Siemens 52PR8EZ, 52AAFD2B, 52BAJ Mushroom Head Push Button

Siemens 52PR8EZ is a 30 mm, red mushroom-head push button designed for rugged, panel-mounted control in industrial equipment. Belonging to Siemens’ Class 52 family, it delivers water- and oil-tight performance and corrosion resistance for harsh environments, making it a reliable operator in conveyor lines, packaging machines, and other automation panels. The model is listed with accompanying part numbers 52AAFD2B and 52BAJ, indicating an integrated push-button assembly that can be paired with Siemens contact blocks to form a complete operator unit. The mushroom head provides quick visual recognition and a large actuation surface, while the red head color signals a key control function in process control or safety circuits. As part of Siemens’ 30 mm push-button lineup, devices in this family are designed for standard 30 mm panel cutouts and mounting practices, ensuring straightforward installation in new builds or retrofit projects. This combination of compact size, robust environmental sealing, and clear head styling makes it suitable for control stations, machine centers, and other industrial applications where a durable, easily actuated red mushroom-button is required.