{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6GT2821-2AC10","brand":"Siemens","brandSlug":"siemens","productSlug":"6GT2821-2AC10","canonicalUrl":"https://aoctrl.com/siemens/6GT2821-2AC10","factsUrl":"https://aoctrl.com/api/mcp/products/6GT2821-2AC10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC RF200 RF220R RFID reader, 6GT2821-2AC10, RS422 interface, 13.56 MHz, IP67, M30 x 71 mm, -25 to +70 °C.","salesMarkdown":"The Siemens 6GT2821-2AC10 is a SIMATIC RF200 series RF220R RFID reader with an integrated antenna, operating at 13.56 MHz and communicating via an RS422 interface using the 3964R protocol. It reads and writes ISO 15693 and ISO 18000-3 transponders, with a typical access time of 0.6 ms per byte for both read and write operations. The housing is rated IP67, meaning the reader withstands dust ingress and temporary immersion — suitable for washdown environments in food, beverage, or automotive assembly lines. The brass, nickel-plated / PBT construction with silicon-free materials suits clean-room or paint-shop installations where outgassing or contamination is a concern. Power draw is 0.05 A typical at 24 V DC, supplied through the M12 8-pin connector. The supply range is 20.4 to 28.8 V DC, which gives headroom for voltage drop over longer cable runs up to 1000 m on the RS422 interface. ## Read range and deployment constraints Maximum read range is 35 mm, but this is dependent on the specific ISO 15693 transponder type used. The reader is not multitag-capable — it handles one transponder at a time. For applications requiring simultaneous tag reads, a different RF200 variant or a higher-tier RF300/RF600 reader would be needed. The reader is designed to operate from -20 to +70 °C and can be stored or transported from -25 to +80 °C. Shock resistance per EN 60721-3-7 Class 7 M2 at 500 m/s² and vibration resistance at 200 m/s² mean it survives the mechanical stress of conveyor lines, robotic cells, or mobile equipment. Mounting uses the included M30 x 1.5 nuts through a 30 mm diameter hole. The 83 mm height and 71 mm body length fit standard sensor mounting brackets. The 3-color LED on the housing gives local status indication without needing to open the panel. Sourcing is straightforward through standard Siemens distribution channels. For BOM-line commitments, the RS422 interface and 13.56 MHz frequency are the key fit parameters — verify the transponder type and cable length against your existing installation.","metaTitle":"Siemens 6GT2821-2AC10 SIMATIC RF220R RFID Reader, 13.56 MHz,","metaDescription":"Siemens SIMATIC RF200 RF220R RFID reader 6GT2821-2AC10. RS422 interface, 13.56 MHz, IP67, -25 to +70°C. MTBF 501 a. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RFID & Auto-ID"],"specifications":{"MTBF":"501 a","Color":"silver/pastel turquoise","IECEx":"No","at DC":"20.4 ... 28.8 V","Height":"83 mm","Diameter":"30 mm","Material":"Brass, nickel-plated / PBT","During Storage":"-25 ... +80 °C","Display Version":"3-color LED","Range / Maximum":"35 mm; Range is dependent on transponder type: observe http://support.automation.siemens.com/WW/view/en/67384964","lifecycle_stage":"mature","During Operation":"-20 ... +70 °C","During Transport":"-25 ... +80 °C","Fastening Method":"2 nuts M30 x 1.5 (included in scope of supply)","Shock Resistance":"EN 60721-3-7 Class 7 M2","at 24 V / typical":"0.05 A","Shock Acceleration":"500 m/s²","at DC / rated value":"24 V","protection class IP":"IP67","Vibrational Acceleration":"200 m/s²","Suitability For Operation":"ISO 15693 Transponder (MDS Dxxx), for connecting to communication modules","Type Of Electrical Connection":"M12, 8-pin","Product Feature / Silicon-Free":"Yes","for RS 422 interface / maximum":"1000 m","Operating Frequency / Rated Value":"13.56 MHz","Product Feature / Multitag-Capable":"No","Protocol / With Radio Transmission":"ISO 15693, ISO 18000-3","For Read Access / Per Byte / Typical":"0.6 ms","For Write Access / Per Byte / Typical":"0.6 ms","Standard For Interfaces / For Communication":"RS422","Transfer Rate / With Radio Transmission / Maximum":"26.5 kbit/s"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$147.32","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=472346&mlfb=6GT2821-2AC10","alternativesUrl":"https://aoctrl.com/api/mcp/products/6GT2821-2AC10/alternatives.json"},"ai":{"faq":[{"question":"What is the MTBF of this reader?","answer":"The listed MTBF is 501 years, which is typical for solid-state RFID readers with no mechanical wear components. This supports continuous-duty operation in production environments."},{"question":"What compliance documentation is available for this part?","answer":"The reader carries CE marking and is designed for industrial environments. It is silicon-free and the materials are brass, nickel-plated / PBT. Specific RoHS/REACH declarations and the EU declaration of conformity are available from Siemens documentation for the SIMATIC RF200 series."},{"question":"What is the maximum cable length for the RS422 interface?","answer":"The RS422 interface supports cable lengths up to 1000 m at the maximum transfer rate of 26.5 kbit/s. This allows the reader to be placed far from the communication module in large production cells or logistics warehouses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6GT2821-2AC10","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/6GT2821-2AC10 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}}