{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9FK4H4G","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9FK4H4G","canonicalUrl":"https://aoctrl.com/schneider/LA9FK4H4G","factsUrl":"https://aoctrl.com/api/mcp/products/LA9FK4H4G","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F, LA9FK4H4G, mechanical interlock for 3 vertical contactors, LC1F185–LC1F500.","salesMarkdown":"The LA9FK4H4G is a mechanical interlock from the TeSys F range, designed to prevent simultaneous closure of three vertically mounted contactors. It physically blocks the armature of one contactor when another is engaged, which is essential for reversing drives, star-delta starters, or any circuit where two contactors must never close at the same time. It interlocks contactors from the LC1F185 through LC1F500 range, including 2-, 3-, and 4-pole versions and the CR1F reversing contactor variants. ## Integration notes Mounts directly between the contactors in the vertical stack. No extra wiring — the interlock is purely mechanical, so it adds no control-circuit load or voltage drop. Verify the contactor order: bottom position takes the smallest frame (LC1F185–LC1F225), middle takes the mid frame (LC1F265–LC1F330), top takes the largest (LC1F500).","metaTitle":"Schneider TeSys LA9FK4H4G Mechanical Interlock, 3 Vertical C","metaDescription":"Active TeSys F mechanical interlock LA9FK4H4G for 3 vertical contactors LC1F185 to LC1F500. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"Range":"TeSys","title":"LA9FK4H4G","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 LC1F185...LC1F225 3P or 4P Bottom CR1F185 3P or 4P Middle LC1F265...LC1F330 3P or 4P Middle CR1F265 3P or 4P Top LC1F500 2P or 3P or 4P Top CR1F500 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/2b10f8491f67d5fce1f5eec69ec4dc20.pdf","sourceUrl":"https://www.se.com/nl/en/product/LA9FK4H4G/tesys-f-mechanical-interlock-for-3-vertical-contactors/"},"ai":{"faq":[{"question":"What contactors does this interlock work with?","answer":"It interlocks LC1F185 through LC1F500 contactors (2-, 3-, and 4-pole) and CR1F reversing contactors in the same frame range. The three contactors must be mounted vertically in a specific order by frame size."},{"question":"What is the mounting position for this interlock?","answer":"The mounting position is 3 vertical — the three contactors are stacked one above the other, not side by side."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9FK4H4G","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/LA9FK4H4G 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}}