{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"D4A1105N","brand":"Omron","brandSlug":"omron","productSlug":"D4A1105N","canonicalUrl":"https://aoctrl.com/omron/D4A1105N","factsUrl":"https://aoctrl.com/api/mcp/products/D4A1105N","rawCanonicalId":null},"summary":{"shortDescription":"Omron D4A Series plug-in limit switch, SPDT, momentary, roller lever, IP67, 10 A @ 250 V AC, 0.4 A @ 250 V DC, UL/CSA/CCC.","salesMarkdown":"The Omron D4A1105N is a plug-in limit switch from the D4A series, built for industrial position sensing where you need a rugged, sealed package. It's a momentary-action SPDT switch with a roller lever actuator — no actuator included in the box, but the boot-sealed actuator is included, so you're ready for washdown environments right out of the gate. The IP67 rating and NEMA enclosure ratings covering 1, 2, 3, 4X, 5, 6P, 12, and 13 mean this switch handles everything from dust and dripping water to hose-down and temporary submersion. Out here in the grease, that's what keeps a limit switch from dying on a washdown cycle or a wet conveyor line. The aluminum body and screw terminals give it the mechanical backbone for high-vibration spots — shock resistant per the spec, with a 60° pretravel and 20° overtravel that gives you some forgiveness in cam or dog actuation setups. AC contact rating is 10 A at 250 V. DC contact rating is 0.4 A at 250 V DC, 0.8 A at 125 V DC, 10 A at 14 V DC, and 6 A at 30 V DC. If you're switching a 24 V DC solenoid or indicator lamp, the 6 A @ 30 V rating gives you headroom. But don't try to switch a 250 V DC motor contactor coil at 10 A — the 0.4 A limit at that voltage is the real constraint. ## Mounting and Mechanical Fit Surface mount with two 0.2-inch mounting holes spaced 59 mm vertically and 29 mm horizontally center-to-center. The body is 1.73 inches deep, 1.65 inches wide, and 2.97 inches tall — a compact footprint that fits standard limit switch mounting patterns. The roller lever actuator is side-mounted, with directional movement both CCW and CW. Operating torque is 3.54 in-lb maximum, so it won't trip on light contact but will actuate reliably from a cam or machine stop.","metaTitle":"Omron D4A1105N Limit Switch, SPDT, IP67, 10A @ 250V","metaDescription":"Omron D4A1105N plug-in limit switch with roller lever actuator. SPDT momentary action, IP67, NEMA 4X. 10 A @ 250 V AC, 0.4 A @ 250 V DC. UL, CSA, CCC listed. Mature lifecycle, sour","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Limit Switches"],"specifications":{"Brand":"OMRON","Action":"Momentary","Series":"D4A","IP Rating":"IP67","Pretravel":"60°","Standards":"CCC; CSA; UL Listed","Body Depth":"1.73 in","Body Style":"X","Body Width":"1.65 in","Overtravel":"20°","Body Height":"2.97 in","Contact Form":"SPDT","Total Travel":"85°","Body Material":"Aluminum","Mounting Style":"Surface","lifecycle_stage":"mature","AC Contact Rating":"10 A @ 250 V","Actuator Location":"Side","DC Contact Rating":"0.4 A @ 250 V; 0.8 A @ 125 V; 10 A @ 14 V; 10 A @ 8 V; 6 A @ 30 V","Includes Actuator":"No Actuator Included","Body Configuration":"Plug-In","Differential Travel":"30°","Boot Sealed Actuator":"Boot Included","Directional Movement":"CCW/CW","Electrical Connection":"Screw Terminals","NEMA Enclosure Rating":"1; 2; 3; 4X; 5; 6P; 12; 13","Resistance Properties":"Shock Resistant","Mounting Hole Diameter":"0.2 in","Compatible Actuator Type":"Roller Lever","Number of Mounting Holes":"2","Operating Torque - Maximum":"3.54 in-lb","Operating Temperature - Maximum":"212 °F","Operating Temperature - Minimum":"-40 °F","Mounting Hole Vertical Center to Center Distance":"59 mm","Mounting Hole Horizontal Center to Center Distance":"29 mm"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$99.06 – $236.03","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/D4A1105N/alternatives.json"},"ai":{"faq":[{"question":"What are the key electrical ratings for the D4A1105N?","answer":"AC contact rating is 10 A at 250 V. DC contact rating varies: 0.4 A at 250 V DC, 0.8 A at 125 V DC, 10 A at 14 V DC, 10 A at 8 V DC, and 6 A at 30 V DC. The SPDT contact form gives you one normally-open and one normally-closed set."},{"question":"What is the D4A1105N's action type?","answer":"It's a momentary-action switch — the contacts return to their normal state as soon as the actuator is released. This is typical for limit switches used in position sensing where you need to detect the presence or absence of a machine part."},{"question":"What series does the D4A1105N belong to?","answer":"It's part of the Omron D4A series of plug-in limit switches, designed for industrial environments with aluminum bodies and high ingress protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/omron/D4A1105N","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/D4A1105N 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}}