Siemens 3RG4050-7AF05 Proximity Switch 15-34V PNP

Siemens 3RG4050-7AF05 is a three‑wire DC proximity switch with a PNP output, designed for 15–34 V DC operation. It belongs to Siemens NS‑BERO inductive proximity sensors and uses a flush‑mounted 6.5 mm sensing element to detect metal targets without protruding the body. The device carries an IP67 enclosure rating, making it suitable for tough industrial environments, including washdown or dusty conditions. With a maximum load current of 200 mA, it provides reliable high‑side (PNP) switching directly from the sensor to the connected load. The 3RG4050‑7AF05 is specified for 15–34 V DC supply and three‑wire configuration, enabling straightforward integration into standard control circuits and automation panels. This model is commonly used for end‑of‑travel and position sensing where a compact, robust inductive sensor is required, and is part of Siemens' broader BERO family of proximity switches.