{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7326-1BK00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7326-1BK00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7326-1BK00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1BK00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7 SM 326, 6ES7326-1BK00-0AB0, 24 failsafe digital inputs, 24 V DC, 40-pin front connector, SIL 3 / Cat. 4, end-of-life (EOL).","salesMarkdown":"## Failsafe input module for S7F systems The Siemens 6ES7326-1BK00-0AB0 is a SM 326 failsafe digital input module for SIMATIC S7F systems, providing 24 failsafe inputs at 24 V DC with diagnostic interrupt capability. It is rated SIL 3 per IEC 61508 and Cat. 4 per EN 954-1, making it suitable for safety applications up to the highest performance level without a separate safety relay. ## Input characteristics and wiring Each input draws a typical 10 mA at signal \"1\" (11 to 30 V), with a signal \"0\" threshold of -30 to +5 V. The module accepts 2-wire proximity sensors when the short-circuit test is deactivated, with a permissible quiescent current up to 2 mA. Input filtering is symmetric: 3.4 ms max for both 0-to-1 and 1-to-0 transitions. Maximum cable length is 200 m shielded, 100 m unshielded. The module requires a 40-pin front connector (sold separately) and draws up to 450 mA from the load voltage L+ (without load) plus 100 mA from the backplane bus at 5 V DC. Typical power loss is 10 W. ## Physical dimensions and environment Ambient temperature range is up to 60 °C. Isolation is tested at 500 V DC / 350 V AC between channels and backplane bus, with channel-to-channel isolation in groups of 12.","metaTitle":"Siemens 6ES7326-1BK00-0AB0 SM 326, 24 DI, SIL 3, EOL","metaDescription":"Siemens 6ES7326-1BK00-0AB0 SM 326 failsafe digital input module, 24 inputs, SIL 3, Cat. 4. End-of-life (EOL) — sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Digital Input Modules"],"specifications":{"Depth":"120 mm","Width":"80 mm","Height":"125 mm","Rated value":"400 mA","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","Number of digital inputs":"24","Required Front Connector":"40-pin","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","Ta (permissible ambient temperature), max.":"60 °C","Permissible Quiescent Current (2-Wire Sensor), Max.":"2 mA","For Signal \"0\", Max. (Permissible Quiescent Current)":"2 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$360.05","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=357196&mlfb=6ES7326-1BK00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1BK00-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for Siemens 6ES7326-1BK00-0AB0?","answer":"Siemens has designated a successor module for the 6ES7326-1BK00-0AB0. Contact your Siemens representative or check the Siemens Industry Online Support portal for the exact successor order code."},{"question":"Where can I buy Siemens 6ES7326-1BK00-0AB0 available via RFQ confirmation?","answer":"This page sources the 6ES7326-1BK00-0AB0 against an RFQ through independent distribution."},{"question":"Does 6ES7326-1BK00-0AB0 require a 40-pin front connector?","answer":"Yes, the module requires a 40-pin front connector, which is sold separately."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7326-1BK00-0AB0","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/6ES7326-1BK00-0AB0 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}}