{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FL912","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FL912","canonicalUrl":"https://aoctrl.com/schneider/LX9FL912","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FL912","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F specific contactor coil, LX9FL912, 48 V AC/DC control, 22.8...27.8 W heat dissipation, 60 ms opening / 20 ms closing.","salesMarkdown":"## Coil swap constraints for the LX9FL912 The LX9FL912 is a specific contactor coil in the TeSys F range, rated for 48 V AC/DC control. It pulls 733 W inrush at 20 °C and settles to 48 W hold-in, so the control transformer needs headroom for that inrush spike — don't share the same 48 V supply with sensitive PLC outputs without a separate contactor driver. Opening takes 60 ms, closing 20 ms. That asymmetry matters if you're sequencing contactors for motor reversal or bypass — the slower dropout means you need a longer dead time between open and close commands to avoid a phase-to-phase short. No built-in suppressor module on this coil. You'll need an external RC snubber (for AC) or a free-wheeling diode (for DC) across the coil terminals, or the back-EMF will take out the PLC output card or relay driving it. The coil inductance is 0.2 H when closed, which stores enough energy to arc a relay contact on dropout. ## Panel thermal and mounting notes Heat dissipation runs 22.8 to 27.8 W depending on control voltage and temperature. That's not trivial — in a dense TeSys F starter stack, you need to account for this in the enclosure thermal calculation. At 1800 cycles/hour maximum at 70 °C, the coil is rated for sustained high-duty applications like conveyor start-stop sequences. The dropout voltage window is 0.3 to 0.5 Uc at 55 °C, meaning the coil will reliably drop out between 14.4 and 24 V on a 48 V system — no risk of the contactor chattering on a sagging control bus. Mechanical durability is rated at 5 million cycles. That's the coil itself — the contactor's electrical life will be lower under load, but the coil won't be the wear-out item in most applications.","metaTitle":"Schneider TeSys LX9FL912 specific contactor coil, 48 V AC/DC","metaDescription":"Active-production TeSys F specific contactor coil, 48 V AC/DC control, 22.8-27.8 W heat dissipation, 60 ms open / 20 ms close. Sourced to order.","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 20 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"22.8...27.8 W","Device short name":"LX9FL","Inrush power in W":"733 W 68 °F (20 °C))","Control circuit type":"AC 40...400 Hz low consumption DC low consumption","Mechanical durability":"5 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"1800 cyc/h 158 °F (70 °C)","Product or Component Type":"Specific contactor coil","Inductance of closed circuit":"0.2 H","[Uc] control circuit voltage":"48 V DC 48 V AC","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 W":"48 W 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/3c20e90eb60a7ea341f462a8d16a8ee4.pdf","sourceUrl":"https://www.se.com/th/en/product/LX9FL912/tesys-f-specific-contactor-coil/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FL912/alternatives.json"},"ai":{"faq":[{"question":"What control voltage does the LX9FL912 coil use?","answer":"It is rated for 48 V AC or 48 V DC control. The operational voltage limits are 0.85 to 1.1 Uc (40.8 to 52.8 V) at 55 °C, and dropout occurs between 0.3 and 0.5 Uc (14.4 to 24 V)."},{"question":"Does the LX9FL912 include a built-in surge suppressor?","answer":"No. The coil technology is listed as 'without built-in suppressor module'. You must add an external RC snubber for AC applications or a free-wheeling diode for DC to suppress the inductive kickback."},{"question":"What is the heat dissipation of the LX9FL912 coil?","answer":"It dissipates between 22.8 and 27.8 W depending on operating conditions. Inrush power is 733 W at 20 °C, and hold-in power is 48 W at 20 °C."},{"question":"What is the operating time of the LX9FL912?","answer":"Opening time is 60 ms, closing time is 20 ms. Maximum operating rate is 1800 cycles per hour at 70 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FL912","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/LX9FL912 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}}