{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7400-2JA00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7400-2JA00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7400-2JA00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7400-2JA00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400H, rack UR2-H, central and distributed with 2 x 9 slots, 482.5 mm width, 290 mm height, 27.5 mm depth, active production.","salesMarkdown":"## UR2-H rack for redundant S7-400H systems The Siemens 6ES7400-2JA00-0AA0 is the UR2-H rack for the SIMATIC S7-400H redundant automation system, designed to house two separate S7-400 CPUs and their I/O in a single 19-inch chassis. It provides 18 slots arranged as two independent segments of 9 slots each, with a separated P bus and communication bus — this isolation is what allows a redundant CPU pair to operate without bus contention while sharing the same backplane. The rack measures 482.5 mm wide by 290 mm high by 27.5 mm deep — the 482.5 mm width is the standard 19-inch rack mount dimension, so it bolts directly into a 19-inch cabinet without adaptor brackets. Rated for 0 °C to 70 °C ambient operation, so it lives comfortably in a ventilated enclosure — no derating concerns at typical control-room temperatures. Carries CE, UKCA, UL, FM, KC, EAC, and RCM approvals, plus CCC (China Compulsory Certification) — cleared for global projects without separate certification runs.","metaTitle":"Siemens 6ES7400-2JA00-0AA0 UR2-H Rack, 18 Slots, S7-400H","metaDescription":"Siemens 6ES7400-2JA00-0AA0 UR2-H rack for S7-400H redundant systems. 18 slots in 2 segments of 9, 482.5 mm width. Active production, global approvals.","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; Separated","Width":"482.5 mm","title":"6ES7400-2JA00-0AA0","Height":"290 mm","CE mark":"Yes","UKCA mark":"Yes","FM approval":"Yes","KC approval":"Yes","UL approval":"Yes","description":"SIMATIC S7-400H, rack UR2-H, central and distributed with 2 x 9 slots,","Number of slots":"18; 2 segments with 9 slots each","Weight, approx.":"4.1 kg","lifecycle_stage":"mature","Communication bus":"Yes; Separated","EAC (formerly Gost-R)":"Yes","RCM (formerly C-TICK)":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$814.73 – $1,194.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8d4359e571bd0eb112a4d611228dd82c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=312687&mlfb=6ES7400-2JA00-0AA0"},"ai":{"faq":[{"question":"Does the 6ES7400-2JA00-0AA0 work with standard S7-400 CPUs?","answer":"The UR2-H rack is designed for the S7-400H redundant system and accepts standard S7-400 CPUs, but its two-segment backplane with separated P bus and communication bus is specifically intended for redundant CPU pairs — using it with a single CPU in a non-redundant application wastes the second segment."},{"question":"What is the difference between UR2 and UR2-H?","answer":"The UR2 is a standard 18-slot rack with a single backplane segment, while the UR2-H (this part) splits the 18 slots into two isolated 9-slot segments with separated P and communication buses — the H variant is built for redundant S7-400H systems where two CPUs must run independently on the same rack."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7400-2JA00-0AA0","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/6ES7400-2JA00-0AA0 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}}