{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7405-0DA01-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7405-0DA01-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7405-0DA01-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7405-0DA01-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400, Power supply PS 405 4A, 24 V DC input, 5 V DC/4 A backplane output, 25 mm wide, 217 mm deep, 290 mm high.","salesMarkdown":"## Power supply for the S7-400 rack The Siemens 6ES7405-0DA01-0AA0 is a SIMATIC S7-400 PS 405 4A power supply module that accepts a 24 V DC input and delivers a regulated 5 V DC output at 4 A to the backplane bus, plus a 24 V DC output at 0.5 A for the backplane bus. The module also provides a 48 V DC output rated at 1 000 mA and a 60 V DC output rated at 800 mA. ## Backplane capacity and power budget The 5 V DC backplane bus output is rated at 4 A maximum, which determines how many S7-400 I/O and interface modules this supply can support in the rack. Typical power loss is 16 W, with an active power input of 48 W. Short-circuit protection is included on the outputs, and the module is idling-proof per the design. ## Mains buffering and backup The supply holds up the backplane for 20 ms on a mains/voltage failure, which is sufficient to ride through most line dips without a UPS. Mains buffering per NAMUR recommendation is supported. An optional backup battery (1x lithium AA, 3.6 V / 2.3 Ah) can be fitted to retain the S7-400 memory contents during extended power outages. ## Approvals and wiring FM approval is listed for Class I, Division 2, Groups A, B, C, D T4 at ambient temperatures from 0 °C to 60 °C, making it suitable for installation in hazardous locations. Equipment protection class I requires a protective conductor connection. The power connection accepts 3x 1.5 mm² solid or stranded wire with end sleeve, with an external diameter of 3 mm to 9 mm.","metaTitle":"Siemens 6ES7405-0DA01-0AA0 PS 405 4A Power Supply, 24 V DC,","metaDescription":"Siemens SIMATIC S7-400 power supply PS 405 4A, 24 V DC input, 5 V DC/4 A backplane output. Mature lifecycle. FM approved. Sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Depth":"217 mm","Width":"25 mm","5 V DC":"Yes","Height":"290 mm","24 V DC":"Yes","48 V DC":"Yes","60 V DC":"Yes","FM approval":"Yes; Ta: 0 °C to 60 °C T4","Required Slots":"1; 1","Weight, approx.":"760 g","lifecycle_stage":"mature","Power loss, typ.":"16 W","Primary/Secondary":"Yes","Rated value at 24 V DC":"2 A","Rated value at 48 V DC":"1 000 mA","Rated value at 60 V DC":"800 mA","Active power input, typ.":"48 W","Short-circuit protection":"Yes","Backup battery (optional)":"Yes; 1x lithium AA; 3.6 V / 2.3 Ah","Equipment protection class":"I, with protective conductor","Design of electrical connection":"3x 1.5 mm², solid or stranded wire with end sleeve, external diameter 3 mm to 9 mm","for backplane bus (5 V DC), max.":"4 A","for backplane bus (24 V DC), max.":"0.5 A","Mains/voltage failure stored energy time":"20 ms","Mains buffering according to NAMUR recommendation":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$431.80","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=454219&mlfb=6ES7405-0DA01-0AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7405-0DA01-0AA0/alternatives.json"},"ai":{"faq":[{"question":"Will the 6ES7405-0DA01-0AA0 drop into a panel designed for the 6ES7405-0DA02-0AA1?","answer":"Yes, the two modules share identical dimensions (25 mm wide, 217 mm deep, 290 mm high) and the same slot requirement, so no rewiring or panel modification is needed for a direct swap."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7405-0DA01-0AA0","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/6ES7405-0DA01-0AA0 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}}