{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FJ030","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FJ030","canonicalUrl":"https://aoctrl.com/schneider/LX4FJ030","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FJ030","rawCanonicalId":null},"summary":{"shortDescription":"TeSys range, contactor coil, FJ frame, 30 V DC control voltage, DC low consumption, obsolete lifecycle stage.","salesMarkdown":"The LX4FJ030 is a replacement contactor coil from the TeSys range, designed for FJ-frame contactors. It operates on a 30 V DC control circuit with DC low-consumption coil technology, meaning it draws inrush current only during pickup and then switches to a low holding current — a feature that reduces heat buildup in densely packed control panels. ## Key electrical characteristics The coil's operating time is 45 to 60 ms for opening and 50 to 60 ms for closing, which is typical for a contactor of this frame size and suitable for general motor switching and resistive load applications where fast but controlled engagement is needed. Average coil resistance measures 0.842 Ω during inrush and 229.1 Ω during holding at 68 °F (20 °C). The control circuit voltage limits are: dropout at 0.2 to 0.35 Uc (6 to 10.5 V DC) and operational range of 0.85 to 1.1 Uc (25.5 to 33 V DC) at 131 °F (55 °C). This means the coil will reliably pick up above ~25.5 V DC and drop out below ~10.5 V DC — important to verify your control supply stays within these bounds, especially on long cable runs where voltage drop is a factor. The coil comes without a built-in suppressor module, so an external flyback diode or RC snubber must be added across the coil terminals when driven by a PLC or solid-state output to prevent voltage spikes from damaging the driver. ## Operating environment and category Rated for ambient air temperatures from 23 to 131 °F (-5 to 55 °C) during operation, covering most indoor industrial control panel environments. The part is classified under category 18401-WORLD SERVICE PARTS (CTR ACCESS), indicating it is a service/replacement component rather than a new-design item.","metaTitle":"TeSys LX4FJ030 Contactor Coil, 30 V DC, Obsolete","metaDescription":"TeSys LX4FJ030 contactor coil, 30 V DC control voltage, DC low consumption. Obsolete — sourced to order against RFQ. Operating time 45-60 ms open, 50-60 ms close.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","Operating time":"45...60 ms opening 50...60 ms closing","Coil technology":"Without built-in suppressor module","lifecycle_stage":"current","Device short name":"LX4FJ","Average resistance":"0.842 Ohm inrush 68 °F (20 °C) 229.1 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":"30 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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/55411fcefea9312095f530410d277842.pdf","sourceUrl":"https://www.se.com/vn/en/product/LX4FJ030/contactor-coil-fj-30-v-dc/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LX4FJ030/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to the LX4FJ030?","answer":"No official successor order code is provided in the lifecycle record. The closest alternative would be a current-production TeSys FJ-frame contactor coil with 30 V DC control voltage, but mechanical fit (mounting pattern, plunger stroke) must be verified against your existing contactor before ordering."},{"question":"What is the control voltage and coil technology of the LX4FJ030?","answer":"The LX4FJ030 uses a 30 V DC control circuit with DC low-consumption coil technology. It has no built-in suppressor module, so an external flyback diode is required when driven by electronic outputs."},{"question":"What are the operating time and temperature range?","answer":"Opening time is 45 to 60 ms, closing time is 50 to 60 ms. Operating ambient temperature range is 23 to 131 °F (-5 to 55 °C)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FJ030","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/LX4FJ030 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}}