{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7326-1BK02-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7326-1BK02-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7326-1BK02-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1BK02-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300, fail-safe digital I/O module, 6ES7326-1BK02-0AB0, 24 inputs, 4 outputs, SIL 3, Cat.4, 24 V DC.","salesMarkdown":"The 6ES7326-1BK02-0AB0 is a fail-safe digital I/O module with 24 inputs and 4 isolated outputs. It achieves SIL 3, Category 4, with fail-safe operation and diagnostic alarms. Rated for 24 V DC and drawing up to 450 mA from load voltage L+ (plus 100 mA from the backplane bus), this module is designed for 2-wire sensors with a permissible quiescent current of 2 mA. It handles sensor cable runs up to 200 m shielded or 100 m unshielded, with switching times of 3.4 ms both directions. With SIL 3 and Category 4, this module meets the highest safety integrity level for single-fault-tolerant machinery safety functions. It generates a diagnostic alarm for group errors (SF red LED) and readable diagnostics, which simplifies troubleshooting in a safety circuit. The isolation between channels (in groups of 12) and between channels and backplane bus allows mixing safe and unsafe signals without grounding concerns, as long as isolation is tested at 500 V DC/350 V AC. Outputs limited to 24 simultaneously on at rated conditions; derate at higher temperature. Draws 10 W typical. Dimensions: 120 x 80 mm.","metaTitle":"Siemens 6ES7326-1BK02-0AB0 S7-300 Fail-Safe DI/DO, SIL3","metaDescription":"End-of-life S7-300 fail-safe digital I/O module. 24 inputs, 4 isolated outputs, SIL 3, Cat.4, diagnostic alarm. Sourced to order – RFQ required.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"Depth":"120 mm","Width":"80 mm","title":"6ES7326-1BK02-0AB0","Height":"125 mm","Rated value":"400 mA","description":"SIMATIC S7, Digital input SM 326, F-DI 24x24 V DC, Fail-safe digital input for SIMATIC S7 F-systems with diagnostic alarm, up to Category 4 (EN 954-1)/ SIL3 (IEC61508)/PLE (ISO13849), 1x 40-pole","2-Wire Sensor":"Yes; if short-circuit test is deactivated","For Signal \"0\"":"-30 to +5 V","For Signal \"1\"":"+11 to +30V","Shielded, Max.":"200 m","acc. to EN 954":"Cat. 4","Weight, approx.":"442 g","lifecycle_stage":"eol_hot","Diagnostic alarm":"Yes","Power loss, typ.":"10 W","Rated value (DC)":"24 V","Unshielded, Max.":"100 m","Number of outputs":"4; Isolated","up to 40 °C, max.":"24","up to 60 °C, max.":"24; (at 24 V) or 18 (at 28.8 V)","At \"0\" To \"1\", Max.":"3.4 ms","At \"1\" To \"0\", Max.":"3.4 ms","Fail-safe operation":"Yes","Between The Channels":"Yes","Diagnostics function":"Yes","For Signal \"1\", Typ.":"10 mA","Group error SF (red)":"Yes","acc. to DIN VDE 0801":"AK 6","Isolation tested with":"500 V DC/350 V AC","SIL acc. to IEC 61508":"SIL 3","Type of input voltage":"DC","Number of digital inputs":"24","Required Front Connector":"40-pin","Reverse polarity protection":"Yes","Diagnostic information readable":"Yes","from backplane bus 5 V DC, max.":"100 mA","Between The Channels, In Groups Of":"12","Between The Channels And Backplane Bus":"Yes","from load voltage L+ (without load), max.":"450 mA","Performance level according to ISO 13849-1":"e","Permissible Quiescent Current (2-Wire Sensor), Max.":"2 mA","For Signal \"0\", Max. (Permissible Quiescent Current)":"2 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$588.88 – $1,258.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/794f757832198a0e5af66a8af256db62.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=477249&mlfb=6ES7326-1BK02-0AB0"},"ai":{"faq":[{"question":"What front connector does it require?","answer":"A 40-pin front connector is required (sold separately)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7326-1BK02-0AB0","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/6ES7326-1BK02-0AB0 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}}