{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9FL4H4G","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9FL4H4G","canonicalUrl":"https://aoctrl.com/schneider/LA9FL4H4G","factsUrl":"https://aoctrl.com/api/mcp/products/LA9FL4H4G","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F, mechanical interlock, LA9FL4H4G, for 3 vertical contactors, LC1F185–LC1F800 and CR1F series.","salesMarkdown":"The Schneider Electric TeSys F LA9FL4H4G is a mechanical interlock accessory that prevents two or three contactors from being energized simultaneously — a standard requirement for reversing starters, star-delta transitions, or any circuit where simultaneous closure would create a phase-to-phase short. It mounts in a 3-vertical configuration and is designed to interlock specific TeSys F contactors: bottom-position LC1F185 through LC1F225 (3P or 4P) and CR1F185 (3P or 4P); middle-position LC1F265 through LC1F330 (3P or 4P) and CR1F265 (3P or 4P); top-position LC1F630 (3P or 4P), LC1F800 (3P), and CR1F630 (3P or 4P). This is a purely mechanical interlock — no electrical coil or auxiliary contacts — so it adds no load to the control circuit and introduces no electrical failure mode. The mechanical linkage physically blocks the opposing contactor's armature from closing. ## Integration Notes Mounts directly onto the contactor's front face without additional hardware. The 3-vertical orientation means the interlock bar runs along the three stacked contactors, so panel layout must account for the vertical alignment. No DIN-rail space consumed beyond the contactors themselves. Single unit per package — order one LA9FL4H4G per set of three contactors to be interlocked.","metaTitle":"Schneider LA9FL4H4G TeSys F Mechanical Interlock, 3 Vertical","metaDescription":"Schneider Electric TeSys F LA9FL4H4G mechanical interlock for 3 vertical contactors. Active lifecycle, sourced to order. Interlocks LC1F185 through LC1F800 and CR1F series.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"Range":"TeSys","title":"LA9FL4H4G","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 LC1F185...LC1F225 3P or 4P Bottom CR1F185 3P or 4P Middle LC1F265...LC1F330 3P or 4P Middle CR1F265 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dfc6e664f6d7c9f4c38c83cbaf3f708a.pdf","sourceUrl":"https://www.se.com/sg/en/product/LA9FL4H4G/tesys-f-mechanical-interlock-for-3-vertical-contactors/"},"ai":{"faq":[{"question":"Which contactors is this interlock compatible with?","answer":"It interlocks bottom-position LC1F185–LC1F225 and CR1F185 (3P or 4P), middle-position LC1F265–LC1F330 and CR1F265 (3P or 4P), and top-position LC1F630 (3P or 4P), LC1F800 (3P), and CR1F630 (3P or 4P)."},{"question":"What is the mounting orientation?","answer":"It mounts in a 3-vertical configuration — the three contactors are stacked vertically and the interlock bar runs along the front face."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9FL4H4G","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/LA9FL4H4G 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}}