{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FF055","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FF055","canonicalUrl":"https://aoctrl.com/schneider/LX9FF055","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FF055","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F series, LX9FF055 specific contactor coil, 55 V AC 40-400 Hz low consumption, 10 Mcycles mechanical durability.","salesMarkdown":"The LX9FF055 is a specific replacement coil for TeSys F series contactors, wound for 55 V AC control circuits at 40-400 Hz. It's the low-consumption variant, meaning the hold-in power sits at 6.6-8.1 VA rather than the standard coil's draw — relevant if your control transformer is already loaded with PLCs and pilot lights. Opening time is 130 ms, closing 35 ms. Maximum operating rate is 2400 cycles per hour at 55 °C. Mechanical durability is 10 million cycles. ## Coil Electrical Characteristics The coil draws 690-855 VA inrush at 68 °F, dropping to 6.6-8.1 VA holding. Average resistance is 3.97 Ω inrush and 100.2 Ω holding at 20 °C. Control voltage limits: pick-up at 0.85-1.1 Uc, drop-out at 0.35-0.55 Uc at 55 °C. No built-in suppressor module.","metaTitle":"TeSys LX9FF055 Contactor Coil, 55 V AC, Obsolete","metaDescription":"TeSys LX9FF055 specific contactor coil, 55 V AC 40-400 Hz low consumption. Obsolete. Sourced to order against RFQ. 10 Mcycles mechanical durability.","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":"3.97 Ohm inrush 68 °F (20 °C) 100.2 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":"55 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/d1fc0ab72094766ae1162c82b628eeb1.pdf","sourceUrl":"https://www.se.com/vn/en/product/LX9FF055/tesys-f-specific-contactor-coil-55-v-ac-40-400-hz-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FF055/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to LX9FF055?","answer":"There is no pin-compatible drop-in alternative. The current TeSys F coil range uses different voltage ratings and mounting. For a 55 V AC control circuit, you would need to replace the entire contactor assembly with a modern equivalent."},{"question":"What is the LX9FF055's range and category?","answer":"It belongs to the TeSys range, category 22341-CONTACTOR,D,K,&F ACCESS. It is a specific contactor coil, not a complete contactor."},{"question":"How do I source an obsolete LX9FF055?","answer":"Through the surplus and NOS channel. Submit an RFQ for a quote on available stock. No lead time can be guaranteed, but the part is findable through independent distributors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FF055","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/LX9FF055 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}}