{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FK925","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FK925","canonicalUrl":"https://aoctrl.com/schneider/LX9FK925","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FK925","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys F series, LX9FK925 specific contactor coil, 110 V AC 40-400 Hz / 110 V DC control, 60 ms opening / 50 ms closing, low consumption type.","salesMarkdown":"## Part identity and control voltage The LX9FK925 is a specific contactor coil from the Schneider TeSys F range, designed as a replacement or build-in coil for TeSys F contactors. It accepts dual control voltage: 110 V AC across 40-400 Hz, or 110 V DC, making it usable in both AC and DC control circuits without a separate rectifier. ## Switching dynamics and thermal budget Opening time is 60 ms, closing time is 50 ms — the coil pulls in faster than it drops out, which matters for contactor sequencing in reversing or star-delta starters where overlap timing is critical. Heat dissipation runs 15 to 18.3 W once the contactor is held in. The coil resistance shifts from 24 Ω inrush to 204 Ω holding at 68 °F (20 °C), so the holding current is roughly one-eighth of the inrush — the coil's own thermal load drops significantly after pickup. Inrush power is 550 VA at 40-400 Hz (68 °F), dropping to 31 VA holding. The closed-circuit inductance is 1.1 H, which limits the AC holding current and keeps the coil from overheating on continuous duty. ## Durability and operating envelope Mechanical durability is rated at 10 million cycles — the coil itself is not the wear item in a TeSys F contactor; the main contacts and arc chambers will typically need replacement first in high-cycle applications like conveyor or pump cycling. Maximum operating rate is 3600 cycles per hour at 158 °F (70 °C). In a panel with multiple contactors ganged together, the cumulative heat from adjacent coils can push ambient above that ceiling — derate the operating rate or add ventilation if the panel runs hot. Ambient operating range is 23 to 131 °F (-5 to 55 °C). The coil's drop-out voltage band is 0.3 to 0.5 Uc at 131 °F — if the control supply sags below 33 V AC on a 110 V line, the contactor drops out, which can cause nuisance tripping in brownout conditions. ## Lifecycle and sourcing reality The LX9FK925 is marked obsolete by Schneider. No official successor order code is recorded — the TeSys F coil range has been superseded by the TeSys Deca series, but the mounting footprint and coil termination differ, so a direct drop-in replacement is not available without contactor replacement. Sourced through independent distribution channels against an RFQ. Availability is lot-specific — confirmed at quote time. The coil carries no built-in suppressor module; if the control circuit uses a PLC output or solid-state relay, an external RC snubber or flyback diode should be added across the coil to protect the switching device.","metaTitle":"Schneider LX9FK925 TeSys F Contactor Coil, 110 V AC/DC","metaDescription":"Obsolete Schneider LX9FK925 TeSys F contactor coil, 110 V AC/DC control, 60 ms open/50 ms close. Sourced to order against RFQ through independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"US10I1222341","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","Average resistance":"24 Ohm inrush 68 °F (20 °C) 204 Ohm holding 68 °F (20 °C)","Inrush power in VA":"550 VA 40...400 Hz (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","Inductance of closed circuit":"1.1 H","[Uc] control circuit voltage":"110 V AC 40...400 Hz 110 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 40...400 Hz (at 68 °F (20 °C))","Ambient Air Temperature for Operation":"23...131 °F (-5...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$323.11 – $432.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/us/en/product/LX9FK925/tesys-f-specific-contactor-coil-110-v-ac-40-400-hz-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FK925/alternatives.json"},"ai":{"faq":[{"question":"What control voltage does the LX9FK925 coil accept?","answer":"It accepts 110 V AC at 40-400 Hz or 110 V DC. The operational voltage range is 0.85 to 1.1 Uc at 131 °F (55 °C), and drop-out occurs between 0.3 and 0.5 Uc."},{"question":"What is the heat dissipation of this coil during holding?","answer":"Heat dissipation is 15 to 18.3 W once the contactor is held in. The holding power consumption drops to 31 VA (AC) versus 550 VA inrush, so the coil runs cooler after pickup."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FK925","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/LX9FK925 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}}