{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FF055","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FF055","canonicalUrl":"https://aoctrl.com/schneider/LX4FF055","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FF055","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys LX4FF055 contactor coil, 55 V DC, DC low consumption, 30-40 ms closing / 30-50 ms opening, without built-in suppressor module.","salesMarkdown":"The Schneider Electric TeSys LX4FF055 is a DC low-consumption contactor coil rated at 55 V DC control voltage, designed to replace or populate the coil on TeSys FF-series contactors. It operates within 0.85 to 1.1 Uc (46.75 to 60.5 V DC) and drops out between 0.15 and 0.2 Uc (8.25 to 11 V DC) at 131 °F (55 °C). Closing time is 30 to 40 ms, opening 30 to 50 ms — fast enough for standard motor starting and general switching in control panels. ## Coil resistance and suppressor note Inrush resistance is 5.63 Ohm at 68 °F (20 °C), dropping to 967.3 Ohm holding at the same temperature. The coil ships without a built-in suppressor module — plan for an external flyback diode or RC snubber across the coil terminals if driving from a PLC or solid-state output, otherwise the inductive kick can damage the driver. Ambient operating range is -5 to 55 °C (23 to 131 °F).","metaTitle":"Schneider TeSys LX4FF055 contactor coil, 55 V DC","metaDescription":"TeSys LX4FF055 contactor coil, 55 V DC, 30-40 ms close / 30-50 ms open, no built-in suppressor, 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":"LX4FF055","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","description":"contactor coil - FF - 55 V DC","Operating time":"30...40 ms closing 30...50 ms opening","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Device short name":"LX4FF","Average resistance":"5.63 Ohm inrush 68 °F (20 °C) 967.3 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":"55 V DC","Control circuit voltage limits":"Operational 0.85...1.1 Uc 131 °F (55 °C)) Drop-out 0.15...0.2 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/5ef1712b310e626d1b93080b445d100d.pdf","sourceUrl":"https://www.se.com/th/en/product/LX4FF055/contactor-coil-ff-55-v-dc/"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LX4FF055 in this component family?","answer":"Within the TeSys FF series, the closest alternative would be a coil with the same mechanical footprint but a different control voltage — for example, a 48 V DC or 110 V DC variant. Pin compatibility is determined by the FF coil platform, but the control voltage must match the contactor base and the control circuit. No direct pin-compatible substitute with identical voltage is listed; the LX4FF055 is the specific 55 V DC offering."},{"question":"What compliance documentation does Schneider provide for LX4FF055?","answer":"The evidence does not list specific compliance declarations (RoHS, REACH, UL, IEC) for this order code. Standard Schneider TeSys components typically carry CE, UL, and CSA marks, but verify the specific certificate for your region against the nameplate or Schneider's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FF055","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/LX4FF055 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}