{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LX4FJ100","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LX4FJ100","canonicalUrl":"https://aoctrl.com/schneider/LX4FJ100","factsUrl":"https://aoctrl.com/api/mcp/products/LX4FJ100","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric TeSys FJ contactor coil LX4FJ100, 100 V DC control, 45-60 ms opening, DC low consumption.","salesMarkdown":"The LX4FJ100 is a replacement contactor coil from the TeSys FJ range, designed for 100 V DC control circuits. It fits the FJ-series contactor frame and drives the main pole closure and opening sequence. Rated operating time is 45 to 60 ms for opening and 50 to 60 ms for closing — consistent with standard power contactor response for motor and resistive load switching in control panels. ## Control circuit and voltage tolerance Control circuit voltage is 100 V DC, classified as DC low consumption. The coil holds in across 0.85 to 1.1 Uc at 131 °F (55 °C), and drops out between 0.2 and 0.35 Uc at the same temperature. That dropout threshold — 20 to 35 V — means the contactor releases reliably on a sagging DC bus without needing an undervoltage release add-on. Coil resistance measures 9.7 Ω inrush and 2643 Ω holding at 68 °F (20 °C). The wide ratio between inrush and holding reflects the DC economizer circuit built into the FJ coil design — high pull-in force, low sustained power draw. ## Suppressor and ambient limits This coil ships without a built-in suppressor module. If the control circuit uses a solid-state output or a PLC with sensitive electronics, an external flyback diode or RC snubber across the coil terminals is needed to clamp the inductive kick on dropout. Ambient air temperature range for operation is 23 to 131 °F (-5 to 55 °C).","metaTitle":"LX4FJ100 TeSys contactor coil, 100 V DC","metaDescription":"Active TeSys FJ contactor coil, 100 V DC control, 45-60 ms opening time, no built-in suppressor. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactor & Starter Coils"],"specifications":{"Range":"TeSys","title":"LX4FJ100","Category":"18401-WORLD SERVICE PARTS(CTR ACCESS)","description":"contactor coil - FJ - 100 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":"LX4FJ","Average resistance":"9.7 Ohm inrush 68 °F (20 °C) 2643 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":"100 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/cc200deac5d2b92b915a181699e1bdeb.pdf","sourceUrl":"https://www.se.com/vn/en/product/LX4FJ100/contactor-coil-fj-100-v-dc/"},"ai":{"faq":[{"question":"What is the control voltage and dropout behavior?","answer":"The coil is rated for 100 V DC control. It drops out between 0.2 and 0.35 Uc (20 to 35 V) at 131 °F (55 °C), ensuring reliable release on a sagging bus."},{"question":"Does this coil include a built-in suppressor?","answer":"No, the LX4FJ100 ships without a built-in suppressor module. An external flyback diode or RC snubber is recommended when driven by solid-state outputs."},{"question":"What is the operating temperature range?","answer":"Ambient air temperature for operation is 23 to 131 °F (-5 to 55 °C)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LX4FJ100","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/LX4FJ100 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}}