{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7331-7KB01-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7331-7KB01-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7331-7KB01-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7331-7KB01-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-300, SM 331 analog input module 6ES7331-7KB01-0AB0, 2 AI, optically isolated, 9/12/14 bit resolution, U/I/TC/RTD, interrupts, diagnostics, 20-pin, hot-swap.","salesMarkdown":"This is the Siemens SIMATIC S7-300 SM 331 analog input module, order code 6ES7331-7KB01-0AB0. It provides two analog inputs with optical isolation, configurable resolution from 9 to 14 bits. Accepts voltage, current, thermocouple, and resistance signals. Supports interrupts and diagnostics, and connects via a 20-pin front connector with hot-swap capability on the backplane bus. Mounts in any S7-300 rack, occupies one slot. The 20-pin front connector is wired per standard SM 331 pinout. Hot-swap feature allows module replacement while bus is powered, but all field circuits must be de-energized. No hardware rewiring is needed when swapping to the successor 6ES7331-7KB02-0AB0; same mechanical and electrical interface.","metaTitle":"Siemens 6ES7331-7KB01-0AB0 S7-300 Analog Input, EOL","metaDescription":"SIMATIC S7-300 SM 331 analog input module, 2 AI, optically isolated, EOL since 01.10.2004. Replaced by 6ES7331-7KB02-0AB0. Source via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Analog Input Modules"],"specifications":{"UPC":"Not available","Siemens":"6ES7331-7KB01-0AB0 (has been upgraded to 6ES7331-7KB02-0AB0)","Successor":"6ES7331-7KB02-0AB0","Manufacturer":"Siemens","Product Group":"Not available","Product class":"Not available","Quantity Unit":"0 Piece","Product family":"Not available","Shipping Weight":"1.3 Kg","lifecycle_stage":"eol_hot","PLM Effective Date":"End of product lifecycle since: 01.10.2004","Packaging Quantity":"1","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Packaging Dimension":"Not available","Product Description":"SIMATIC S7-300, ANALOG INPUT SM 331, OPTICALLY ISOLATED, 2 AI, 9/12/14 BITS RESOLUTION, U/I/THERMOCOUPLE/RESISTANCE, INTERRUPT, DIAGNOSTICS, 20 PIN, REMOVE/INSERT W. BACKPLANE BUS","Successor Description":"SIMATIC S7-300, ANALOG INPUT SM 331, OPTICALLY ISOLATED, 2 AI, 9/12/14 BITS RESOLUTION, U/I/THERMOCOUPLE/RESISTANCE, ALERT, DIAGNOSTICS, 1 X 20 PIN, REMOVE/INSERT W. BACKPLANE BUS","Export Control Regulations":"ECCN : EAR99H / AL : N","Standard lead time ex-works":"On request","Package size unit of measure":"Not available","Product Dimensions (W x L x H)":"Not available","Compliance with the substance restrictions according to RoHS directive":"not available","Obligation Category for taking back electrical and electronic equipment after use":"No obligation to take back electrical and electronic equipment after use"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$223.95 – $295.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7331-7KB01-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What is the official successor?","answer":"The successor is 6ES7331-7KB02-0AB0. It has the same inputs and physical dimensions, with the main change being 'ALERT' instead of 'INTERRUPT'."},{"question":"How can I source the 6ES7331-7KB01-0AB0 today?","answer":"Since it's obsolete, sourcing is via surplus or broker channels. Submit an RFQ for a quoted lead time and availability."},{"question":"Will the 6ES7331-7KB01-0AB0 fit a panel wired for the successor?","answer":"Yes, it is mechanically and electrically interchangeable with the successor 6ES7331-7KB02-0AB0. No rewiring needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7331-7KB01-0AB0","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/6ES7331-7KB01-0AB0 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}}