{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7326-1RF00-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7326-1RF00-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7326-1RF00-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1RF00-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-300 SM 326 F-DI 8xNAMUR fail-safe digital input module, 8 channels (4 two-channel), 8.2 V DC NAMUR, SIL 3, PL e, 120 × 80 × 125 mm.","salesMarkdown":"## 8 NAMUR channels, SIL 3, end-of-life The Siemens 6ES7326-1RF00-0AB0 is a fail-safe digital input module carrying 8 NAMUR-compliant inputs (DIN 19234) that can be configured as 8 one-channel or 4 two-channel paths for redundant safety wiring. Single-channel wiring achieves SIL 2 and Category 4; two-channel wiring reaches SIL 3 and Performance Level e. ## Ex(i) approval and sensor power The module is approved for intrinsically safe Ex(i) applications, with a NAMUR sensor supply of 8.2 V DC, a no-load voltage ceiling of 10 V, and a short-circuit current limit of 13.9 mA — the typical NAMUR characteristic that lets the module detect wire breaks and short circuits as diagnostic events. Maximum permissible external capacitance is 3 µF and inductance 80 mH, so the wiring distance to an Ex(i) zone sensor is bounded by the cable's own L/R and C — shielded runs up to 200 m, unshielded 100 m, per the module's spec. ## Panel fit and backplane loading Occupies a single slot (80 × 125 × 120 mm, 482 g) and draws 90 mA from the 5 V DC backplane bus plus up to 160 mA from the load supply L+ — a combined 4.5 W typical dissipation. Requires a 40-pin front connector (not included) for field wiring; the module reports diagnostic alarms and a group-error SF LED, and the backplane isolation is tested at 500 V DC between channels and to the bus.","metaTitle":"Siemens 6ES7326-1RF00-0AB0 F-DI 8xNAMUR, SIL 3, EOL","metaDescription":"Siemens 6ES7326-1RF00-0AB0 fail-safe digital input module, 8 NAMUR channels, SIL 3 (two-channel), PL e. End-of-life phase — 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":"4","Weight, approx.":"482 g","lifecycle_stage":"eol_hot","Diagnostic alarm":"Yes","Power loss, typ.":"4.5 W","Rated value (DC)":"in accordance with DIN 19234 or NAMUR","Unshielded, Max.":"100 m","Number of outputs":"8","up to 40 °C, max.":"8; vertical setup","up to 60 °C, max.":"8; horizontal set up","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","acc. to DIN VDE 0801":"AK 4 (one channel), AK 5 und 6 (two channel)","Isolation tested with":"500 V DC","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; 8 (one-channel); 4 (two-channel)","Required Front Connector":"40-pin","Uo (no-load voltage), max.":"10 V","Module for Ex(i) protection":"Yes","Reverse polarity protection":"Yes","Diagnostic information readable":"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":"e","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":"$309.98","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=348363&mlfb=6ES7326-1RF00-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7326-1RF00-0AB0/alternatives.json"},"ai":{"faq":[{"question":"Can 6ES7326-1RF00-0AB0 be used with NAMUR proximity sensors in hazardous areas?","answer":"Yes — the module is approved for Ex(i) intrinsically safe applications. It supplies 8.2 V DC to the sensor loop and limits short-circuit current to 13.9 mA, with maximum external capacitance 3 µF and inductance 80 mH for the field wiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7326-1RF00-0AB0","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/6ES7326-1RF00-0AB0 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}}