What a Medium Duty Limit Switch does on the line
This is a Telemecanique XCKD2149M12 limit switch from Square D Sensors & Safety, classified as a Medium Duty Limit Switch — the kind you find on conveyor transfer points, machine guards, and part-present stations where the actuator cycles reliably but doesn't see the hammering of a stamping press. Medium duty means the mechanical life and operating force sit between a light-duty microswitch and a heavy mill-duty unit. It's the go-to for packaging lines, material handling, and general automation where the switch gets regular actuation but not abuse.