The AH165-TLY22E3 is an illuminated pushbutton switch manufactured by Fuji Electric, featuring a flush rectangular head operator with flat LED lamp technology. This switch operates at 24V DC and provides 2NO+2NC (2 normally open + 2 normally closed) contact configuration in momentary action mode. The device is designed for industrial control applications including machine tools, control panels, and distribution panels, offering reliable electrical switching with integrated illumination for enhanced operator visibility. The LED lamp consumes 14 mA at rated voltage, ensuring efficient operation with low power draw. This switch is commonly used in complex multifunctional control systems where improved interfacing, easier installation, and increased safety are required.