{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4A2918N","brand":"Omron","brandSlug":"omron","productSlug":"D4A2918N","canonicalUrl":"https://aoctrl.com/omron/D4A2918N","factsUrl":"https://aoctrl.com/api/mcp/products/D4A2918N","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4A series, D4A2918N, limit switch, roller lever actuator, 2CO contacts, IP67, 600 VAC / 250 VDC switching.","salesMarkdown":"The Omron D4A2918N is a limit switch from the D4A series, fitted with a roller lever actuator and a 2CO contact configuration. It switches up to 600 VAC at 1.2 A or 250 VDC at 400 mA, with an insulation voltage of 500 V. The IP67 rating means the switch body and the roller lever mechanism are sealed against dust ingress and temporary immersion — suitable for washdown zones on packaging lines or conveyor transfer stations where coolant spray is present. Termination is via a 0.5-14 NPT conduit thread — the standard for US industrial enclosures. The 2CO contacts (two form C changeover pairs) give one normally-open and one normally-closed set per pole, which covers both safety-circuit feedback and PLC input in a single device. Wire the common to the supply, the N.O. to the input card, and the N.C. to the safety relay chain. The roller lever actuator provides overtravel and side-approach actuation; mount so the roller contacts the cam face squarely to avoid side-loading the lever pivot.","metaTitle":"Omron D4A2918N Limit Switch, Roller Lever, 2CO, IP67","metaDescription":"D4A2918N limit switch from Omron D4A series. Roller lever actuator, 2CO contacts, IP67, 600 VAC / 250 VDC switching. Mature lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"title":"D4A2918N","Series":"D4A","description":"Limit Switch, Roller Lever, 2CO","Actuator Type":"Roller Lever","lifecycle_stage":"mature","Termination Type":"Conduit Thread, 0.5-14 NPT","Protection Rating":"IP67","Insulation Voltage":"500 V","Contact Configuration":"2CO","Switching Current - AC":"1.2 A","Switching Current - DC":"400 mA","Switching Voltage - AC":"600 V","Switching Voltage - DC":"250 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$207.01 – $276.79","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8c0448c092c42938431b1006550ce8ec.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is D4A2918N's listed series?","answer":"It belongs to the Omron D4A series of limit switches."},{"question":"What actuator type does D4A2918N use?","answer":"A roller lever actuator, suitable for cam-operated or slide-actuated machine positions."},{"question":"What are the key electrical ratings?","answer":"Switching current: 1.2 A AC, 400 mA DC. Switching voltage: 600 VAC, 250 VDC. Insulation voltage: 500 V. Contact configuration: 2CO (two changeover contacts)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4A2918N","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/D4A2918N 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}}