The Square D Telemecanique XCKJ1167DSA8 is a heavy-duty, plug-in limit switch from the Osiswitch line, built for environments that demand reliable position sensing under washdown or oily conditions. It carries a NEMA 1/2/4/12 and IP66 enclosure rating — meaning it's sealed against hose-directed water and dust ingress, so it belongs on machine tools, conveyor transfer stations, and packaging lines where coolant or washdown is routine. The switch uses a steel top roller plunger head with a spring-return, snap-action mechanism. Pretravel is 3.2 mm, differential travel is 1.5 mm, and it takes 48 oz of force to trip. That's a fairly firm actuation — it won't false-trigger from vibration or light contact, but you'll want to confirm the cam or dog profile delivers enough overtravel to keep the roller engaged through the full stroke. Contact configuration is SPDT, rated 240 VAC at 10 A and 250 VDC at 0.27 A. The DC rating is the one to watch — at 0.27 A it's fine for pilot-duty PLC inputs or relay coils, but don't expect to break a DC solenoid or brake coil at that voltage without external arc suppression. The AC rating handles the usual motor-starter or contactor coil loads directly.
Connection and wiring
The switch terminates in an M12 5-pin male connector — no pigtail, no flying leads. That's a clean, field-replaceable connection if the cable gets pinched or oil-soaked. The body is ZAMAK zinc alloy, so it's corrosion-resistant but not stainless; in a caustic washdown or salt-spray area you'd want to verify compatibility or add a protective boot.
The switch carries UL and CSA approval, and is designed to meet EN/IEC 60204-1 and EN/IEC 60947-5-1. That covers the machinery safety and control-device standards you'd expect for a limit switch in an industrial panel or machine tool. Operating temperature range is -13 to 158 °F (-25 to 70 °C), which covers most indoor plant environments but not freezer or oven applications.