{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1221-3BD30-5XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1221-3BD30-5XB0","canonicalUrl":"https://aoctrl.com/siemens/6AG1221-3BD30-5XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1221-3BD30-5XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIPLUS S7-1200 Signal Board SB 1221, 4 digital inputs 24 V DC 200 kHz, conformal coating, -40 to 70 °C, order code 6AG1221-3BD30-5XB0.","salesMarkdown":"## Input Characteristics and Wiring The 6AG1221-3BD30-5XB0: Input signal thresholds are defined by voltage levels relative to L+. Signal '0' is L+ minus 5 V down to L+, with a quiescent current of 1.4 mA maximum. Signal '1' is 0 V up to L+ minus 10 V, with a typical input current of 7 mA (minimum 2.9 mA). Shielded twisted-pair cable is specified up to 50 m. Parameters assignable via TIA Portal. The module reports input status back to the CPU.","metaTitle":"Siemens 6AG1221-3BD30-5XB0 SIPLUS S7-1200 SB 1221 4DI, -40 t","metaDescription":"Active SIPLUS S7-1200 SB 1221 4DI 24V DC 200kHz. Conformal coating, -40 to 70°C, 5,000m altitude. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Max.":"70 °C","Min.":"-40 °C","Depth":"21 mm","Width":"38 mm","title":"6AG1221-3BD30-5XB0","Height":"62 mm","Plastic":"Yes","description":"SIPLUS S7-1200 SB 1221 4DI based on 6ES7221-3BD30-0XB0 with conformal coating, -40…+60 °C, start up -25 °C, digital inputs 4 DI 24 V DC 200 kHz","In Groups Of":"4","For Signal \"0\"":"(L+ minus 5.0 V DC) ... L+ (1.4 ... 0 mA)","For Signal \"1\"":"0 V ... (L+ minus 10 V DC (10 ... 2.9 mA))","Shielded, Max.":"50 m; shielded, twisted pair","Parameterizable":"Yes","Weight, approx.":"40 g","lifecycle_stage":"current","Power loss, typ.":"1 W","Rated value (DC)":"24 V","Fall height, max.":"0.3 m; five times, in product package","For Signal \"1\", Min.":"2.9 mA","For Signal \"1\", Typ.":"7 mA","Type of input voltage":"DC","Storage/transport, max.":"1 080 hPa","Storage/transport, min.":"660 hPa","For Status Of The Inputs":"Yes","Number of digital inputs":"4; Current-sourcing","from backplane bus 5 V DC, typ.":"40 mA","Installation altitude above sea level, max.":"5 000 m","Protection against fouling acc. to EN 60664-3":"Yes; Type 1 protection","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)","For Signal \"0\", Max. (Permissible Quiescent Current)":"1.4 mA","Resistant to commercially available coolants and lubricants":"Yes; Incl. diesel and oil droplets in the air","Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04":"Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil)","Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A":"Yes; Conformal coating, Class A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$287.55","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/48c6a2605c171ca40794b1015f3a543f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=42664&mlfb=6AG1221-3BD30-5XB0"},"ai":{"faq":[{"question":"What is the operating temperature range?","answer":"The module operates from -40 to 70 °C, with a startup derating below -25 °C."},{"question":"What environmental certifications does this module have?","answer":"It has conformal coating per IPC-CC-830A Class A, resistance to coolants and lubricants (including diesel and oil droplets), and meets ANSI/ISA-71.04 level GX for corrosive gases and level LC3/LB3 for salt spray and oil."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1221-3BD30-5XB0","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/6AG1221-3BD30-5XB0 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}}