The Omron D4CC1031 is a metallic-body plunger limit switch from the D4CC series, with a 0.39 in stainless steel roller on the plunger. It provides SPDT momentary switching, rated 1 A at 125 V AC, and connects via a 4-pin M12 connector. The IP67 rating means the switch body and the plunger boot seal withstand direct water spray and dust ingress — suitable for washdown zones or outdoor conveyor lines.
The AC contact rating of 1 A at 125 V is the maximum switching capacity for resistive loads; for inductive loads like small relays or solenoid valves, derate per standard practice. The switch is not rated for DC loads, so it should not be used in DC control circuits without external arc suppression. The 17.65 N maximum operating force gives a firm, positive actuation feel — it won't trip from vibration or light contact, but requires deliberate plunger travel. Pretravel is 0.07 in, total travel 0.19 in, and differential travel 0.01 in. The tight differential means the switch resets with minimal plunger release, useful for precision position sensing where over-travel is limited. The M12 connector simplifies field wiring — no need to open the switch housing for terminations, which speeds replacement on a line-down call.
Where this class of switch is used
Plunger limit switches with roller actuators are common on automated assembly lines, packaging machinery, and material handling systems. They detect the presence or position of moving parts — a cam, a slide, a pallet — by mechanical contact. The IP67 and NEMA 3, 4, 13 ratings make the D4CC1031 suitable for wet washdown environments and outdoor installations where dust and rain are present.
The D4CC1031 is classified at a mature lifecycle stage. This means it is not in active promotion but remains available through distribution channels. No official successor order code is listed, so a form-fit-function substitute would need to be validated against the mounting hole pattern (25 mm centers, 0.2 in diameter) and the M12 connector pinout.