The AH165-TL5G11E3 is an illuminated pushbutton switch manufactured by Fuji Electric, featuring a flush rectangular head design with flat LED lamp technology. This oil-tight variant operates at 24V DC with a 1NO+1NC (one normally open, one normally closed) contact configuration, providing reliable switching for momentary action applications. The switch consumes 14 mA at 24V DC and is designed for 16 mm diameter panel mounting with a maximum panel thickness of 4 mm. The AH165 series is specifically engineered for harsh industrial environments including machine tools, control panels, and distribution panels, offering improved interfacing, easier installation, and enhanced safety through block-type contact design and terminal cover protection. It is certified by UL, CSA, TÜV, and CCC standards, ensuring compliance with international safety requirements.