{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LA9D09978","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LA9D09978","canonicalUrl":"https://aoctrl.com/schneider/LA9D09978","factsUrl":"https://aoctrl.com/api/mcp/products/LA9D09978","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys Deca LA9D09978 interlock for contactor 9-25 A, mechanical interlock, active lifecycle.","salesMarkdown":"## Mechanical Interlock for TeSys Deca Contactors The LA9D09978 is a mechanical interlock for TeSys Deca contactors in the 9-25 A range, part of Schneider Electric's motor control accessories line. It physically prevents two contactors from closing simultaneously, a requirement for reversing or star-delta motor starters where a cross-conduction short would occur if both main contacts engaged at once. ## Integration with TeSys Deca Contactors Mounts directly onto the contactor body without additional DIN-rail space. The interlock linkage couples the two contactor armatures so that the mechanical force of one closing blocks the other's motion. No wiring required — purely mechanical, so it adds zero cycle time to the PLC scan.","metaTitle":"Schneider LA9D09978 TeSys Deca Interlock, Active","metaDescription":"Schneider Electric LA9D09978 interlock for TeSys Deca contactor 9-25 A. Active lifecycle, sourced to order. Request a quote for LA9D09978 pricing and lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Control Accessories"],"specifications":{"title":"LA9D09978","description":"Interlock for contactor 9-25","lifecycle_stage":"current","Range of product":"TeSys Deca"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$24.99 – $43.20","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"{'url': 'https://www.se.com/th/en/product/download-pdf/LA9D09978?filename=Schneider+Electric_Schneider-Legacy-Products_LA9D09978.pdf', 'path_name': '10e1d4147fd488f684e0ab055f4b26d4.pdf', 'path_url': 'https://s3.lax.sharktech.net/viassion/datasheets/schneider_electric/10e1d4147fd488f684e0ab055f4b26d4.pdf', 'status': 1}","sourceUrl":"https://www.se.com/nl/en/product/LA9D09978/interlock-for-contactor-925/"},"ai":{"faq":[{"question":"How do I get current pricing and lead time for LA9D09978?","answer":"Pricing and lead time are confirmed against your specific BOM quantity at RFQ. Submit a request through the storefront for a current quote."},{"question":"What is the range of product for LA9D09978?","answer":"It belongs to the TeSys Deca range, designed for contactors rated 9-25 A. The interlock is specific to this series and frame size."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LA9D09978","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/LA9D09978 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}}