Mushroom Head, Operator Size 1.38 in dia, Color Green, For Use With Schneider Non-Illuminated Mushroom Operators KR4 and SKR4 Series, Size 30 mm, Basic Material Plastic, Non-Illuminated, Connection Type Snap On, NEMA Rating 1, 12, 3R, 4, 4X, IP Rating 66, Standards CE, CSA, UL