AH165-TGLR11E3 is an oil-tight illuminated pushbutton switch manufactured by Fuji Electric, designed for industrial control applications requiring IP65 protection. The switch features a flush rectangular head with guard operator and flat LED lamp rated at 24V DC, with 1NO+1NC (one normally open, one normally closed) contact configuration for momentary action operation. It is constructed to withstand harsh environments including exposure to oils and moisture, making it suitable for machine tools, industrial machines, control panels, and distribution panels. The switch provides reliable interfacing with improved layout, easier installation, and enhanced safety for complex multifunctional control systems.