What this sensor is and where it belongs
The Telemecanique XS230BLNAM12 is a Series XS2 inductive proximity sensor in a cylindrical M30 threaded brass body with nickel plating. It detects ferrous targets up to 15 mm away without needing a shielded flush mount — the unshielded face means you get that full range, but you'll want some air around the sensing head (typically 3x the diameter) to avoid false triggers from nearby metal. The NPN normally-open output switches 200 mA at 12-24 VDC, so it talks straight to a PLC input or a relay coil without extra interface gear.
The 15 mm sensing distance is the headline number — that's the maximum range to a mild-steel target at 25 °C, and it'll derate a bit on stainless or aluminum. The unshielded construction gives you that reach but requires a non-flush installation; if your bracket has the sensor sunk into a steel block, you need a shielded variant instead. The M12 connector (4-pin) keeps wiring quick on the line — no pigtail to strain or cut, just a standard quick-disconnect cable. IP67 plus NEMA 4X means the brass body handles high-pressure washdown and corrosive atmospheres, so it's at home on food-grade conveyors or outdoor aggregate plants. Operating range of -13 to 158 °F covers most industrial environments short of a freezer tunnel or a kiln.
Listed with CE, CSA, RoHS, and UL marks, so it meets the regulatory requirements for most industrial installations in North America and the EU. No special documentation burden for a standard industrial sensor.