{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX1FG850","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX1FG850","canonicalUrl":"https://aoctrl.com/schneider/LX1FG850","factsUrl":"https://aoctrl.com/api/mcp/products/LX1FG850","rawCanonicalId":null},"summary":{"shortDescription":"TeSys F, contactor coil, LX1FG850, 1000 V AC 60 Hz, 18-24 W heat dissipation, 10 Mcycles mechanical durability.","salesMarkdown":"The LX1FG850 is a TeSys F contactor coil — the solenoid that pulls in the main power contacts on a TeSys F contactor. It's rated for 1000 V AC 60 Hz control circuits, with an inrush of 970 VA at 60 Hz and a hold-in draw of 66 VA. Operating time runs 20 to 35 ms closing, 7 to 15 ms opening. The 1000 V AC 60 Hz control voltage is specific — this isn't a 24 VDC or 120 V coil. It's built for high-voltage AC control schemes, common in older or heavy industrial installations. The 18 to 24 W heat dissipation at 60 Hz means the coil generates noticeable heat; panel ventilation or spacing from heat-sensitive components matters. Drop-out voltage range is 0.35 to 0.55 Uc, operational range 0.85 to 1.1 Uc at 55 °C — so it holds in reliably down to 850 V AC and drops out below 550 V AC. That's a wide hysteresis, which helps prevent chatter on a sagging line. ## Integration notes This coil is a direct replacement for the TeSys F contactor range. No built-in suppressor module — if your circuit needs flyback suppression (and it should on a 1000 V AC coil driving an inductive load), you'll add an external RC snubber or varistor across the coil terminals. The average resistance is 249 ohms at 20 °C, inductance of the closed circuit is 36.6 H — that's a high inductance, so the flyback voltage spike on de-energization is substantial. Suppression isn't optional if you're switching it with a PLC output or a solid-state relay.","metaTitle":"TeSys LX1FG850 Contactor Coil, 1000 V AC 60 Hz, Obsolete","metaDescription":"LX1FG850 is a TeSys F contactor coil rated 1000 V AC 60 Hz. Now obsolete. Sourced to order against RFQ. Operating time 20-35 ms close, 7-15 ms open.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","Operating time":"20...35 ms closing 7...15 ms opening","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"18...24 W 60 Hz","Device short name":"LX1FG","Average resistance":"249 Ohm 68 °F (20 °C)","Inrush power in VA":"970 VA 60 Hz cos phi 0.3 (at 68 °F (20 °C))","Control circuit type":"AC 60 Hz","Mechanical durability":"10 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"2400 cyc/h 131 °F (55 °C)","Product or Component Type":"Contactor coil","Inductance of closed circuit":"36.6 H","[Uc] control circuit voltage":"1000 V AC 60 Hz","Control circuit voltage limits":"Drop-out 0.35...0.55 Uc 50/60 Hz 131 °F (55 °C)) Operational 0.85...1.1 Uc 50/60 Hz 131 °F (55 °C))","Hold-in power consumption in VA":"66 VA 60 Hz cos phi 0.3 (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/180ec9652231bc9cab491de5eea1ce0e.pdf","sourceUrl":"https://www.se.com/th/en/product/LX1FG850/tesys-f-contactor-coil-lx1fg-1000-v-ac-60-hz/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX1FG850/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to the LX1FG850?","answer":"No official replacement has been published. For a TeSys F contactor coil at 1000 V AC 60 Hz, you would need to source the exact LX1FG850 through surplus or broker channels, or re-engineer the control circuit for a different coil voltage."},{"question":"What is the operating temperature range for this coil?","answer":"The ambient air temperature for operation is -5 to 55 °C (23 to 131 °F)."},{"question":"Does this coil include a built-in suppressor module?","answer":"No. The coil technology is listed as without built-in suppressor module. External suppression is required for inductive load switching."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX1FG850","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/LX1FG850 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}}