{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7221-1BH30-0XB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7221-1BH30-0XB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7221-1BH30-0XB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7221-1BH30-0XB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6ES7221-1BH30-0XB0, S7-1200 digital input module, 16 channels 24 V DC, -40 to 70 °C operates with orientation limits, diagnostic alarms, IP20.","salesMarkdown":"## Mounting and ambient restrictions The 6ES7221-1BH30-0XB0: IP20, dimensions 100 x 45 x 75 mm. The ambient operating temperature range depends on orientation: vertical installation limits the max ambient to 45 °C, horizontal to 55 °C. The broader -40 to 70 °C range applies to storage/transport or derated scenarios. Permissible temperature change is 5°C to 55°C at 3°C per minute. Falls within the standard S7-1200 module envelope; mounts on the DIN rail alongside the CPU and other slices. Groupable wiring – inputs are arranged in groups of 4. ## Cabling and signal reach Unshielded cable runs up to 300 m, shielded up to 500 m. Parameterizable per channel group – can configure diagnostics, input delay, and which channels trigger alarms. The diagnostic alarm fires on wire break or supply fault, giving a head start before the line stops.","metaTitle":"Siemens 6ES7221-1BH30-0XB0 Input Module, 16DI 24V, -40..70°C","metaDescription":"Siemens 6ES7221-1BH30-0XB0 16-channel digital input module for S7-1200. Rated -40 to 70°C, 24V DC, diagnostic alarms. Current production, CE, FM, RCM, IP20.","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","title":"6ES7221-1BH30-0XB0","Height":"100 mm","CE mark":"Yes","Plastic":"Yes","FM approval":"Yes","description":"***Spare part*** SIMATIC S7-1200, Digital input SM 1221, 16 DI, 24 V DC, Sink/Source","In Groups Of":"4","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.":"210 g","lifecycle_stage":"current","Diagnostic alarm":"Yes","Power loss, typ.":"2.5 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.":"16","up to 50 °C, max.":"16","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":"16","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.":"130 mA","Between The Channels, In Groups Of":"4","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":"$129.16 – $219.00","stockQuantity":0,"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=385832&mlfb=6ES7221-1BH30-0XB0"},"ai":{"faq":[{"question":"What are the temperature limits of this module?","answer":"Maximum 70 °C (with installation orientation limits – 45 °C vertical, 55 °C horizontal) and minimum -40 °C."},{"question":"Will this module drop into a panel specified around a 6ES7223-1PL32-0XB0?","answer":"No – the 6ES7223-1PL32-0XB0 is a combined input/output module (16DI/16DO). The 6ES7221-1BH30-0XB0 is inputs only, with different wiring and no relay outputs. The physical footprint matches, but the wiring and function differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7221-1BH30-0XB0","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/6ES7221-1BH30-0XB0 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}}