{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7401-1DA01-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7401-1DA01-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7401-1DA01-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7401-1DA01-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400 rack CR3, central with 4 slots, 130 x 290 x 27.5 mm, P bus included.","salesMarkdown":"## Central rack for S7-400 CPU and I/O The Siemens 6ES7401-1DA01-0AA0 is the CR3 central rack for the SIMATIC S7-400 system, providing 4 slots for the CPU and I/O modules in a single backplane assembly. It includes the P bus, which is the parallel backplane bus that carries I/O data between the CPU and the modules — without it, the rack cannot communicate with the inserted cards. ## Slot count and physical fit With 4 slots, this rack is sized for a single CPU plus up to three I/O or interface modules in a compact central configuration. The CR3 is a central rack, meaning it holds the CPU; it is not an expansion (ER) rack. Dimensions are 130 mm wide, 290 mm high, and 27.5 mm deep. Operating temperature range is 0 °C to 70 °C, covering most conditioned industrial enclosures but not extended-range applications like outdoor cabinets without climate control. The 6ES7401-1DA01-0AA0 carries a broad set of global approvals: CE, UKCA, UL, FM, KC, CCC, EAC, and RCM — covering installations in North America, Europe, Asia, and the EAEU customs union.","metaTitle":"Siemens 6ES7401-1DA01-0AA0 SIMATIC S7-400 Rack CR3, 4 Slots","metaDescription":"Siemens 6ES7401-1DA01-0AA0 SIMATIC S7-400 central rack CR3 with 4 slots, P bus, 130x290x27.5 mm. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"CCC":"Yes","Max.":"70 °C","Min.":"0 °C","Depth":"27.5 mm","P bus":"Yes","Width":"130 mm","title":"6ES7401-1DA01-0AA0","Height":"290 mm","CE mark":"Yes","UKCA mark":"Yes","FM approval":"Yes","KC approval":"Yes","UL approval":"Yes","description":"SIMATIC S7-400, rack CR3, central with 4 slots","Number of slots":"4","Weight, approx.":"750 g","lifecycle_stage":"mature","Communication bus":"Yes","EAC (formerly Gost-R)":"Yes","RCM (formerly C-TICK)":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$563.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a703b6dca2ae04b0522dbf68502e4621.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=222190&mlfb=6ES7401-1DA01-0AA0"},"ai":{"faq":[{"question":"Does the 6ES7401-1DA01-0AA0 include the P bus?","answer":"Yes, the P bus is included on this rack. It is the parallel backplane bus that connects the CPU to the I/O modules — essential for normal operation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7401-1DA01-0AA0","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/6ES7401-1DA01-0AA0 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}}