{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FK912","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FK912","canonicalUrl":"https://aoctrl.com/schneider/LX9FK912","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FK912","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F, specific contactor coil LX9FK912, 24 V DC / 27-29 V AC 50/60 Hz, 60 ms opening, 20 ms closing.","salesMarkdown":"## Coil specs for the panel builder The LX9FK912 is a TeSys F specific contactor coil — the replacement or spare coil for a TeSys F contactor frame. It accepts a dual control voltage: 24 V DC and 27-29 V AC at 50/60 Hz, so one coil covers both a 24 V DC control bus and a 24 V AC supply (the AC range sits slightly higher due to the rectified waveform). Opening time is 60 ms, closing time 20 ms — the coil pulls in fast and drops out with a deliberate delay, which matters for coordinating with upstream protection or PLC scan cycles. Heat dissipation runs 15-18.3 W, so account for that in a dense DIN-rail enclosure; adjacent components need breathing room or forced convection. The coil has no built-in suppressor module. On a DC control circuit, you will want a free-wheeling diode or varistor across the coil terminals to clamp the inductive kickback — otherwise the back-EMF can couple noise into nearby electronics or damage the PLC output driving it. ## Control voltage limits and drop-out behaviour Operational voltage range is 0.85 to 1.1 Uc at 131 °F (55 °C) — meaning the coil holds in reliably down to about 20.4 V DC and up to 26.4 V DC. Drop-out occurs between 0.3 and 0.5 Uc, so the contactor releases cleanly when the control voltage falls below roughly 7-12 V DC. This gives a predictable undervoltage release characteristic for safety circuits. Hold-in power consumption is 29 W at 68 °F (20 °C), with an inrush of 470 W at the same temperature. The inrush spike is short — the inductance of the closed circuit is 0.22 H, which limits the steady-state current once the armature seats.","metaTitle":"Schneider TeSys LX9FK912 specific contactor coil, 24 V DC /","metaDescription":"Active TeSys F specific contactor coil. Dual-voltage coil: 24 V DC and 27-29 V AC 50/60 Hz. 60 ms opening, 20 ms closing. 15-18.3 W heat dissipation. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"US10I1222341","Operating time":"60 ms opening 20 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"15...18.3 W","Device short name":"LX9FK","Inrush power in W":"470 W 68 °F (20 °C))","Control circuit type":"AC 40...400 Hz low consumption DC low consumption","Mechanical durability":"10 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"3600 cyc/h 158 °F (70 °C)","Product or Component Type":"Specific contactor coil","Inductance of closed circuit":"0.22 H","[Uc] control circuit voltage":"24 V DC 27...29 V AC 50/60 Hz","Control circuit voltage limits":"Operational 0.85...1.1 Uc 131 °F (55 °C)) Drop-out 0.3...0.5 Uc 131 °F (55 °C))","Hold-in power consumption in W":"29 W 68 °F (20 °C)","Ambient Air Temperature for Operation":"23...131 °F (-5...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$360.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/342b5f69ac6546080c97afcc51f27a62.pdf","sourceUrl":"https://www.se.com/us/en/product/LX9FK912/tesys-f-specific-contactor-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FK912/alternatives.json"},"ai":{"faq":[{"question":"What is LX9FK912's listed range and category?","answer":"The LX9FK912 belongs to the TeSys range, with the internal category code US10I1222341. It is a specific contactor coil for the TeSys F contactor frame."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FK912","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/LX9FK912 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}}