What It Is and Where It Fits
The Schneider XUM2ANCNL2 is a miniature thru-beam photoelectric sensor from the OsiSense XU family. Its plastic body measures only 11 mm wide by 34 mm tall by 20 mm deep, so it slips into tight panel cutouts or machine cavities where a cylindrical sensor won't go. Detection is DC-powered, and the thru-beam pair gives you positive detection over a range that depends on the emitter/receiver alignment—no lens fogging worries from dust or ambient light interference like a diffuse sensor would bring.