{"product_id":"siemens-6ep1961-3ba21-sitop-module-40a-power-supply","title":"Siemens 6EP1961-3BA21 SITOP Module - 40A Power Supply","description":"\u003ch2\u003eSiemens 6EP1961-3BA21 SITOP Redundancy Module | Uninterrupted Power Supply\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEnsures continuous operation with dual power supply backup\u003c\/li\u003e\n\u003cli\u003eHigh 40A output current for demanding industrial applications\u003c\/li\u003e\n\u003cli\u003eSmart LED indicators for instant system status monitoring\u003c\/li\u003e\n\u003cli\u003eEasy DIN rail mounting for quick installation\u003c\/li\u003e\n\u003cli\u003eHigh efficiency design minimizes energy loss\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 6EP1961-3BA21 redundancy module protects your critical systems from power failures. It combines two power supplies to create a reliable 40A backup solution. The module features clear status indicators and automatic switching. Perfect for applications where power interruptions are not acceptable.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eProduct Code:\u003c\/strong\u003e 6EP1961-3BA21\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eModule Type:\u003c\/strong\u003e SITOP PSE202U Redundancy Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eInput Voltage:\u003c\/strong\u003e 24V DC (24-28.8V range)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eOutput Voltage:\u003c\/strong\u003e 24V DC controlled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eRated Current:\u003c\/strong\u003e 40A maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eEfficiency:\u003c\/strong\u003e 96.6% typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003ePower Loss:\u003c\/strong\u003e 34W at full load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eProtection Rating:\u003c\/strong\u003e IP20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eOperating Temperature:\u003c\/strong\u003e -25°C to +60°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eConnection Type:\u003c\/strong\u003e Screw terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eCable Size:\u003c\/strong\u003e 0.33-10mm² power, 0.5-2.5mm² signal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eRelay Contact:\u003c\/strong\u003e 8A\/240V AC rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eDimensions:\u003c\/strong\u003e 70 x 125 x 120 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eWeight:\u003c\/strong\u003e 0.5 kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #059669;\"\u003eMTBF:\u003c\/strong\u003e 6.4 million hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eMount on standard 35mm DIN rail\u003c\/li\u003e\n\u003cli\u003eConnect two SITOP power supplies to input\u003c\/li\u003e\n\u003cli\u003eWire output to your load circuit\u003c\/li\u003e\n\u003cli\u003eConnect relay contacts for remote monitoring\u003c\/li\u003e\n\u003cli\u003eVerify green LED indicates normal operation\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat power supplies work with this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt pairs with two SITOP power supplies, each up to 20A, creating a 40A redundant system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the redundancy feature work?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf one power supply fails, the other automatically takes over without interrupting your equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the LED indicators show?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eGreen means both supplies are good, red indicates at least one supply has dropped below threshold.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this in high-temperature environments?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it operates up to 60°C, with current derating above 60°C to maintain reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat industries typically use this module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturing, process control, and automation systems where power continuity is critical.\u003c\/p\u003e\n\u003ch3\u003eOrder \u0026amp; Support\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #dc2626;\"\u003ePackage Contents:\u003c\/strong\u003e 1 x Siemens 6EP1961-3BA21 Redundancy Module\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #dc2626;\"\u003eWarranty Protection:\u003c\/strong\u003e 12-month quality guarantee\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"color: #dc2626;\"\u003eShipping Services:\u003c\/strong\u003e FedEx, UPS, DHL available worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e© 2025 Ubest Automation Limited. All rights reserved.\u003cbr\u003eOriginal Source: \u003ca href=\"https:\/\/www.ubestplc.com\/\"\u003ehttps:\/\/www.ubestplc.com\/\u003c\/a\u003e\u003cbr\u003eContact: \u003ca href=\"mailto:sales@ubestplc.com\"\u003esales@ubestplc.com\u003c\/a\u003e | Phone: \u003ca href=\"https:\/\/wa.me\/8618030005825\"\u003e+86 180 3000 5825\u003c\/a\u003e\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":51298810364186,"sku":"6EP1961-3BA21","price":216.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/6240\/4634\/files\/6EP1961-3BA21_3.jpg?v=1762753369","url":"https:\/\/www.ubestplc.com\/it\/products\/siemens-6ep1961-3ba21-sitop-module-40a-power-supply","provider":"Ubest Automation Limited","version":"1.0","type":"link"}