{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FK125","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FK125","canonicalUrl":"https://aoctrl.com/schneider/LX4FK125","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FK125","rawCanonicalId":null},"summary":{"shortDescription":"Square D LX4FK125 contactor coil, TeSys range, 125 V DC low-consumption control circuit, 45–60 ms opening / 50–60 ms closing, 10 Mcycles mechanical endurance.","salesMarkdown":"## Contactor coil for TeSys frame The Square D LX4FK125 is a replacement coil for TeSys series contactors. It operates on a 125 V DC control circuit with low-consumption DC coil technology — no built-in suppressor module, so external free-wheeling diode or RC snubber must be added across the coil for DC switching applications. Rated opening time 45–60 ms, closing 50–60 ms. Mechanical durability rated at 10 Mcycles; maximum operating rate 2400 cycles per hour at 131 °F (55 °C). Inrush power 1100 W at 68 °F (20 °C), holding power 6 W — average inrush resistance 15 Ω, holding 2930 Ω. Inductance of the closed circuit is 400 H. Drop-out threshold is 0.2–0.35 Uc at 131 °F; operational range 0.85–1.1 Uc in the same temperature. Ambient operating range -5 to 55 °C.","metaTitle":"Square D LX4FK125 Contactor Coil, 125 V DC, TeSys","metaDescription":"Square D LX4FK125 contactor coil for TeSys range, 125 V DC control circuit. Now obsolete — source through surplus channels. Place RFQ for availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Range":"TeSys","Category":"US10I1222341","Operating time":"45...60 ms opening 50...60 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Device short name":"LX4FK","Inrush power in W":"1100 W 68 °F (20 °C))","Average resistance":"15 Ohm inrush 68 °F (20 °C) 2930 Ohm holding 68 °F (20 °C)","Control circuit type":"DC 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":"Contactor coil","Inductance of closed circuit":"400 H","[Uc] control circuit voltage":"125 V DC","Control circuit voltage limits":"Drop-out 0.2...0.35 Uc 131 °F (55 °C)) Operational 0.85...1.1 Uc 131 °F (55 °C))","Hold-in power consumption in W":"6 W 68 °F (20 °C)","Ambient Air Temperature for Operation":"23...131 °F (-5...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$364.49 – $660.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/67ad58e9917ccffda011e4870c62171b.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/LX4FK125/alternatives.json"},"ai":{"faq":[{"question":"What is the TeSys range?","answer":"The LX4FK125 is part of the Square D / Telemecanique TeSys range of contactors and accessories, designed for motor control and switching applications."},{"question":"What does the category US10I1222341 mean?","answer":"US10I1222341 is an internal classification code used for cataloging and logistics. It does not affect electrical compatibility or fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FK125","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/LX4FK125 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}