{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1FK7084-2AF7.-....","brand":"Siemens","brandSlug":"siemens","productSlug":"1FK7084-2AF7.-....","canonicalUrl":"https://aoctrl.com/siemens/1FK7084-2AF7.-....","factsUrl":"https://aoctrl.com/api/mcp/products/1FK7084-2AF7.-....","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMOTICS S 1FK7-CT synchronous servo motor, 3.1 kW PN, 600 V DC link, 20 Nm M0 at 100 K, 3000 rpm rated, naturally cooled, order code 1FK7084-2AF7.-....","salesMarkdown":"## Form factor and ratings on record The Siemens 1FK7084-2AF7.-.... is a SIMOTICS S 1FK7-CT synchronous servo — a compact, naturally cooled rotating machine sized at 3.1 kW PN with a 600 V DC link rating, 20 Nm M0 (100 K) standstill torque, and a 3000 rpm rated speed. The CT winding is the high-inertia variant tuned for dynamic axes where load inertia dominates the motor's own inertia — typical feed and auxiliary axes on machine tools, packaging indexers, and converting lines. Naturally cooled (no integrated fan) means the rated 3.1 kW PN holds only when the motor is mounted to a heat-sinking surface or within a cabinet that draws the 100 K winding-rise thermal budget away from the stator. In an enclosed cabinet the derating curve in the 1FK7 documentation governs; specifying it for the full 3.1 kW on a poorly coupled machine shortens insulation life before the drive ever faults. ## Lifecycle status and what it means for the BOM The 1FK7084-2AF7.-.... is flagged EOL_hot — the SIMOTICS S 1FK7 platform has been progressively superseded by the 1FK2 generation across the Siemens catalogue. For a cabinet already populated with 1FK7 motors and SINAMICS S120 drive line-ups, that flag does not mean the axis fails tomorrow, but it does mean new factory-channel supply is constrained and independent distribution is the practical source for the remaining installed base. The procurement move here is straightforward: pull the order code into the spares cabinet now rather than after the next encoder or winding fault. A failed 1FK7 axis on a high-inertia feed normally costs a multi-day line stop while the replacement is sourced, which is the kind of outage that converts a maintenance budget line into a production-loss conversation. ## Matching the drive and the cabling A 1FK7084-2AF7.-.... is paired with a SINAMICS S120 line module / Motor Module sized for the 3.1 kW continuous and the 20 Nm M0 peak — the DC-link rating of 600 V is consistent with the S120 6SL3055 / 6SL3120 module families on a 400 V three-phase infeed. Encoder and power cables are the SPEED-CONNECT M17 / M23 family with the variant dash coded in the full order string; the bare order code 1FK7084-2AF7.-.... is the family prefix and the trailing dashes carry the encoder type, shaft detail, and brake option. ## Sourcing posture for an EOL servo No stock count, no immediacy promise, no price figure is published here; the move is to send the full order string with the encoder and brake options decoded from the nameplate so the quote matches the motor physically in the cabinet.","metaTitle":"Siemens 1FK7084-2AF7.-.... Servo Motor, 3.1 kW, 20 Nm, EOL","metaDescription":"Siemens SIMOTICS S 1FK7-CT synchronous servo, 3.1 kW, 600 V DC, 20 Nm M0, 3000 rpm, listed EOL. Quoted to order against an RFQ via independent distribution.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors"],"specifications":{"title":"1FK7084-2AF7.-....","description":"SIMOTICS S Synchronous motor 1FK7-CT PN=3.1kW; UDC=600V M0=20Nm (100K); NN=3000rpm; Naturally cooled","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/37f6b015775c46f3d05e8c602d8c7598.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=461041&mlfb=1FK7084-2AF7.-...."},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/1FK7084-2AF7.-....","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/1FK7084-2AF7.-.... 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}}