Siemens 3SB3 647-0AA41-0CC0 Illuminated Pushbutton

Siemens 3SB3 647-0AA41-0CC0 is a 22 mm round illuminated pushbutton from the 3SB3 family, designed for panel mounting with a green plastic head and integrated LED illumination to indicate when the circuit is energized. It features a 1 NO + 1 NC contact arrangement for flexible signaling and uses spring-type terminals with a holder for secure installation in standard 22 mm panel cutouts. The button is described as flat-button style and is rated IP40, making it suitable for typical indoor industrial environments. This exact configuration is commonly used in control panels and machine interfaces where a compact, clearly lit operator input is needed, providing reliable signaling in automation schemes without occupying extra panel space. The 3SB3 line is designed for modular use with compatible accessories and contact blocks, enabling easy expansion or replacement in existing installations.