{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1FK7042-2AF2.-....","brand":"Siemens","brandSlug":"siemens","productSlug":"1FK7042-2AF2.-....","canonicalUrl":"https://aoctrl.com/siemens/1FK7042-2AF2.-....","factsUrl":"https://aoctrl.com/api/mcp/products/1FK7042-2AF2.-....","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 1FK7042-2AF2.-.... SIMOTICS S 1FK7-CT synchronous servo motor, 0.82 kW, 300 V DC, 3 Nm standstill, 3000 rpm rated, naturally cooled.","salesMarkdown":"## Reading the nameplate before you commit the BOM line The 1FK7042-2AF2.-.... is a SIMOTICS S 1FK7-CT synchronous servo motor — standstill torque 3 Nm at 100 K, rated speed 3000 rpm, 0.82 kW mechanical output on a 300 V DC link, naturally cooled (no fan stack on the back cap) (cites:). ## Why naturally cooled matters on a 0.82 kW axis Naturally cooled means the motor dissipates its losses through the housing and the flange into the machine frame — there is no integrated fan to push air across the windings, so the S1 continuous rating depends on a clean thermal path from the motor face to the mount (cites:). For panel builders and integrators this changes the cabinet layout: no fan cable, no intake clearance, but the surrounding machine structure has to act as the heatsink or the 3 Nm M0 figure pulls back under duty cycle (cites:). ## Sourcing posture when the line is already down On an eol_hot servo, the stock that exists is surplus or service-recovery material — independent distributors quote against an RFQ and the lot size, condition, and lead time are confirmed at quote time (cites:). No official successor is listed for this code, so a board-spin replacement is the only clean second-source path; sourcing it as a like-for-like spare means accepting whatever verified inventory the independent channel holds (cites:,).","metaTitle":"Siemens 1FK7042-2AF2.-.... Servo Motor, 0.82 kW, EOL","metaDescription":"Siemens 1FK7042-2AF2.-.... SIMOTICS S 1FK7 servo motor, 0.82 kW, 300 V DC, 3 Nm, 3000 rpm. Lifecycle: eol_hot. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Motors"],"specifications":{"title":"1FK7042-2AF2.-....","description":"SIMOTICS S Synchronous motor 1FK7-CT PN=0.82kW; UDC=300V; M0=3Nm (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/647530720402e9bdb23d5fbad456dc20.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=21149&mlfb=1FK7042-2AF2.-...."},"ai":{"faq":[{"question":"What is 1FK7042-2AF2.-.... and what are its key ratings?","answer":"It is a Siemens SIMOTICS S 1FK7-CT synchronous servo motor — 0.82 kW rated power, 300 V DC link, 3 Nm standstill torque at 100 K, 3000 rpm rated speed, naturally cooled (cites:)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/1FK7042-2AF2.-....","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/1FK7042-2AF2.-.... when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T08:04:08.387Z","lastPublished":"2026-07-23T08:04:08.387Z","indexable":true}}