{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7405-0DA00-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7405-0DA00-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7405-0DA00-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7405-0DA00-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400, PS 405 power supply, 4A, 24V DC input, 5V/4A DC output, lifecycle stage mature.","salesMarkdown":"The 6ES7405-0DA00-0AA0 is the PS 405 power supply module for the SIMATIC S7-400 rack. It takes a 24V DC input and delivers a regulated 5V DC backplane bus at 4A to power the CPU and I/O modules in the chassis. No urgency to stockpile or search for surplus. ## Integration into the S7-400 rack The PS 405 snaps into the leftmost slot of the S7-400 rack and connects to the backplane via the module's own bus connector. No separate cabling to the backplane is needed — the module draws its input from the front-terminal 24V DC connection and feeds the 5V rail internally. Rated for 4A at 5V DC, this supply covers the backplane power budget for a typical mid-size S7-400 configuration with a CPU, a few I/O slices, and a communications processor. If the rack draws more than 4A on the 5V rail, step up to the 10A version (PS 407).","metaTitle":"Siemens 6ES7405-0DA00-0AA0 PS 405 Power Supply, 4A 24V DC, 5","metaDescription":"SIMATIC S7-400 PS 405 power supply, 4A input at 24V DC, 5V/4A DC output. Lifecycle stage mature. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"lifecycle_stage":"mature"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=376726&mlfb=6ES7405-0DA00-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7405-0DA00-0AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the output rating of this power supply?","answer":"It delivers 4A at 5V DC on the S7-400 backplane bus, from a 24V DC input."},{"question":"What is the closest alternative if I need more current?","answer":"The PS 407 power supply (order code 6ES7407-0DA00-0AA0) is the higher-current sibling in the same form factor, rated for 10A at 5V DC. It occupies the same slot and backplane connection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7405-0DA00-0AA0","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/6ES7405-0DA00-0AA0 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}}