{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7405-0DA02-0AA","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7405-0DA02-0AA","canonicalUrl":"https://aoctrl.com/siemens/6ES7405-0DA02-0AA","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7405-0DA02-0AA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC S7-400 PS 405 power supply, 6ES7405-0DA02-0AA, 24 V DC rated input 2 A, 48 W typical active power, 16 W typical loss, 1 slot wide, FM approved Ta 0 °C to 60 °C T4.","salesMarkdown":"## Power supply for the S7-400 rack The Siemens 6ES7405-0DA02-0AA is a SIMATIC S7-400 PS 405 power supply that occupies one slot in the rack and provides the 24 V DC backplane bus for the CPU and I/O modules. ## Inrush and connection Maximum inrush current is 18 A with a half-width pulse of 20 ms — the upstream 24 V DC breaker or fuse needs to ride through that without nuisance tripping. ## Environmental limits and approvals Operates from 0 °C to 60 °C ambient, and carries FM approval for use in hazardous locations — Ta: 0 °C to 60 °C T4, meaning the surface temperature stays below 135 °C in normal operation. Equipment protection class I with protective conductor — the chassis must be bonded to the panel ground. ## Backup and panel fit An optional backup battery (1x lithium AA, 3.6 V / 2.3 Ah) keeps the RAM and real-time clock alive during a power loss — the battery holder is on the front of the supply.","metaTitle":"Siemens 6ES7405-0DA02-0AA PS 405 Power Supply, 24V 2A","metaDescription":"Siemens 6ES7405-0DA02-0AA SIMATIC S7-400 PS 405 power supply, 24 V DC rated 2 A input, 48 W typical active power. FM approved Ta 0-60 °C T4.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Power Supplies"],"specifications":{"title":"6ES7405-0DA02-0AA","Product No":"6ES7405-0DA02-0AA","FM approval":"Yes; Ta: 0 °C to 60 °C T4","description":"SIMATIC S7-400 Power supply PS 405","Product type":"SIMATIC S7-400, Power supply PS 405","Required Slots":"1","Shipping Weight":"2 Kg","lifecycle_stage":"mature","Power loss, typ.":"16 W","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Inrush current, max.":"18 A; Full width at half maximum 20 ms","Active power input, typ.":"48 W","Backup battery (optional)":"Yes; 1x lithium AA; 3.6 V / 2.3 Ah","Equipment protection class":"I, with protective conductor","Product Dimensions (W x L x H)":"2.5cm x 21.7cm x 29cm","Design of electrical connection":"3x 1.5 mm², solid or stranded wire with end sleeve, external diameter 3 mm to 9 mm","Ambient temperature during operation":"min. 0 °C, max. 60 °C","Input current Rated value at 24 V DC":"2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$564.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c66996dced560dc76b23a9f3485348c0.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the FM approval rating for the 6ES7405-0DA02-0AA?","answer":"FM approval is Yes, with a temperature class of T4 at 0 °C to 60 °C ambient — suitable for use in hazardous locations where the surface temperature must stay below 135 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7405-0DA02-0AA","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/6ES7405-0DA02-0AA 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}}