The Square D XUFN02323 is a plastic fiber optic cable assembly designed for use with Telemecanique photoelectric sensors. It runs 6.6 ft (2 m) with a polyethylene jacket and a 0.04 in outer diameter, terminating in a threaded sensing tip and a standard mounting end. The diffuse sensing type gives a 1.47 in detection range, and the cable handles a 0.39 in minimum bending radius — tight enough for routing in crowded control panels without signal loss.
The 1.47 in sensing distance is the maximum reliable detection range for a diffuse reflective target — expect shorter range on dark or angled surfaces. Polyethylene jacket resists moisture and mild chemicals, making it suitable for washdown areas if the sensor head is also rated. The 0.39 in bend radius means you can snake it through 1/2 in conduit or around panel edges without cracking the fiber.