{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7326-1RF01-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7326-1RF01-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7326-1RF01-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1RF01-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SM 326 fail-safe digital input module, 8 inputs 24 VDC, SIL 3 / PLe / Cat. 4, Ex(i) intrinsically safe, end-of-life status.","salesMarkdown":"## Safety integrity and fail-safe operation The Siemens 6ES7326-1RF01-0AB0 is an SM 326 fail-safe digital input module with 8 inputs at 24 VDC, rated for safety applications up to SIL 3 (two-channel) per IEC 61508, PLe per ISO 13849-1, and Category 4 per EN 954-1 — the highest performance level for safety-related control systems. Fail-safe operation is enabled by design, with parameterizable diagnostic alarms and a group error SF (red) indicator for fault annunciation. ## Intrinsically safe Ex(i) inputs This module supports Ex(i) intrinsic safety protection. The output voltage is 8.2 V DC with a maximum power output of 33.1 mW. Maximum permissible external capacitance is 3 µF and inductance 80 mH at the intrinsically safe terminals, with reverse polarity protection included. The closest functional replacement would need to match the 8 fail-safe inputs, 24 VDC rating, Ex(i) intrinsic safety, and SIL 3 / PLe / Cat. 4 safety integrity — verify the specific BOM position before substituting. The module occupies a standard slot with dimensions 80 mm wide, 125 mm high, and 120 mm deep. It requires a 40-pin front connector for field wiring. Maximum cable length is 200 m shielded or 100 m unshielded. Input signal delay from 0 to 1 and 1 to 0 is 1.2 to 3 ms maximum, with a signal \"1\" current draw of 2.1 to 7 mA.","metaTitle":"Siemens 6ES7326-1RF01-0AB0 SM 326 F-DI 8x24VDC, end-of-life","metaDescription":"Siemens SM 326 fail-safe digital input module, 8 inputs, 24 VDC, SIL 3 / PLe / Cat. 4. End-of-life status. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Max.":"60 °C","Depth":"120 mm","Width":"80 mm","Height":"125 mm","Shielded, Max.":"200 m","acc. to EN 954":"Cat. 4","Weight, approx.":"482 g","lifecycle_stage":"eol_hot","Diagnostic alarm":"Yes; Parameterizable","Power loss, typ.":"4.5 W","Rated value (DC)":"24 V","Unshielded, Max.":"100 m","Number of outputs":"8","up to 40 °C, max.":"8","up to 60 °C, max.":"8","At \"0\" To \"1\", Max.":"1.2 to 3 ms","At \"1\" To \"0\", Max.":"1.2 to 3 ms","Fail-safe operation":"Yes","Between The Channels":"Yes","For Signal \"1\", Typ.":"2.1 to 7 mA","Group error SF (red)":"Yes","SIL acc. to IEC 61508":"SIL 2 (single-channel), SIL 3 (two-channel)","Type of input voltage":"DC","Type of output voltage":"8.2 V DC","Po (power output), max.":"33.1 mW","Number of digital inputs":"8","Required Front Connector":"1x 40-pin","Uo (no-load voltage), max.":"10 V","Module for Ex(i) protection":"Yes","Reverse polarity protection":"Yes","from backplane bus 5 V DC, max.":"90 mA","Io (short-circuit current), max.":"13.9 mA","Between The Channels And Backplane Bus":"Yes","Co (permissible external capacity), max.":"3 µF","from load voltage L+ (without load), max.":"160 mA","Performance level according to ISO 13849-1":"PLe","Lo (permissible external inductivity), max.":"80 mH","For Signal \"0\", Max. (Permissible Quiescent Current)":"0.35 to 1.2 mA","Between The Channels And The Power Supply Of The Electronics":"Yes","Um (voltage at non-intrinsically safe connecting terminals), max.":"60 V DC/30 V AC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,645.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6df50a8a045bf8b16bb80a4dab64d691.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=77659&mlfb=6ES7326-1RF01-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1RF01-0AB0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7326-1RF01-0AB0","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/6ES7326-1RF01-0AB0 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}}