{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FF140","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FF140","canonicalUrl":"https://aoctrl.com/schneider/LX9FF140","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FF140","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F specific contactor coil, LX9FF140, 140 V AC 40-400 Hz low consumption, obsolete.","salesMarkdown":"The LX9FF140 is a specific contactor coil from the Schneider Electric TeSys F range, designed to operate a TeSys F contactor. It is a low-consumption AC coil rated for 140 V AC at 40-400 Hz, drawing 690-855 VA inrush and 6.6-8.1 VA holding at 20 °C. The coil resistance measures 23.46 Ω inrush and 937.5 Ω holding at the same temperature. This coil is built without a built-in suppressor module, so if your application requires surge suppression, you will need to add an external RC snubber or varistor across the coil terminals. Because this is a specific coil for the TeSys F contactor family, there is no direct pin-for-pin replacement from Schneider Electric that carries the same order code. If you are maintaining an existing panel, the best path is to source the LX9FF140 as a service part. For new designs, consider the current TeSys F coil offering — check the control voltage and mounting interface against your contactor frame. The 140 V AC control voltage at 40-400 Hz means this coil is intended for AC control circuits, not DC. The operational voltage limits are 0.85-1.1 Uc at 55 °C, so the coil will pick up reliably at 119 V AC and must not see more than 154 V AC. Drop-out occurs between 0.35-0.55 Uc (49-77 V AC), which gives a reasonable hold-in margin against voltage sags. Heat dissipation runs 5.9-7.2 W, which is modest but should be considered when grouping multiple coils in a confined enclosure — derating may apply above 40 °C.","metaTitle":"TeSys LX9FF140 Contactor Coil, 140 V AC, Obsolete","metaDescription":"TeSys LX9FF140 specific contactor coil, 140 V AC 40-400 Hz low consumption. Obsolete — sourced to order against RFQ. 130 ms open / 35 ms close, 10 Mcycles mechanical.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","Operating time":"130 ms opening 35 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"5.9...7.2 W","Device short name":"LX9FF","Average resistance":"23.46 Ohm inrush 68 °F (20 °C) 937.5 Ohm holding 68 °F (20 °C)","Inrush power in VA":"690...855 VA 40...400 Hz (at 68 °F (20 °C))","Control circuit type":"AC 40...400 Hz low consumption","Mechanical durability":"10 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"2400 cyc/h 131 °F (55 °C)","Product or Component Type":"Specific contactor coil","[Uc] control circuit voltage":"140 V AC 40...400 Hz","Control circuit voltage limits":"Operational 0.85...1.1 Uc 131 °F (55 °C)) Drop-out 0.35...0.55 Uc 131 °F (55 °C))","Hold-in power consumption in VA":"6.6...8.1 VA 40...400 Hz (at 68 °F (20 °C))","Ambient Air Temperature for Operation":"23...131 °F (-5...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b3b49f4989d3478ee03918fa4e05f474.pdf","sourceUrl":"https://www.se.com/vn/en/product/LX9FF140/tesys-f-specific-contactor-coil-140-v-ac-40-400-hz-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FF140/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to the LX9FF140?","answer":"There is no direct pin-compatible replacement with the same order code. For the TeSys F contactor family, you would need to select a current-production coil with the same control voltage (140 V AC) and verify it matches the contactor frame. Sourcing the LX9FF140 as a service part is the most reliable path for existing installations."},{"question":"What is the operating time of this coil?","answer":"The LX9FF140 opens in 130 ms and closes in 35 ms. The maximum operating rate is 2400 cycles per hour at 55 °C."},{"question":"Does this coil include a built-in suppressor?","answer":"No. The LX9FF140 is supplied without a built-in suppressor module. For inductive load switching, an external RC snubber or varistor should be added across the coil terminals to limit voltage spikes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FF140","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/LX9FF140 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}}