The Omron D4CC1002 is a metallic-body limit switch from the D4CC series, fitted with a top-mounted roller plunger actuator. It uses a SPDT contact arrangement rated for 1 A at 125 V AC — that's a signal-level switching capacity, not a power circuit. The momentary action means the contacts return to their normal state as soon as the plunger is released, which is the standard behavior for position-sensing in automated lines. The IP67 rating means the switch body and the M12 connector interface are sealed against dust ingress and temporary immersion in water — it's washdown-safe for food processing, packaging, or any environment where hoses are used. The NEMA 3, 4, and 13 ratings back that up for North American installations: outdoor rain, splash, and oil/coolant exposure are all within spec.
Where you'd use it
This is a position-sensing limit switch for linear motion detection on conveyors, transfer lines, or machine guards. The roller plunger tracks cam profiles or moving parts, and the 0.07 in pretravel with 0.19 in total travel gives a defined actuation window. Surface-mount with two 0.2 in holes — standard for panel or bracket mounting. The aluminum body holds up in industrial environments where plastic housings would crack. The M12 4-pin connector makes field replacement fast — no hardwiring into the junction box, just unplug and swap. That matters when a line is down and the technician needs to get production moving again in minutes, not hours.
The M12 connector variant is less common than the screw-terminal versions in the D4CC family, so confirm connector compatibility with your existing harness.