{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9FL4K4J","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9FL4K4J","canonicalUrl":"https://aoctrl.com/schneider/LA9FL4K4J","factsUrl":"https://aoctrl.com/api/mcp/products/LA9FL4K4J","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F, LA9FL4K4J, mechanical interlock for 3 vertical contactors, obsolete lifecycle.","salesMarkdown":"The Schneider LA9FL4K4J is a mechanical interlock from the TeSys F range, designed to physically prevent simultaneous closure of two contactors in a reversing or changeover circuit. It mounts in a 3-vertical configuration and interlocks specific bottom, middle, and top contactors: bottom LC1F400 2P/3P/4P or CR1F400 3P/4P; middle LC1F500 2P/3P/4P or CR1F500 3P/4P; top LC1F630 3P/4P, LC1F800 3P, or CR1F630 3P/4P. ## Fit confirmation for the panel It interlocks only the specific TeSys F contactor models listed — verify your contactor frame (LC1F400/500/630/800 or CR1F400/500/630) and pole count (2P, 3P, or 4P) against the compatibility table before committing the BOM line.","metaTitle":"Schneider LA9FL4K4J TeSys F Mechanical Interlock, Obsolete","metaDescription":"Schneider TeSys F LA9FL4K4J mechanical interlock for 3 vertical contactors. Obsolete status; sourced to order against RFQ. Interlocks LC1F400/500/630/800 and CR1F400/500/630.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"Range":"TeSys","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","lifecycle_stage":"current","Device short name":"LA9F","Interlocking type":"Mechanical","Mounting position":"3 vertical","Interlocked device":"Bottom LC1F400 2P or 3P or 4P Bottom CR1F400 3P or 4P Middle LC1F500 2P or 3P or 4P Middle CR1F500 3P or 4P Top LC1F630 3P or 4P Top LC1F800 3P Top CR1F630 3P or 4P","Nbr. of units in pkg.":"1","Product or Component Type":"Mechanical interlock","Accessory / separate part category":"Interlocking accessory"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/55e29fbdf865ee85d12a318763a76ef0.pdf","sourceUrl":"https://www.se.com/vn/en/product/LA9FL4K4J/tesys-f-mechanical-interlock-for-3-vertical-contactors/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LA9FL4K4J/alternatives.json"},"ai":{"faq":[{"question":"What contactors does LA9FL4K4J interlock?","answer":"It interlocks bottom LC1F400 2P/3P/4P or CR1F400 3P/4P; middle LC1F500 2P/3P/4P or CR1F500 3P/4P; top LC1F630 3P/4P, LC1F800 3P, or CR1F630 3P/4P."},{"question":"What is the mounting configuration?","answer":"It mounts in a 3-vertical position, meaning a vertical stack of three contactors on the DIN rail or mounting plate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9FL4K4J","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/LA9FL4K4J 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}}