The 81733511 is a pneumatic pressure switch component used for pressure monitoring and control in industrial automation systems. It features an operating pressure range of 2 to 8 bar with an orifice diameter of 2.5 mm and average consumption of 5 Nl/min at 4 bars. The device operates reliably across a temperature range of -5°C to +50°C and is designed for non-lubricated air applications. With a mechanical life rating of 3 × 106 operations and a permissible overload capacity of 800 mb for 1 hour, this pressure switch is suitable for pneumatic control circuits, vacuum handling systems, and industrial automation equipment requiring precise pressure detection and switching functionality.