X, IP Rating 66, Legend START, Legend/Background Color White/Green, Standards CE, CSA, EN/IEC 60947-1, EN/IEC 60947-5-1, RoHS, UL