illuminated pushbutton for Extension Units, 22 mm, round, plastic, momentary contact type, with integrated white LED, with 6 lens assemblies (colorless, red, yellow, green, blue, black), 1 NO contact, without inscription, (incl. printed circuit board with contact module), scope of supply: 1 illuminated pushbutton, 1 printed circuit board, 6 lens assemblies, including mounting accessories