{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FK919","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FK919","canonicalUrl":"https://aoctrl.com/schneider/LX9FK919","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FK919","rawCanonicalId":null},"summary":{"shortDescription":"TeSys F specific contactor coil, LX9FK919, 50-56 V DC low consumption, 60 ms opening / 50 ms closing, 10 Mcycles mechanical durability.","salesMarkdown":"The LX9FK919 is a specific contactor coil from the TeSys F range, designed to replace the coil assembly in TeSys F contactors. It operates on a 50-56 V DC control circuit and is classified as low consumption — drawing 550 VA inrush at 20 °C and holding at 31 VA. The coil has no built-in suppressor module, so an external RC snubber or varistor must be added across the coil terminals if the control circuit drives inductive loads that could generate back-EMF. Heat dissipation runs 15-18.3 W — enough to consider ventilation if the contactor is enclosed in a small panel with other heat sources. ## Control voltage limits and temperature range The coil holds in at 50-56 V DC nominal. Operational voltage range is 0.85 to 1.1 times Uc at 55 °C — so it picks up reliably between about 42.5 V and 61.6 V DC. Drop-out occurs between 0.3 and 0.5 Uc at 55 °C, meaning the contactor drops out when the control voltage falls below roughly 15-25 V DC. Ambient operating temperature is -5 to 55 °C.","metaTitle":"TeSys LX9FK919 specific contactor coil, 50-56 V DC, obsolete","metaDescription":"TeSys F specific contactor coil LX9FK919, 50-56 V DC low consumption. Obsolete status — sourced to order against RFQ. 60 ms opening, 50 ms closing, 10 Mcycles mechanical durability","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"15...18.3 W","Device short name":"LX9FK","Inrush power in VA":"550 VA (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","[Uc] control circuit voltage":"50...56 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":"31 VA (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/8f1c33c55751fbcb8e6b09f0306032d2.pdf","sourceUrl":"https://www.se.com/th/en/product/LX9FK919/specific-contactor-coil-tesys-f-50-56-v-dc-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FK919/alternatives.json"},"ai":{"faq":[{"question":"What is the control voltage for LX9FK919?","answer":"50-56 V DC. Operational range is 0.85-1.1 Uc at 55 °C (about 42.5-61.6 V DC). Drop-out occurs at 0.3-0.5 Uc at 55 °C (about 15-25 V DC)."},{"question":"Does this coil have a built-in suppressor?","answer":"No. The coil technology is listed as without built-in suppressor module. An external RC snubber or varistor must be added across the coil terminals for inductive load switching."},{"question":"What is the operating temperature range?","answer":"-5 to 55 °C ambient air temperature for operation."},{"question":"How do I source this obsolete part?","answer":"Through surplus or broker channels. Submit an RFQ and we will check independent distribution inventory for available stock."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FK919","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/LX9FK919 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}}