{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7405-0KR02-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7405-0KR02-0AA0","canonicalUrl":"https://aoctrl.com/siemens/6ES7405-0KR02-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7405-0KR02-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"SIMATIC S7-400 PS405 power supply, 6ES7405-0KR02-0AA0: wide-range 24/48/60 V DC input, 5 V DC / 10 A output, for redundant operation.","salesMarkdown":"## What It Is and Key Ratings The Siemens 6ES7405-0KR02-0AA0 is a SIMATIC S7-400 power supply (PS405) that takes a wide-range 24/48/60 V DC input and delivers 5 V DC at up to 10 A to the backplane bus, with no base load required. It is designed for redundant use, occupies 2 slots, and carries BIS, CCC, and FM approvals (Ta 0°C to 60°C T4). The 5 V DC / 10 A backplane current is the critical figure. It determines how many S7-400 modules you can hang off this supply without a second unit. Because no base load is required, you don't need to waste current on dummy loads when the rack is lightly populated. The 24/48/60 V DC input flexibility means it works with common industrial battery and rectifier systems; just derate the input current as the voltage drops. The 2-slot footprint is non-negotiable for rack planning. If your chassis is tight on space, remember this supply takes two adjacent slots — typically in the leftmost positions. The 20 W typical power loss means you'll need some ventilation, but that's standard for a 10 A supply in this class. FM approval T4 (Ta 0°C to 60°C) means it's rated for use in ordinary locations with flammable gases present — useful if the panel sits in a classified area. Combined with BIS and CCC, it covers most global project requirements without extra certification lead time.","metaTitle":"Siemens 6ES7405-0KR02-0AA0 PS405 Power Supply, 10 A","metaDescription":"Active SIMATIC S7-400 power supply. Wide-range 24/48/60 V DC input, 5 V DC / 10 A output for redundant use. BIS, CCC, FM approved. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"BIS":"Yes","CCC":"Yes","Max.":"60 °C","Min.":"0 °C","Depth":"217 mm","Width":"50 mm","title":"6ES7405-0KR02-0AA0","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","description":"SIMATIC S7-400, power supply PS405: 10 A, wide range, 24/48/60 V DC; 5 V DC/10 A, for redundant use","Required Slots":"2","Weight, approx.":"1 200 g","lifecycle_stage":"mature","Power loss, typ.":"20 W","Primary/Secondary":"Yes","Inrush current, max.":"18 A; Full width at half maximum 20 ms","Overvoltage category":"II","Rated value at 24 V DC":"4 A","Rated value at 48 V DC":"2 A","Rated value at 60 V DC":"1.6 A","Type of output voltage":"DC","Active power input, typ.":"95 W","Short-circuit protection":"Yes","Backup battery (optional)":"Yes; 2x lithium AA; 3.6 V / 2.2 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.":"10 A; no base load required","for backplane bus (24 V DC), max.":"1 A; idling-proof","Mains/voltage failure stored energy time":"20 ms","Mains buffering according to NAMUR recommendation":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$778.51 – $1,464.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a8dde0c0bccc6bc4496d2eae01cea81e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=249425&mlfb=6ES7405-0KR02-0AA0"},"ai":{"faq":[{"question":"What are the key output ratings?","answer":"It delivers 5 V DC at up to 10 A for the backplane bus, from a wide-range 24/48/60 V DC input. Input current at 24 V is 4 A, at 48 V is 2 A, at 60 V is 1.6 A."},{"question":"What certifications does it hold?","answer":"BIS (India), CCC (China), and FM approval (Ta 0°C to 60°C, T4) for use in hazardous locations."},{"question":"How many slots does it occupy in the S7-400 rack?","answer":"Two slots. Plan accordingly when populating the rack."},{"question":"Does it support redundant operation?","answer":"Yes, it is explicitly designed for redundant use, meaning you can pair two units for backup without external switching."},{"question":"What is the maximum ambient temperature for FM approval?","answer":"FM approval is valid for ambient temperatures from 0°C to 60°C with T4 rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7405-0KR02-0AA0","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/6ES7405-0KR02-0AA0 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}}