{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FJ937","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FJ937","canonicalUrl":"https://aoctrl.com/schneider/LX9FJ937","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FJ937","rawCanonicalId":null},"summary":{"shortDescription":"TeSys F, specific contactor coil, 440 V AC 40...400 Hz low consumption, LX9FJ937.","salesMarkdown":"The LX9FJ937 is a specific contactor coil from the TeSys F range, designed to operate a TeSys F contactor at 440 V AC (40–400 Hz) or 440 V DC with low consumption. It pulls in at 500 VA inrush and holds at 23 VA, with a closed-circuit inductance of 19 H. Opening time is 60 ms, closing 50 ms — figures that matter when coordinating contactor timing in a motor starter or transfer scheme. The control circuit accepts 440 V AC across 40–400 Hz or 440 V DC, with operational limits of 0.85–1.1 Uc at 55 °C and drop-out between 0.3–0.5 Uc. That drop-out range is wide enough to ensure the contactor releases cleanly on a sagging control supply — important for undervoltage protection schemes. The coil draws 386 Ω inrush and 3690 Ω holding at 20 °C, so verify your control transformer sizing: the inrush VA (500 VA) is the peak load, not the steady-state draw. Heat dissipation runs 11.4–13.9 W depending on control voltage and duty. In a densely packed panel, that heat adds up — allow ventilation or spacing around the contactor if multiple coils are energized continuously. The coil comes without a built-in suppressor module. If your control circuit uses solid-state outputs or a PLC driving the contactor, add an external RC snubber or varistor across the coil to suppress the inductive kick on de-energization. ## Where it belongs in the panel This coil mounts onto a TeSys F contactor frame — it is the interchangeable coil that lets you field-change the control voltage without replacing the whole contactor. No wiring changes at the power terminals, just the control leads to the coil.","metaTitle":"TeSys LX9FJ937 Contactor Coil, 440 V AC/DC, Obsolete","metaDescription":"TeSys F specific contactor coil LX9FJ937, 440 V AC 40-400 Hz / DC low consumption. Obsolete — sourced to order against RFQ. 60 ms opening, 50 ms closing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"22341-CONTACTOR,D,K,&F ACCESS","Operating time":"60 ms opening 50 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"11.4...13.9 W","Device short name":"LX9FJ","Average resistance":"386 Ohm inrush 68 °F (20 °C) 3690 Ohm holding 68 °F (20 °C)","Inrush power in VA":"500 VA 40...400 Hz (at 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":"19 H","[Uc] control circuit voltage":"440 V AC 40...400 Hz 440 V DC","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 VA":"23 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/9531ee3d17606d523f3efdc224ca18c0.pdf","sourceUrl":"https://www.se.com/vn/en/product/LX9FJ937/tesys-f-specific-contactor-coil-440-v-ac-40-400-hz-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FJ937/alternatives.json"},"ai":{"faq":[{"question":"What is the control voltage for this coil?","answer":"440 V AC at 40–400 Hz or 440 V DC. The operational limits are 0.85–1.1 Uc at 55 °C, and drop-out occurs between 0.3–0.5 Uc."},{"question":"Does this coil include a built-in suppressor?","answer":"No. The coil technology is listed as without built-in suppressor module. An external RC snubber or varistor is recommended when driven by solid-state outputs."},{"question":"What are the switching times for the LX9FJ937?","answer":"Opening time is 60 ms, closing time is 50 ms. These are the mechanical operating times of the coil itself."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FJ937","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/LX9FJ937 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}}