The Omron E2E-X12B1D18 5M is an inductive proximity sensor from the E2E NEXT series, with 12mm sensing distance, shielded M18 barrel, and PNP-NO output via cable leads. Sensing distance holds at 12mm on mild steel, and the 500Hz response frequency keeps up with fast-moving parts on a conveyor or indexing table. The sensor carries IP67 and IP69K ingress protection ratings. Supply voltage is 10 to 30 VDC; the shielded housing allows flush mounting in steel without derating the sensing range.
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That means if your existing wiring expects a NC channel for fail-safe monitoring, the E2E-X12B1D18 5M only covers the NO leg; you would need an additional sensor or a logic change to replicate the NC function. The sensor has cable leads for termination, suitable for permanent wiring.