The 3RG40 72-0CD00: The Siemens 3RG4072-0CD00 is an M14 cylindrical inductive proximity sensor with a 2.5 mm flush sensing range, PNP output, and a 3-wire cable connection. It operates on 10–30 V DC and switches up to 0.3 A, with the output configurable as normally open or normally closed.
The M14 barrel and 3-wire cable make it a drop-in replacement for existing M14 inductive sensor mounts in conveyor, packaging, or material-handling lines where a 2.5 mm detection gap is sufficient for metal target presence. The PNP output is compatible with most PLC inputs and safety relays.