The Square D XCKL115 is a general-duty compact limit switch from the Osiswitch line, built for position sensing on conveyors, packaging machines, and material-handling equipment where space is tight and the environment is wet or dusty. The SPDT 1NO-1NC contact block is rated 240 VAC at 3 A and 250 VDC at 0.27 A — enough for pilot-duty control circuits on motor starters and PLC inputs, but not for direct motor switching. The rotary actuator gives 26° pretravel and 70° total travel with 11° differential, so it catches a cam or lever reliably without overtravel damage. The enclosure is NEMA 1/2/4/6/6P/12/13 and IP66, meaning it seals against hose-down washdown and temporary submersion — a fit for food-processing lines, outdoor conveyor galleries, and washdown zones. The Zamak zinc-alloy body resists corrosion and impact. Connection is via a 1/2" NPT conduit entry, standard for North American panel and machine wiring.
The 3 A at 240 VAC contact rating is the make/break capacity for resistive or inductive pilot loads — think contactor coils, solenoid valves, or indicator lamps. The DC rating of 0.27 A at 250 VDC reflects the arc-quenching limit for DC circuits; don't exceed that on a DC control bus. The snap-action mechanism gives consistent switching point and reduces contact bounce, which matters for PLC input modules counting fast cycles.