{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9FL4L4H","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9FL4L4H","canonicalUrl":"https://aoctrl.com/schneider/LA9FL4L4H","factsUrl":"https://aoctrl.com/api/mcp/products/LA9FL4L4H","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F mechanical interlock, LA9FL4L4H, for 3 vertical contactors, mechanical interlocking type.","salesMarkdown":"The LA9FL4L4H is a mechanical interlock accessory in the TeSys F range, designed to prevent two contactors from closing simultaneously. It physically blocks one contactor's armature when the other is engaged, which is essential for reversing drives, star-delta starters, or any circuit where simultaneous closure would create a phase-to-phase short. ## Which Contactors It Fits This interlock mounts in a 3-vertical configuration and accepts a specific stack: bottom position takes LC1F265 through LC1F330 or CR1F265 through CR1F330 (3 or 4 pole); top position takes LC1F630 or LC1F800 (3 or 4 pole) or CR1F630 (3 or 4 pole); middle position takes LC1F630 or LC1F800 (3 pole) or CR1F630 (3 or 4 pole). That means a single LA9FL4L4H can handle a mixed pair of frame sizes — for example, a smaller bottom contactor and a larger top unit — which is common in reduced-voltage starting schemes where the main and bypass contactors differ in rating.","metaTitle":"LA9FL4L4H TeSys F Mechanical Interlock, for 3 Vertical Conta","metaDescription":"Active TeSys F mechanical interlock LA9FL4L4H for 3 vertical contactors. Interlocks LC1F265–LC1F800 and CR1F265–CR1F630. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"Range":"TeSys","title":"LA9FL4L4H","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","description":"TeSys F- mechanical interlock - for 3 vertical contactors","lifecycle_stage":"current","Device short name":"LA9F","Interlocking type":"Mechanical","Mounting position":"3 vertical","Interlocked device":"Bottom LC1F265...LC1F330 3P or 4P Bottom CR1F265 3P or 4P Top LC1F630 3P or 4P Top LC1F800 3P Top CR1F630 3P or 4P Middle LC1F630 3P or 4P Middle LC1F800 3P Middle 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2b912876febdef7ea1f98ba2d9650b30.pdf","sourceUrl":"https://www.se.com/vn/en/product/LA9FL4L4H/tesys-f-mechanical-interlock-for-3-vertical-contactors/"},"ai":{"faq":[{"question":"What contactors does the LA9FL4L4H interlock?","answer":"It interlocks LC1F265 through LC1F800 and CR1F265 through CR1F630 in a 3-vertical mounting arrangement, with specific position assignments for bottom, top, and middle contactors."},{"question":"What is the TeSys range?","answer":"The LA9FL4L4H belongs to the TeSys range, Schneider Electric's modular contactor and motor-control series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9FL4L4H","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/LA9FL4L4H when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}