{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC3D120AU7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC3D120AU7","canonicalUrl":"https://aoctrl.com/schneider/LC3D120AU7","factsUrl":"https://aoctrl.com/api/mcp/products/LC3D120AU7","rawCanonicalId":null},"summary":{"shortDescription":"TeSys D, star delta starter, 3 x 3P (3 NO), 12 A, 240 V AC coil.","salesMarkdown":"The LC3D120AU7 is a TeSys D star delta starter from Schneider Electric, pre-wired with three power poles (3 x 3P, all normally open) rated for 12 A in AC-3 motor control duty. The 240 V AC coil is built in — no separate contactor-and-timer assembly needed for the transition. It is a single-component solution for starting a three-phase motor in star-delta configuration, reducing inrush current during startup. Pollution degree 3 means it handles conductive dust and condensation typical of industrial control cabinets. Operating temperature spans -40 to 70 °C at rated coil voltage, and storage range is -60 to 80 °C — fine for unheated warehouses or roof-mounted enclosures. ## Construction and compliance The housing is flame retardant to UL 94 V1 and withstands 850 °C glow-wire per IEC 60695-2-1. Climatic withstand meets IACS and IEC 60947-1 Annex Q Category D, with protective treatment TH per IEC 60068-2-30 for damp-heat environments. Vibration resistance is 2 Gn (contactor open) and 4 Gn (closed) over 5–300 Hz; shock resistance is 10 Gn open, 15 Gn closed for 11 ms — figures that matter if the panel is mounted on a machine frame or near a press.","metaTitle":"TeSys D LC3D120AU7 Star Delta Starter, 12 A, 240 V AC Coil","metaDescription":"TeSys D LC3D120AU7 star delta starter, 3 x 3P (3 NO), 12 A, 240 V AC coil. Active production. Motor control AC-3 duty. IP20 front face. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Range":"TeSys TeSys Deca","title":"LC3D120AU7","description":"TeSys D - star delta starter - 3 x 3P (3 NO) - 12 A - 240 V AC coil","Product name":"TeSys D TeSys Deca","Fire resistance":"850 °C conforming to 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":"conforming to IACS E10 conforming to IEC 60947-1 Annex Q category D","Operating altitude":"3000 m without derating","Device presentation":"Pre-wired","Protective treatment":"TH conforming to IEC 60068-2-30","Utilisation category":"AC-3","Contactor application":"Motor control","Mechanical robustness":"Vibrations contactor open: 2 Gn, 5...300 Hz Vibrations contactor closed: 4 Gn, 5...300 Hz Shocks contactor open: 10 Gn for 11 ms Shocks contactor closed: 15 Gn for 11 ms","IP degree of protection":"IP20 front face conforming to 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":"-60...80 °C","Ambient air temperature for operation":"-40...70 °C at Uc"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e85c6f337e5a834c0973f6e92e9229c5.pdf","sourceUrl":"https://www.se.com/uk/en/product/LC3D120AU7/tesys-d-star-delta-starter-3-x-3p-3-no-12-a-240-v-ac-coil/"},"ai":{"faq":[{"question":"What is the LC3D120AU7's listed range and product name?","answer":"It belongs to the TeSys D / TeSys Deca range and carries the product name TeSys D TeSys Deca."},{"question":"What compliance documentation does this part carry?","answer":"The part is rated for 850 °C fire resistance (IEC 60695-2-1), UL 94 V1 flame retardance, pollution degree 3, and climatic withstand per IACS and IEC 60947-1 Annex Q Category D. Protective treatment is TH per IEC 60068-2-30."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC3D120AU7","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/LC3D120AU7 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}}