{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX1FK140","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX1FK140","canonicalUrl":"https://aoctrl.com/schneider/LX1FK140","factsUrl":"https://aoctrl.com/api/mcp/products/LX1FK140","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F contactor coil, LX1FK140, 277 V AC 40–400 Hz, 2200 VA inrush, 36 VA holding, no built-in suppressor module.","salesMarkdown":"The LX1FK140 is a replacement coil for the TeSys F contactor range, rated for 277 V AC control circuits at 40–400 Hz. It pulls 2200 VA inrush and settles to 36 VA holding at 20 °C. No built-in suppressor module — you'll need an external RC snubber or varistor across the coil if driving it from a PLC or solid-state output. ## Coil Performance Opening time runs 100–170 ms, closing 40–75 ms. Coil resistance measures 16.5 Ω inrush and 420 Ω holding at 20 °C; inductance of the closed circuit is 2.25 H. Control voltage limits are 0.85–1.1 Uc for operation and 0.3–0.5 Uc for dropout at 55 °C. Ambient temperature range for operation is –5 to 55 °C. ## Heat Dissipation The coil dissipates 18 W at 40–400 Hz. That heat goes into the contactor enclosure — if you're running multiple contactors in a sealed panel, account for the cumulative thermal load to stay within the ambient rating. ## Integration Note This is a TeSys F range coil — it mounts directly onto the F-frame contactor magnet assembly. No built-in suppressor means you wire the suppression externally. For AC control, a standard RC snubber across the coil terminals handles the back-EMF. If the contactor is cycled frequently, factor in the 18 W dissipation when sizing panel ventilation.","metaTitle":"TeSys LX1FK140 Contactor Coil, 277 V AC, 40–400 Hz","metaDescription":"Obsolete TeSys F contactor coil LX1FK140, 277 V AC 40–400 Hz. 2200 VA inrush, 36 VA hold. Sourced to order against RFQ. No built-in suppressor.","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":"100...170 ms opening 40...75 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"18 W 40...400 Hz","Device short name":"LX4FK","Average resistance":"16.5 Ohm inrush 68 °F (20 °C) 420 Ohm holding 68 °F (20 °C)","Inrush power in VA":"2200 VA 40...400 Hz cos phi 0.9 (at 68 °F (20 °C))","Control circuit type":"AC 40...400 Hz","Mechanical durability":"0.5 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"600 cyc/h 131 °F (55 °C)","Product or Component Type":"Contactor coil","Inductance of closed circuit":"2.25 H","[Uc] control circuit voltage":"277 V AC 40...400 Hz","Control circuit voltage limits":"Operational 0.85...1.1 Uc 40...400 Hz 131 °F (55 °C)) Drop-out 0.3...0.5 Uc 40...400 Hz 131 °F (55 °C))","Hold-in power consumption in VA":"36 VA 40...400 Hz cos phi 0.9 (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/cbf9cdba65eafc2ec9ae6d337a85369f.pdf","sourceUrl":"https://www.se.com/th/en/product/LX1FK140/contactor-coil-tesys-f-lx1fk-277-v-ac-40-400hz/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX1FK140/alternatives.json"},"ai":{"faq":[{"question":"Does the LX1FK140 have a built-in coil suppression module?","answer":"No — the coil technology is listed as 'without built-in suppressor module.' You must add an external RC snubber or varistor for back-EMF protection, especially when driven by electronic outputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX1FK140","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/LX1FK140 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}}