{"product_id":"6ep1961-3ba21-siemens-sitop-pse202u-redundancy-module-24v-40a","title":"6EP1961-3BA21 Siemens SITOP PSE202U Redundancy Module 24V 40A","description":"\u003ch2\u003e\u003cstrong\u003eTechnical Specifications \u0026amp; Electrical Data\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003e6EP1961-3BA21\u003c\/strong\u003e operates with a DC input voltage range of 24 to 28.8 V. Its output voltage follows the input voltage minus approximately 0.5 V, delivering a nominal 24 V DC.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand \u0026amp; Manufacturer:\u003c\/strong\u003e Siemens (SITOP PSE202U series).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Model:\u003c\/strong\u003e \u003cstrong\u003e6EP1961-3BA21\u003c\/strong\u003e (Redundancy module).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Voltage:\u003c\/strong\u003e 24 ... 24 V DC (nominal), 24 ... 28.8 V DC (range).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Voltage:\u003c\/strong\u003e Nominal 24 V DC, regulated and isolated.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Current:\u003c\/strong\u003e Rated at 40 A total (max. 20 A per input).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEfficiency \u0026amp; Power Loss\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis redundancy module offers high efficiency to minimise energy waste in your cabinet. It maintains low power consumption even under no-load conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEfficiency:\u003c\/strong\u003e 96.6 % at rated output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Loss (Rated Load):\u003c\/strong\u003e Typically 34 W .\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Loss (No-Load):\u003c\/strong\u003e Maximum 1.5 W .\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eStatus Indication \u0026amp; Signalling\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module provides clear visual and electrical status signals for easy diagnostics. A green LED confirms both input voltages are above the set threshold.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreen LED:\u003c\/strong\u003e Illuminates when both input voltages exceed the switching threshold (adjustable 20 ... 25 V).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed LED:\u003c\/strong\u003e Indicates at least one input voltage has fallen below the threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Contact:\u003c\/strong\u003e Provides isolated changeover contacts (8 A\/240 V AC, 24 V DC) signalling \"OK\" status.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMechanical Dimensions \u0026amp; Mounting\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe compact housing of the \u003cstrong\u003e6EP1961-3BA21\u003c\/strong\u003e allows for space-saving DIN rail installation. It requires specific clearance around the unit for proper airflow and cooling.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions (W x H x D):\u003c\/strong\u003e 70 mm x 125 mm x 120 mm .\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Height:\u003c\/strong\u003e 225 mm total with DIN rail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Clearance (Top\/Bottom):\u003c\/strong\u003e 50 mm each.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Method:\u003c\/strong\u003e Snaps onto 35 x 7.5\/15 mm DIN rail (EN 60715).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNet Weight:\u003c\/strong\u003e 0.5 kg .\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAmbient Conditions \u0026amp; Approvals\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis SITOP module is designed for harsh industrial environments and carries multiple international certifications. It operates reliably across a wide temperature range.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -25 ... +60 °C (natural convection).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage\/Transport Temperature:\u003c\/strong\u003e -40 ... +85 °C .\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 5 ... 95 % non-condensing (climate class 3K3).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20 .\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Standards:\u003c\/strong\u003e CE, cULus-Listed (UL 508, CSA C22.2 No. 107.1), EAC, and marine approvals (ABS, DNV).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMTBF at 40 °C:\u003c\/strong\u003e 6,471,654 hours (high reliability).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eElectrical Connection Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module uses screw terminals for secure and reliable wiring. It provides separate terminals for input, output, and the signalling relay.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput\/Output Terminals:\u003c\/strong\u003e Each accepts 0.33 ... 10 mm² (single-core\/finely stranded).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Contact Terminals:\u003c\/strong\u003e Accept 0.5 ... 2.5 mm² (single-core\/finely stranded).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring Note:\u003c\/strong\u003e Use appropriate wire gauges for the 40 A total current.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePackage Contents \u0026amp; Logistics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eYour order includes the redundancy module and necessary documentation. We ensure fast and secure delivery through our trusted logistics partners.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e One SITOP PSE202U redundancy module \u003cstrong\u003e6EP1961-3BA21\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new and original Siemens product.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping Partners:\u003c\/strong\u003e FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch Time:\u003c\/strong\u003e We ship within 5 business days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReturn Policy:\u003c\/strong\u003e We support returns within 30 days.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat happens if one of the two input power supplies fails?\u003c\/strong\u003e\u003cbr\u003eThe module automatically decouples the failed supply and continues to deliver the full 40 A output from the remaining unit, ensuring uninterrupted operation of your load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I adjust the output voltage of this redundancy module?\u003c\/strong\u003e\u003cbr\u003eNo, the output voltage is fixed and follows the input voltage minus approximately 0.5 V. It is not user-adjustable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs this module suitable for use in marine environments?\u003c\/strong\u003e\u003cbr\u003eYes, it holds approvals from the American Bureau of Shipping (ABS) and Det Norske Veritas (DNV), making it suitable for shipbuilding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the maximum total output current I can draw from this module?\u003c\/strong\u003e\u003cbr\u003eThe maximum aggregate current is 40 A. Above +60 °C up to +70 °C, you need to derate the output by 3% per Kelvin.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eContact Information Inquiries: \u003ca href=\"mailto:sales@nex-auto.com\"\u003esales@nex-auto.com\u003c\/a\u003e, \u003ca href=\"https:\/\/wa.me\/861539249628\"\u003e+86 153 9242 9628\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003ePartner NexAuto Technology Limited : \u003ca href=\"https:\/\/www.nex-auto.com\/\" target=\"_blank\"\u003ehttps:\/\/www.nex-auto.com\/\u003c\/a\u003e\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":46967817961633,"sku":"6EP1961-3BA21","price":259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0673\/5390\/3265\/files\/6EP1961-3BA21.jpg?v=1788509586","url":"https:\/\/www.autonexcontrol.com\/products\/6ep1961-3ba21-siemens-sitop-pse202u-redundancy-module-24v-40a","provider":"AutoNex Controls Limited ","version":"1.0","type":"link"}