{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E3SCR66OMS","brand":"Omron","brandSlug":"omron","productSlug":"E3SCR66OMS","canonicalUrl":"https://aoctrl.com/omron/E3SCR66OMS","factsUrl":"https://aoctrl.com/api/mcp/products/E3SCR66OMS","rawCanonicalId":null},"summary":{"shortDescription":"Omron E3S-C Series Retro-Reflective Photoelectric Sensor, E3SCR66OMS, LED Red, M12 4-Pin Connector, 3m Sensing Distance, 30V DC, IP67.","salesMarkdown":"The E3SCR66OMS is an Omron E3S-C series retro-reflective photoelectric sensor with a 3 m sensing range, housed in a 23×20×57 mm rectangular body. It operates on 10–30 V DC and delivers a configurable NPN or PNP output, selectable for light-ON or dark-ON logic. The M12 4-pin connector allows quick disconnect without opening the panel, and the IP67 rating handles washdown environments. The closest retro-reflective sibling is the E3S-CR61, which shares the same 3 m range, 10–30 V supply, and dual NPN/PNP output. The critical difference is termination: the E3S-CR61 uses a fixed 2 m bare-wire cable, while the E3SCR66OMS terminates in an M12 4-pin connector. That means the E3SCR66OMS drops into a panel with pre-run M12 cord sets; swapping to the CR61 requires removing the connector and splicing wires. The E3SCR66OMS also carries a higher load current (100 mA vs 40 mA), making it suitable for directly driving small relays. The M12 4-pin connector mates to standard A-coded cordsets (pinout per Omron wiring diagram). The sensor accepts 10–30 V DC; the output switches 100 mA max. With selectable light/dark logic and both NPN/PNP in one unit, this one part can serve both sinking and sourcing PLC inputs across different line builds.","metaTitle":"Omron E3SCR66OMS Retro-Reflective Sensor, M12, 3m, 30V","metaDescription":"Omron E3S-C series retro-reflective photoelectric sensor, 3m range, 10-30V DC, NPN/PNP selectable, 100mA load, IP67, M12 4-pin connector. Current production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Width":"23 mm","title":"E3SCR66OMS","Height":"20 mm","Length":"57 mm","Series":"E3S-C","Light Type":"LED, Red","Sensor Type":"Retro-Reflective Sensor","description":"Photoelectric Sensor NPN / PNP 3m 1ms 30V 100mA LED, Red Connector, M12, 4-Pin IP67 E3S-C","Load Current":"100 mA","Response Time":"1 ms","Switching Type":"Light-ON / Dark-ON","lifecycle_stage":"current","Termination Type":"Connector, M12, 4-Pin","Protection Rating":"IP67","Sensing Distance Max.":"3 m","Operating Voltage Max.":"30 V","Operating Voltage Min.":"10 V","Operating Temperature Max.":"55 °C","Operating Temperature Min.":"-25 °C","Optical Sensor Output Type":"NPN;PNP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$90.50 – $259.92","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2583ab3eda2010a036e9a90fd8dfcc1b.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the sensing range, IP rating, and operating voltage?","answer":"3 m, IP67, and 10–30 V DC."},{"question":"Is the output NPN or PNP and how is it wired?","answer":"The output is selectable for NPN or PNP, with light-ON/dark-ON logic. Wiring is through the M12 4-pin connector; the specific pin assignments are in the Omron datasheet."},{"question":"Can the E3SCR66OMS replace the E3S-CR61 without rewiring?","answer":"No. The E3S-CR61 has a fixed bare-wire cable; the E3SCR66OMS uses an M12 connector. A panel wired for the CR61 would need an M12 cordset and possibly a different mounting provision. Also note the CR61 is rated 40 mA load vs 100 mA on this part."},{"question":"What are the key dimensions?","answer":"Width 23 mm, height 20 mm, length 57 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E3SCR66OMS","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/omron/E3SCR66OMS when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}