{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7221-1BF30-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7221-1BF30-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7221-1BF30-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7221-1BF30-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-1200 SM 1221, 6ES7221-1BF30-0XB0, 8 digital inputs, 24 V DC, 1.5 W, IP20.","salesMarkdown":"This 6ES7221-1BF30-0XB0 is an 8-point digital input module for the Siemens S7-1200 family. It pulls 1.5 W from the backplane (105 mA at 5 V DC) and accepts 24 V DC field signals, with a logic \"1\" threshold at 15 V DC and 2.5 mA. IP20 enclosure suits clean, dry control panels. Mounting dimensions are 100 mm high, 45 mm wide, and 75 mm deep. The module requires a front connector (sold separately) and sits on the S7-1200 rail. Inputs are arranged in groups of two, with a common reference per group. Unshielded cable runs up to 300 m; shielded runs up to 500 m. Diagnostic alarm and status indication are built in. Power loss is 1.5 W typical, so thermal load in a dense cabinet is manageable.","metaTitle":"Siemens 6ES7221-1BF30-0XB0 S7-1200 Digital Input Module, 8 D","metaDescription":"Siemens 6ES7221-1BF30-0XB0 S7-1200 digital input module. 8 inputs, 24 V DC, 1.5 W. IP20, -40 to 70 °C. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"75 mm","Width":"45 mm","Height":"100 mm","CE mark":"Yes","Plastic":"Yes","FM approval":"Yes","In Groups Of":"2","For Signal \"0\"":"5 V DC at 1 mA","For Signal \"1\"":"15 V DC at 2.5 mA","Shielded, Max.":"500 m","For Maintenance":"Yes","Parameterizable":"Yes","Weight, approx.":"170 g","lifecycle_stage":"current","Diagnostic alarm":"Yes","Power loss, typ.":"1.5 W","Rated value (DC)":"24 V","Unshielded, Max.":"300 m","Fall height, max.":"0.3 m; five times, in product package","up to 40 °C, max.":"8","up to 50 °C, max.":"8","Diagnostics function":"Yes","For Signal \"1\", Min.":"2.5 mA","For Signal \"1\", Typ.":"4 mA","RCM (formerly C-TICK)":"Yes","IP degree of protection":"IP20","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","For Status Of The Inputs":"Yes","Number of digital inputs":"8","Required Front Connector":"Yes","Vertical Installation, Max.":"45 °C","Vertical Installation, Min.":"0 °C","Horizontal Installation, Max.":"55 °C","Horizontal Installation, Min.":"0 °C","Permissible Temperature Change":"5°C to 55°C, 3°C / minute","from backplane bus 5 V DC, max.":"105 mA","Between The Channels, In Groups Of":"2","permissible range, lower limit (DC)":"20.4 V","permissible range, upper limit (DC)":"28.8 V","from load voltage L+ (without load), max.":"4 mA; per channel","Operation at 25 °C without condensation, max.":"95 %","Product Function / Supply Voltage For Transmitters":"Yes","For Signal \"0\", Max. (Permissible Quiescent Current)":"1 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$68.58 – $86.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4244e6711ca4776ca4f58c20846e85d2.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=438289&mlfb=6ES7221-1BF30-0XB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7221-1BF30-0XB0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this module?","answer":"It has 8 digital inputs at 24 V DC, typical power loss of 1.5 W, operating temperature from -40 °C to 70 °C, and IP20 protection."},{"question":"Does this module support diagnostic alarms?","answer":"Yes, it includes a diagnostic alarm function and status indication for each input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7221-1BF30-0XB0","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/6ES7221-1BF30-0XB0 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}}