Button 10 A 250V AC Complete devices with switchgear, frame and rocker, only for device carriers, button with label field 1 NO contact, with enclosed label strips, with symbols bell, light, key and neutral Color: pearl white, illuminated screw terminals Clamping range for copper conductors 1.5 mm and 2.5 mm, for the secure connection of aluminum conductors 2.5 mm without pretreatment