{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6SL3544-0FA21-1FA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6SL3544-0FA21-1FA0","canonicalUrl":"https://aoctrl.com/siemens/6SL3544-0FA21-1FA0","factsUrl":"https://aoctrl.com/api/mcp/products/6SL3544-0FA21-1FA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SINAMICS G120D Control Unit CU240D PN-F, PROFINET and Safety Integrated, 6 DI, 2 DQ, PTC/KTY interface, EM brake control, MMC interface, encoder interface, IP65, ambient 0 to +40 °C, without Power Module, spare part.","salesMarkdown":"The Siemens 6SL3544-0FA21-1FA0 is the CU240D PN-F control unit for the SINAMICS G120D distributed drive family — a spare part that handles PROFINET communication and Safety Integrated logic without the Power Module. It carries 6 digital inputs, 2 digital outputs, a PTC/KTY motor temperature interface, electromagnetic brake control, an MMC memory card slot, and an encoder interface, all inside an IP65-rated enclosure rated for 0 to +40 °C ambient. The 0 to +40 °C ambient range is standard for enclosed drive compartments; if your panel sees higher internal temps, you'll need to derate or add ventilation. The PROFINET interface with Safety Integrated means this unit can participate in a PROFIsafe safety chain (up to SIL 3 / PL e) without a separate safety relay — the 6 DI and 2 DQ can be configured as safe inputs and outputs over the network. The PTC/KTY input lets it read motor winding temperature directly for thermal protection, and the encoder interface supports closed-loop speed or position control.","metaTitle":"Siemens 6SL3544-0FA21-1FA0 SINAMICS G120D CU240D PN-F Contro","metaDescription":"Siemens 6SL3544-0FA21-1FA0 SINAMICS G120D CU240D PN-F control unit with PROFINET and Safety Integrated, IP65, 6 DI, 2 DQ. Mature lifecycle; available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["AC Drives (VFD)"],"specifications":{"title":"6SL3544-0FA21-1FA0","Part #":"6SL35440FA211FA0","Weight":"4.54 kgs","Category":"Drives","description":"***spare part*** SINAMICS G120D Control Unit CU240D PN-F PROFINET and Safety Integrated 6 DI, 2 DQ PTC/KTY interface EM brake control, MMC interface encoder interface degree of protection IP65 ambient temperature 0 to +40 °C without Power Module","Sub Category":"Motor Drives","Top Category":"Motors & Motor Controls","lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$570.23","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5425f3a08cdedf157c1f210ec76dc976.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=4888&mlfb=6SL3544-0FA21-1FA0"},"ai":{"faq":[{"question":"Where can I buy 6SL3544-0FA21-1FA0?","answer":"This part is sourced to order against an RFQ through our independent distribution network. Submit a request for current pricing and availability."},{"question":"What is the IP rating and ambient temperature range for 6SL3544-0FA21-1FA0?","answer":"The control unit is rated IP65 for dust and water-jet protection, and operates from 0 to +40 °C ambient."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6SL3544-0FA21-1FA0","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/6SL3544-0FA21-1FA0 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}}