{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9FL4L4G","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9FL4L4G","canonicalUrl":"https://aoctrl.com/schneider/LA9FL4L4G","factsUrl":"https://aoctrl.com/api/mcp/products/LA9FL4L4G","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F, mechanical interlock LA9FL4L4G, for 3 vertical contactors, interlocking LC1F185 through LC1F800 and CR1F630 contactors.","salesMarkdown":"The LA9FL4L4G is a mechanical interlock from the TeSys F range, designed to physically prevent two or three contactors from closing simultaneously. It mounts in a vertical stack of three, interlocking specific bottom, middle, and top contactor positions. The interlock engages with LC1F185 through LC1F225 3P or 4P contactors on the bottom, LC1F630 or LC1F800 3P on the top, and LC1F630 or LC1F800 3P in the middle, plus the corresponding CR1F reversing contactors. This ensures that only one contactor in the stack can close at a time — critical for reversing drives or changeover schemes where simultaneous closure would create a phase-to-phase short. ## Fit confirmation for the panel The interlock is a mechanical-only accessory — no wiring, no coil draw. It clips onto the contactor bodies in the specified vertical stack. The mounting position is fixed at three vertical units; the interlock bar physically links the contactor armatures so that only one can be in the closed state. If you are retrofitting an existing TeSys F reversing or two-speed starter, verify that the contactor frame sizes match the interlock's compatibility list: bottom position accepts LC1F185–LC1F225, top and middle accept LC1F630 or LC1F800. Mixing frame sizes outside this matrix will not align the interlock mechanism.","metaTitle":"Schneider LA9FL4L4G TeSys F Mechanical Interlock, Obsolete","metaDescription":"LA9FL4L4G is a TeSys F mechanical interlock for 3 vertical contactors. Obsolete status; sourced to order against RFQ. Interlocks LC1F185-LC1F800 and CR1F630 contactors.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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 LC1F185...LC1F225 3P or 4P Bottom CR1F185 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/744ba1524f7a4cedf58ce8480a47f510.pdf","sourceUrl":"https://www.se.com/sg/en/product/LA9FL4L4G/tesys-f-mechanical-interlock-for-3-vertical-contactors/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LA9FL4L4G/alternatives.json"},"ai":{"faq":[{"question":"What contactors does the LA9FL4L4G interlock?","answer":"It interlocks bottom-position LC1F185 through LC1F225 3P or 4P, top-position LC1F630 or LC1F800 3P, and middle-position LC1F630 or LC1F800 3P, plus the corresponding CR1F reversing contactors. All in a three-vertical stack."},{"question":"How do I source the LA9FL4L4G now that it is obsolete?","answer":"Through surplus or broker channels. Submit an RFQ with your quantity and target delivery window, and we will search our network for verified inventory of this TeSys F mechanical interlock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9FL4L4G","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/LA9FL4L4G 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}}