{"product_id":"siemens-6es7405-0ra02-0aa0-ps405-20a-dc-power-supply","title":"Siemens 6ES7405-0RA02-0AA0 SIMATIC S7-400 PS405 20A DC Power Supply","description":"\u003cp\u003eThe Siemens 6ES7405-0RA02-0AA0 SIMATIC S7-400 PS405 power supply accepts 24, 48 or 60 V DC input and delivers 5 V DC at 20 A to the backplane bus plus 24 V DC at up to 1 A, the highest-current PS405 in this range. Typical active power input is 168 W. It occupies two rack slots and weighs 1.3 kg.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6ES7405-0RA02-0AA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7-400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEAN\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4019169144292\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePS405\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupply Voltage (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 \/ 48 \/ 60 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7 A at 24 V DC, 3.2 A at 48 V DC, 2.5 A at 60 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInrush Current, max\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e56 A, 1.5 ms full width at half maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput, Backplane Bus (5 V DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 A, no base load required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput, Backplane Bus (24 V DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 A, idling-proof\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShort-Circuit Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eActive Power Input, typ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e168 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Loss, typ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e44 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMains Buffering\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 ms, per NAMUR recommendation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBackup Battery (optional)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2x lithium AA, 3.6 V \/ 2.2 Ah\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSlots Required\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOvervoltage Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEquipment Protection Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eI, with protective conductor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAmbient Temperature, Operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 to 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e290 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e217 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.3 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eCertifications \u0026amp; Standards\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCCC\u003c\/li\u003e\n\u003cli\u003eBIS\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eAt 20 A on the 5 V DC backplane bus, the PS405 20 A covers a fully loaded multi-segment S7-400 rack where the combined module current draw exceeds what a lower-current PS405 supplies. Its 56 A inrush current is higher than the smaller units', a factor to check against upstream fuse or breaker curves at startup.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eThe 20 A backplane rating and 217 mm depth suit a densely populated S7-400 rack, such as a central rack carrying multiple communication processors alongside standard I\/O. Confirm the sum of module backplane-bus current draw against this 20 A rating before finalizing the module list.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960582725915,"sku":"6ES7405-0RA02-0AA0","price":1570.03,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7405-0ra02-0aa0-ps405-plc-power-supply.png?v=1789782028","url":"https:\/\/stoklink.com\/products\/siemens-6es7405-0ra02-0aa0-ps405-20a-dc-power-supply","provider":"Stoklink","version":"1.0","type":"link"}