{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FK027","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FK027","canonicalUrl":"https://aoctrl.com/schneider/LX4FK027","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FK027","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys LX4FK027 contactor coil, 27 V DC, 45-60 ms opening time, without built-in suppressor module.","salesMarkdown":"The LX4FK027 is a replacement contactor coil from the Schneider Electric TeSys range, rated for 27 V DC control voltage with a low-consumption DC control circuit. Opening time is 45-60 ms and closing time is 50-60 ms — this governs the contactor's response in sequential start circuits or safety interlocks where timing matters. It ships without a built-in suppressor module, so you must add an external flyback diode or RC snubber across the coil if driving from a PLC output or solid-state relay, otherwise the inductive kick can damage the driver. ## Coil voltage and control limits Rated control circuit voltage is 27 V DC. The operational range is 0.85 to 1.1 Uc at 131 °F (55 °C), meaning the coil holds in from about 23 V to 29.7 V DC. Drop-out occurs between 0.2 and 0.35 Uc — roughly 5.4 to 9.45 V DC — so it releases reliably on undervoltage. Average resistance at 68 °F (20 °C) is 165.9 Ohm holding and 0.64 Ohm inrush — the inrush current spike is roughly 42 A at 27 V DC before the coil warms and settles to about 163 mA holding current. Confirm the external suppression requirement with your panel design before committing the order.","metaTitle":"TeSys LX4FK027 contactor coil, 27 V DC","metaDescription":"Active TeSys LX4FK027 contactor coil, 27 V DC control voltage. 45-60 ms opening time. No built-in suppressor module. Sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","title":"LX4FK027","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","description":"CONTACTOR COIL FK 27V 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":"165.9 Ohm holding 68 °F (20 °C) 0.64 Ohm inrush 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":"27 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/0645b9e6610ec4ea767488b7d0d95eb7.pdf","sourceUrl":"https://www.se.com/th/en/product/LX4FK027/contactor-coil-fk-27v-dc/"},"ai":{"faq":[{"question":"What is the closest alternative to LX4FK027 in the TeSys family?","answer":"Within the TeSys range, other LX4F* coils (e.g., LX4FK for different voltages) share the same physical footprint and mechanical interface. The deciding factor is control voltage — this one is 27 V DC. There is no pin-compatible single substitute; select the variant matching your control voltage."},{"question":"What compliance documentation is available for LX4FK027?","answer":"As a Schneider Electric TeSys component, it is covered by the brand's standard declarations (CE, RoHS, REACH). Specific certificates are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FK027","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/LX4FK027 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}}