Schneider Mushroom pushbutton head, metal, blue, Ø 40Illuminated metallic complete unit with contact function. It combines simplicity of installation, flexibility, and robustness. It meets the requirements of the majority of industrial applications.\nHead for non illuminated push button has a Blue mushroom 40 mm, unmarked operator profile, spring return operator, round shape of signalling unit head, standard head type, Chromium plated metal bezel material and 22 mm mounting diameter to name a