Mushroom Head, Operator Size 1.61 in dia, Color Amber, For Use With Schneider Push Buttons KR8, KR9, SKR8, and SKR9 Series, Size 30 mm, Basic Material Plastic, Illuminated, Head Material Non-Metallic, NEMA Rating 1, 12, 3R, 4, 4X, IP Rating 66, Standards CE, CSA, UL