{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LC3D120AM7","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LC3D120AM7","canonicalUrl":"https://aoctrl.com/schneider/LC3D120AM7","factsUrl":"https://aoctrl.com/api/mcp/products/LC3D120AM7","rawCanonicalId":null},"summary":{"shortDescription":"Schneider TeSys D star delta starter, 3 x 3P (3 NO), 12 A, 220 V AC coil, AC-3 motor control duty, IP20 front face.","salesMarkdown":"The LC3D120AM7 is a TeSys D star delta starter from Schneider, built as a pre-wired assembly with three power poles, each carrying 3 NO contacts. It's rated for 12 A in AC-3 utilisation category, which means it's designed to switch three-phase induction motors during start-up — the star-delta transition limits inrush current, then the contactor set handles full-load running. The 220 V AC coil matches standard control voltages across European and Asian panel designs. The 12 A AC-3 rating governs motor duty, not resistive loads. AC-3 covers starting and switching off squirrel-cage motors under load. Pollution degree 3 confirms it's intended for industrial atmospheres with conductive pollution, so no extra conformal coating is needed in most cabinet environments. Fire resistance to 850 °C (IEC 60695-2-1) and V1 flame retardance (UL 94) mean the plastic housing won't propagate a flame if a fault arc or external fire hits the panel — important for UL-listed assemblies and machinery CE marking. ## Where this class of part is used Star delta starters like this one are the standard way to start three-phase induction motors above about 5 kW where direct-on-line starting would cause voltage dips or mechanical shock. The pre-wired assembly saves panel-build time — you get the three contactors, the timing relay, and the interconnections in one package that clips onto a DIN rail. Typical applications include pumps, compressors, conveyors, and fans where the load doesn't require a soft starter or VFD.","metaTitle":"Schneider LC3D120AM7 TeSys D Star Delta Starter, 12A, 220V A","metaDescription":"Obsolete TeSys D star delta starter, 3x3P NO, 12A AC-3 motor duty, 220V AC coil. Sourced to order against RFQ. IP20 front face, 850°C fire resistance.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactors"],"specifications":{"Range":"TeSys","Product name":"TeSys D","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/11484f13af47f38df6c75c226c1f3638.pdf","sourceUrl":"https://www.se.com/uk/en/product/LC3D120AM7/tesys-deca-star-delta-starter-3-x-3p-3-no-12-a-220-v-ac-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LC3D120AM7/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings I need to match for a replacement?","answer":"The critical specs are 12 A at AC-3 utilisation category for motor switching, 220 V AC coil voltage, and the 3 x 3P (3 NO) contact configuration for star-delta starting. The IP20 front face and pollution degree 3 are standard for panel-mount gear."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LC3D120AM7","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/LC3D120AM7 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}}