{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FK033","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FK033","canonicalUrl":"https://aoctrl.com/schneider/LX4FK033","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FK033","rawCanonicalId":null},"summary":{"shortDescription":"TeSys LX4FK033, contactor coil, FK series, 33 V DC, DC low consumption, without built-in suppressor module.","salesMarkdown":"## Part Identity and Sourcing Status The LX4FK033 is a replacement contactor coil from the TeSys range, designed for FK-series contactors. Its control circuit is a 33 V DC low-consumption type, without a built-in suppressor module — meaning you need to add external flyback suppression (a diode or RC snubber) across the coil terminals if driving from a PLC output or solid-state relay that can't handle the inductive kick. ## Electrical and Timing Characteristics Operating time is 45 to 60 ms opening, 50 to 60 ms closing. That's within the typical range for a contactor coil of this size — fast enough for motor starting and general switching, but not a high-speed application. The coil draws a 0.99 Ω inrush at 20 °C, settling to 258 Ω holding at the same temperature; the low holding resistance keeps power dissipation down once the contactor is sealed in. Control voltage limits are specified: dropout occurs between 0.2 and 0.35 Uc at 55 °C (about 6.6 to 11.6 V DC), and operational pickup is guaranteed between 0.85 and 1.1 Uc at the same temperature (28 to 36.3 V DC). If your control supply sags below 28 V DC at the coil terminals, the contactor may not pull in reliably. This coil mounts directly onto the FK-series contactor's magnet system. It's a service part — you replace the coil, not the whole contactor, which is the typical approach for a Tier-1 automotive line where full part genealogy and zero-defect traceability are required. The coil itself carries no serialized traceability, so ensure your line-side replacement procedure captures the contactor's nameplate data before swapping.","metaTitle":"TeSys LX4FK033 Contactor Coil, 33 V DC, Active","metaDescription":"TeSys LX4FK033 replacement contactor coil for FK contactors. 33 V DC control, 45-60 ms operating time. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","title":"LX4FK033","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","description":"contactor coil - FK - 33 V DC","Operating time":"45...60 ms opening 50...60 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Device short name":"LX4FK","Average resistance":"0.99 Ohm inrush 68 °F (20 °C) 258 Ohm holding 68 °F (20 °C)","Control circuit type":"DC low consumption","Nbr. of units in pkg.":"1","Product or Component Type":"Contactor coil","[Uc] control circuit voltage":"33 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))","Ambient Air Temperature for Operation":"23...131 °F (-5...55 °C)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ce166b3901a2a3a0c105ac52b3389c1e.pdf","sourceUrl":"https://www.se.com/th/en/product/LX4FK033/contactor-coil-fk-33-v-dc/"},"ai":{"faq":[{"question":"What is the control voltage for LX4FK033?","answer":"33 V DC, low-consumption type. Dropout range is 0.2 to 0.35 Uc (6.6 to 11.6 V DC) at 55 °C; operational pickup is 0.85 to 1.1 Uc (28 to 36.3 V DC) at 55 °C."},{"question":"Does this coil include a built-in suppressor?","answer":"No. The coil technology is listed as 'without built-in suppressor module.' You must add external flyback suppression (diode or RC snubber) if driving from a solid-state output."},{"question":"What is the operating temperature range?","answer":"-5 to 55 °C (23 to 131 °F)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FK033","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/LX4FK033 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}