{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC3D18AQ7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC3D18AQ7","canonicalUrl":"https://aoctrl.com/schneider/LC3D18AQ7","factsUrl":"https://aoctrl.com/api/mcp/products/LC3D18AQ7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys D, star delta starter, 3 x 3P (3 NO), 18 A, 380 V AC coil, pre-wired.","salesMarkdown":"It comes pre-wired with a 380 V AC coil, so it lands ready for panel integration without additional wiring on the contactor assembly. Built for motor control duty, this starter handles the transition from star to delta on three-phase induction motors up to the rated current. The AC-3 category means it's designed for starting and stopping squirrel-cage motors under load — the typical use in conveyors, pumps, and compressors. Because it's a star delta starter with a specific 380 V AC coil voltage, the drop-in replacement depends on the exact wiring and panel layout. No official successor order code is listed; a cross-reference to a current TeSys D part requires verifying the coil voltage and pole configuration against the application. ## Environmental and mechanical ratings The front face carries IP2X protection — finger-safe against accidental contact, but not sealed against moisture or dust. Flame retardance is V-1 per UL 94, and the part withstands 850 °C glow-wire test per IEC 60695-2-1. Operating temperature range is -40 to 158 °F (-40 to 70 °C) at rated coil voltage, with storage from -76 to 176 °F (-60 to 80 °C). The altitude rating of 3000 m without derating covers most installations outside high-altitude mining or mountain sites.","metaTitle":"Schneider TeSys LC3D18AQ7 Star Delta Starter, 18 A, 380 V AC","metaDescription":"Obsolete TeSys D star delta starter, 3 x 3P NO, 18 A AC-3, 380 V AC coil. Sourced to order against RFQ. IP2X front face, V-0 flame retardance.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactors"],"specifications":{"Range":"TeSys","Category":"18400-WORLD SERVICE PARTS(CONTACTORS)","Product name":"TeSys D","Fire resistance":"1562 °F (850 °C) IEC 60695-2-1","lifecycle_stage":"current","Flame retardance":"V1 conforming to UL 94","Pollution degree":"3","Device short name":"LC3D","Poles description":"3 x 3P","Climatic withstand":"IACS E10 IEC 60947-1 Annex Q category D","Operating altitude":"9842.52 ft (3000 m) without derating","Device presentation":"Pre-wired","Protective treatment":"TH IEC 60068-2-30","Utilisation category":"AC-3","Contactor application":"Motor control","Mechanical robustness":"Vibrations contactor open2 Gn, 5...300 Hz Vibrations contactor closed4 Gn, 5...300 Hz Shocks contactor open10 Gn for 11 ms Shocks contactor closed15 Gn for 11 ms","Nbr. of units in pkg.":"1","IP degree of protection":"IP2X front face IEC 60529","Product or Component Type":"Star delta starter","Power Pole Contact Composition":"3 x 3 NO","[Ue] rated operational voltage":"Power circuit 10 MOhm for signalling circuit","Ambient Air Temperature for Storage":"-76...176 °F (-60...80 °C)","Ambient air temperature for operation":"-40...158 °F (-40...70 °C) at Uc"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/668588bd00f6dddc4d3b0b4c425ed903.pdf","sourceUrl":"https://www.se.com/vn/en/product/LC3D18AQ7/tesys-deca-star-delta-starter-3-x-3p-3-no-18-a-380-v-ac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC3D18AQ7/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to the LC3D18AQ7?","answer":"No official successor order code is published. A current TeSys D star delta starter with the same pole configuration and 380 V AC coil would be the closest functional match, but the exact replacement depends on verifying the coil voltage and mounting footprint against the application."},{"question":"What range and series does the LC3D18AQ7 belong to?","answer":"It belongs to the TeSys range, specifically the TeSys D product line of contactors and motor starters."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC3D18AQ7","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/LC3D18AQ7 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}}