{"product_id":"kfd2-eb2-r4a-b-p-f-power-feed-high-reliability-redundant-supply-module","title":"KFD2-EB2.R4A.B P+F Power Feed: High-Reliability Redundant Supply Module","description":"\u003ch3\u003eEngineering Overview: Mission-Critical Power Distribution\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #27ae60;\"\u003eKFD2-EB2.R4A.B\u003c\/span\u003e\u003c\/strong\u003e serves as a high-reliability \u003cstrong\u003eRedundant Power Feed Module\u003c\/strong\u003e designed by \u003cstrong\u003ePepperl+Fuchs\u003c\/strong\u003e to support seamless operation in complex control systems. By enabling dual-supply input, this module ensures continuous operation of devices mounted on the Power Rail. Its robust architecture prevents system downtime during primary power supply failure, making it an essential link in high-availability industrial networks.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance Data\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel Number:\u003c\/strong\u003e \u003cstrong\u003e\u003cspan style=\"color: #27ae60;\"\u003eKFD2-EB2.R4A.B\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e K-System Redundant Feed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupply Output:\u003c\/strong\u003e Max 4 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Voltage:\u003c\/strong\u003e 20 to 30 V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Dissipation:\u003c\/strong\u003e ≤ 2.4 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFault Signal:\u003c\/strong\u003e Integrated NO relay contact\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelay Contact Loading:\u003c\/strong\u003e 30 V AC \/ 2 A (cos φ \u0026gt; 0.7); 40 V DC \/ 2 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironmental Rating:\u003c\/strong\u003e IP20 (IEC 60529)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -20°C to 60°C (-4°F to 140°F)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e 35 mm DIN rail (EN 60715)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eGlobal PLC Spare HUB’s Insight\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #27ae60;\"\u003eKFD2-EB2.R4A.B\u003c\/span\u003e\u003c\/strong\u003e is technically engineered for stability in high-density automation cabinets. Unlike basic power distribution blocks, this unit includes an active fault relay, providing immediate feedback to the PLC if a redundant leg fails. We recommend this for integration in safety instrumented systems (SIS) and hazardous area control panels where power continuity is mandatory for regulatory compliance.\u003c\/p\u003e\n\n\u003ch3\u003eApplications \u0026amp; Diagnostic Capabilities\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTypical Equipment:\u003c\/strong\u003e Isolation barriers, signal conditioners, and valve positioners mounted on DIN power rails.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperational Scenarios:\u003c\/strong\u003e Petrochemical processing plants, offshore gas rigs, and pharmaceutical manufacturing lines requiring NEMA\/Class I Div 2 compliance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiagnostic Power:\u003c\/strong\u003e The built-in relay allows for remote monitoring of the power supply health. This provides real-time diagnostics, enabling maintenance crews to identify and resolve supply-side faults before they impact production processes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLogistics, Certification, and Warranty\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHazardous Area Approvals:\u003c\/strong\u003e ATEX (Ex nA nC IIC T4), IECEx, UL, CSA, and FM approved for Class I, Division 2 \/ Zone 2 environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month quality assurance guarantee.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGlobal Shipping:\u003c\/strong\u003e Fast-track logistics available via FedEx, UPS, and DHL.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLead Time:\u003c\/strong\u003e Rapid dispatch within 24–48 hours of order processing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eExpert Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is redundant power essential for my Power Rail assembly?\u003c\/strong\u003e\u003cbr\u003e\nRedundancy prevents a single power supply failure from shutting down the entire rack of signal conditioners. This ensures that process variables remain tracked even during supply hardware maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the fault relay be used to drive a high-voltage alarm?\u003c\/strong\u003e\u003cbr\u003e\nThe relay is rated for 30 V AC \/ 40 V DC. If your alarm system requires a higher voltage or current, you must use this relay to trigger an intermediary high-power interface relay.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the primary indicator of power failure on this module?\u003c\/strong\u003e\u003cbr\u003e\nWhen one supply leg fails, the internal relay shifts state. By wiring this to a PLC input card, you gain an immediate software alarm indicating that the module is no longer running in redundant mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I look for when upgrading legacy power rails to this module?\u003c\/strong\u003e\u003cbr\u003e\nVerify your Power Rail current consumption does not exceed the 4 A limit of the \u003cstrong\u003e\u003cspan style=\"color: #27ae60;\"\u003eKFD2-EB2.R4A.B\u003c\/span\u003e\u003c\/strong\u003e. Ensure your input power sources have synchronized voltages to balance the load effectively.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the Ex nA nC certification affect my installation location?\u003c\/strong\u003e\u003cbr\u003e\nThis certification allows the module to be placed within hazardous area control panels rated for Zone 2 or Class I Div 2, significantly reducing the cost of remote IO enclosures.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":45144131207350,"sku":"KFD2-EB2.R4A.B","price":104.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/KFD2-EB2.R4A.B.jpg?v=1779868669","url":"https:\/\/www.plcsparehub.com\/products\/kfd2-eb2-r4a-b-p-f-power-feed-high-reliability-redundant-supply-module","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}