{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9FJ4H4F","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9FJ4H4F","canonicalUrl":"https://aoctrl.com/schneider/LA9FJ4H4F","factsUrl":"https://aoctrl.com/api/mcp/products/LA9FJ4H4F","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F mechanical interlock LA9FJ4H4F, for 3 vertical contactors, active production.","salesMarkdown":"The LA9FJ4H4F is a mechanical interlock from the TeSys F range, designed to physically prevent two or three contactors from closing simultaneously. It's a safety interlock, not an electrical one — the bar sits between the contactors and blocks their armatures if one is already pulled in. This version mounts in a 3-vertical stack and interlocks bottom contactors LC1F115...LC1F150 (3P or 4P) or CR1F150 (3P or 4P), middle LC1F265...LC1F330 (3P or 4P) or CR1F265 (3P or 4P), and top LC1F400 (2P, 3P, or 4P) or CR1F400 (3P or 4P). If you're running a reversing starter or a two-speed motor starter with these F-frame contactors, this is the mechanical tie-bar that keeps the power circuit from welding closed. Mounts vertically on the contactor stack — three units, one per pair. No DIN-rail footprint; it clips onto the contactor's own mounting tabs. The interlock bar is mechanical only, so no wiring, no coil suppression, no auxiliary contact to land. Just snap it on and verify the armature movement before powering up.","metaTitle":"LA9FJ4H4F TeSys F Mechanical Interlock, Active","metaDescription":"Active TeSys F mechanical interlock LA9FJ4H4F for 3 vertical contactors LC1F115-LC1F400. Sourced to order against RFQ. Lube-Tech Lonnie approved.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"Range":"TeSys","title":"LA9FJ4H4F","Category":"18402-WORLD SERVICE PARTS(CONTROL 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 LC1F115...LC1F150 3P or 4P Bottom CR1F150 3P or 4P Middle LC1F265...LC1F330 3P or 4P Middle CR1F265 3P or 4P Top LC1F400 2P or 3P or 4P Top CR1F400 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/30ef4c09b9d40eec079901199ca07310.pdf","sourceUrl":"https://www.se.com/sg/en/product/LA9FJ4H4F/tesys-f-mechanical-interlock-for-3-vertical-contactors/"},"ai":{"faq":[{"question":"What is LA9FJ4H4F's listed range?","answer":"It belongs to the TeSys F range of contactors and accessories from Schneider Electric."},{"question":"What category is LA9FJ4H4F listed under?","answer":"It is classified as 18402-WORLD SERVICE PARTS (CONTROL ACCESS) — a service-parts category for control accessories."},{"question":"What contactors does the LA9FJ4H4F interlock?","answer":"It interlocks bottom LC1F115...LC1F150 or CR1F150 contactors, middle LC1F265...LC1F330 or CR1F265, and top LC1F400 or CR1F400 — all in a 3-vertical stack."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9FJ4H4F","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/LA9FJ4H4F 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}}