{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FF350","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FF350","canonicalUrl":"https://aoctrl.com/schneider/LX9FF350","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FF350","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F LX9FF350, specific contactor coil, 350 V AC 40..400 Hz low consumption, obsolete.","salesMarkdown":"The LX9FF350 is a specific contactor coil from the Schneider Electric TeSys F range, designed as a replacement or spare coil for TeSys F contactors. It operates on a 350 V AC control circuit at 40 to 400 Hz and is classed as a low-consumption coil, drawing 690 to 855 VA inrush and 6.6 to 8.1 VA holding at 68 °F (20 °C). The coil's opening time is 130 ms and closing time is 35 ms, with a maximum operating rate of 2400 cycles per hour at 131 °F (55 °C). Mechanical durability is rated at 10 million cycles, and heat dissipation sits between 5.9 and 7.2 W. ## Control voltage limits and coil characteristics The control circuit voltage limits are defined at 131 °F (55 °C): operational range is 0.85 to 1.1 times Uc (298 to 385 V AC), and dropout occurs between 0.35 and 0.55 Uc (123 to 193 V AC). This means the coil will reliably pick up at 298 V and must see voltage drop below 193 V to release, which is typical for AC-operated contactor coils in industrial panels. Average coil resistance is 139.7 ohms inrush and 5139 ohms holding at 68 °F (20 °C). The coil uses AC technology 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. ## Deployment context As a TeSys F contactor coil, this part mounts directly onto the corresponding TeSys F contactor frame inside a motor control center or panel enclosure. The coil's 350 V AC control voltage is common in European and some Asian industrial installations where the control transformer secondary is 400 V or 415 V, stepped down through a tap.","metaTitle":"TeSys LX9FF350 Contactor Coil, 350 V AC, Obsolete","metaDescription":"TeSys F specific contactor coil, 350 V AC 40-400 Hz low consumption. Obsolete per manufacturer. Sourced to order against RFQ. Mechanical durability 10 Mcycles.","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":"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":"139.7 Ohm inrush 68 °F (20 °C) 5139 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":"350 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/98220290f24bc1b56ee221829e6f3441.pdf","sourceUrl":"https://www.se.com/th/en/product/LX9FF350/tesys-f-specific-contactor-coil-350-v-ac-40-400-hz-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FF350/alternatives.json"},"ai":{"faq":[{"question":"What replaces the LX9FF350?","answer":"No official replacement order code is provided in the manufacturer's lifecycle record. For an exact-fit replacement, the only option is to source from surplus or broker channels against an RFQ."},{"question":"What is the control voltage range for reliable operation?","answer":"At 131 °F (55 °C), the operational voltage range is 0.85 to 1.1 times Uc (298 to 385 V AC). Dropout occurs between 0.35 and 0.55 Uc (123 to 193 V AC)."},{"question":"Does this coil include a built-in surge suppressor?","answer":"No, the coil technology is listed as without built-in suppressor module. An external RC snubber or varistor should be added if surge suppression is required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FF350","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/LX9FF350 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}}