{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"E2B-M12KS04-M1-C2","brand":"Omron","brandSlug":"omron","productSlug":"E2B-M12KS04-M1-C2","canonicalUrl":"https://aoctrl.com/omron/E2B-M12KS04-M1-C2","factsUrl":"https://aoctrl.com/api/mcp/products/E2B-M12KS04-M1-C2","rawCanonicalId":null},"summary":{"shortDescription":"Omron E2B series, E2B-M12KS04-M1-C2, Shielded 12 mm cylindrical proximity sensor, 4 mm sensing distance, NPN normally closed output, M12 connector.","salesMarkdown":"## Sensor Selection Brief The E2B-M12KS04-M1-C2: A shielded 12 mm diameter cylindrical proximity sensor from Omron's E2B series, with a 4 mm sensing distance. Output is NPN normally closed, wired via an M12 connector. The short-body brass housing suits flush-mount installations where target material is ferrous metal. ## Sensing and Output Details Shielded construction allows flush mounting in metal without derating the sensing distance, unlike unshielded types that require a non-ferrous zone around the face. Normally closed output means the switch opens when a target enters the sensing field — often chosen for fail-safe circuits where a broken wire or sensor failure breaks the loop. At 4 mm nominal sensing distance with an NPN output, this sensor reads standard carbon steel targets; use the standard correction factor for other metals. ## Wiring Preference vs. the Pre-Wired Sibling The E2B-M12KS04-WP-C2 2M delivers the same electrical function — shielded, NPN NC, 4 mm sensing — but terminates through a 2-meter PVC pigtail instead of an M12 connector. If your panel is wired with M12 receptacles, the M1-C2 variant plugs in directly. The WP-C2 2M requires a junction box or splice if you're converting from a connector-based layout.","metaTitle":"Omron E2B-M12KS04-M1-C2, Shielded 4mm NPN NC Prox","metaDescription":"Omron E2B-M12KS04-M1-C2 shielded proximity sensor, 12mm diameter, 4mm sensing, NPN normally closed, M12 connector. Current production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Proximity Sensors"],"specifications":{"Part #":"E2B-M12KS04-M1-C2","Shield":"Shielded","Weight":"0.45 kgs","Category":"Limit and Proximity Switches","Housing Size":"12 mm diameter","Sub Category":"Proximity Detection Switches","Top Category":"Switches","Barrel Length":"Short body","Operation Mode":"Normally closed","Connection Type":"M12 connector","lifecycle_stage":"current","Sensing Distance":"4mm sensing distance","Power Source and Output":"NPN","Housing Shape and Material":"Cylindrical, metric thread, brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.64","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/E2B-M12KS04-M1-C2/alternatives.json"},"ai":{"faq":[{"question":"What is the shielding?","answer":"Shielded construction."},{"question":"How does it compare to the pre-wired version E2B-M12KS04-WP-C2 2M?","answer":"Functionally identical but with an M12 connector instead of a 2-meter PVC cable; choose based on your panel wiring method."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/E2B-M12KS04-M1-C2","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/E2B-M12KS04-M1-C2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}