{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX9FH0422","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX9FH0422","canonicalUrl":"https://aoctrl.com/schneider/LX9FH0422","factsUrl":"https://aoctrl.com/api/mcp/products/LX9FH0422","rawCanonicalId":null},"summary":{"shortDescription":"TeSys F, specific contactor coil, LX9FH0422, 42 V AC 40...400 Hz low consumption, obsolete.","salesMarkdown":"The LX9FH0422 is a specific contactor coil from the TeSys F range, designed for 42 V AC control circuits at 40...400 Hz. It's the replacement coil for TeSys F contactors that use this low-consumption AC coil platform — not a universal fit, but the exact factory part for that frame. Coil pull-in draws 560...660 VA inrush, then drops to 8...10 VA holding. That's a standard AC magnet coil curve — the inrush surge is brief, but your control transformer needs to handle it without dipping below 0.85 Uc (35.7 V) at 131 °F (55 °C). Drop-out range is 0.35...0.55 Uc (14.7...23.1 V). Opening time is 25 ms, closing 45 ms. That's a solid 1 Hz duty cycle — fine for most conveyor or pump cycling, but not for high-speed pick-and-place. If you need a drop-in replacement, the closest path is to identify the TeSys F contactor frame this coil served and select the current-production coil variant for that frame at 42 V AC. That's a cross-reference exercise best done with the contactor's full catalog number in hand. ## Installation notes This coil has no built-in suppressor module. On an AC coil, that means you'll want an external RC snubber or varistor across the coil terminals if the contactor is switched by a PLC output or solid-state relay — otherwise the inductive kick can weld relay contacts or damage the driver. Standard practice for TeSys F is a separate surge suppressor in the control cabinet. Average coil resistance is 2.30 Ω inrush and 50 Ω holding at 68 °F (20 °C). Heat dissipation runs 8.4...10.4 W. That's not trivial in a sealed enclosure — account for the thermal load if the contactor cycles continuously near the 3600 cyc/h limit. Ambient operating temperature is -5...55 °C (23...131 °F). The coil is rated for AC control circuits only at 40...400 Hz — do not apply DC voltage or 50/60 Hz-only transformers without verifying the frequency range matches your supply.","metaTitle":"TeSys LX9FH0422 Contactor Coil, 42 V AC, Obsolete","metaDescription":"TeSys F specific contactor coil, 42 V AC 40-400 Hz low consumption. Obsolete status; sourced to order against RFQ. 25 ms opening, 45 ms closing. No built-in suppressor module.","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":"25 ms opening 45 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Heat dissipation":"8.4...10.4 W","Device short name":"LX9FH","Average resistance":"2.30 Ohm inrush 68 °F (20 °C) 50 Ohm holding 68 °F (20 °C)","Inrush power in VA":"560...660 VA 40...400 Hz (at 68 °F (20 °C))","Control circuit type":"AC 40...400 Hz low consumption","Mechanical durability":"10 Mcycles","Nbr. of units in pkg.":"1","Maximum operating rate":"3600 cyc/h 131 °F (55 °C)","Product or Component Type":"Specific contactor coil","[Uc] control circuit voltage":"42 V AC 40...400 Hz","Control circuit voltage limits":"Operational 0.85...1.1 Uc 131 °F (55 °C)) Drop-out 0.35...0.55 Uc 131 °F (55 °C))","Hold-in power consumption in VA":"8...10 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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0ca0b63a4b34f487dd611a6cacb6adfe.pdf","sourceUrl":"https://www.se.com/ie/en/product/LX9FH0422/tesys-f-specific-contactor-coil-42-v-ac-40-400-hz-low-consumption/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX9FH0422/alternatives.json"},"ai":{"faq":[{"question":"What is the closest replacement for the LX9FH0422?","answer":"No official successor order code is listed. The practical replacement path is to identify the TeSys F contactor frame this coil was designed for and select the current-production 42 V AC coil for that same frame. That requires the contactor's full catalog number to cross-reference correctly."},{"question":"What voltage and frequency does this coil operate on?","answer":"The LX9FH0422 is rated for 42 V AC control circuits at 40...400 Hz. It is a low-consumption AC coil — not compatible with DC supplies. Operational limits are 0.85...1.1 Uc (35.7...46.2 V) at 131 °F (55 °C), with drop-out at 0.35...0.55 Uc (14.7...23.1 V)."},{"question":"Does this coil include a built-in surge suppressor?","answer":"No. The coil is specified without a built-in suppressor module. For inductive-load switching, an external RC snubber or varistor should be added across the coil terminals, especially when driven by a PLC or solid-state output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX9FH0422","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/LX9FH0422 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}}