{"product_id":"kfd2-stc4-ex1-2o-pepperl-fuchs-power-supply-isolated-barrier","title":"KFD2-STC4-Ex1.2O Pepperl+Fuchs Power Supply Isolated Barrier","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #c0392b;\"\u003eKFD2-STC4-Ex1.2O\u003c\/span\u003e SMART Transmitter Power Supply\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #c0392b;\"\u003ePepperl+Fuchs KFD2-STC4-Ex1.2O\u003c\/span\u003e\u003c\/strong\u003e is a high-integrity isolated barrier for hazardous-area analog signal transmission.\u003c\/p\u003e\n\u003cp\u003eThe module powers SMART transmitters while maintaining galvanic isolation between field and control systems.\u003c\/p\u003e\n\u003cp\u003eIts dual-output architecture enables simultaneous signal distribution to multiple control channels.\u003c\/p\u003e\n\u003cp\u003eThe device supports HART, BRAIN, and Foxboro communication protocols.\u003c\/p\u003e\n\u003cp\u003eThis compact DIN-rail barrier improves signal integrity in process automation environments.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Configuration Breakdown\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eConfiguration Layer\u003c\/th\u003e\n\u003cth align=\"left\"\u003eEngineering Definition\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #c0392b;\"\u003eKFD2-STC4-Ex1.2O\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSMART transmitter isolated barrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e1-Channel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle analog input isolation architecture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDual Output\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo isolated 0\/4-20 mA outputs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSIL 3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFunctional safety integrity compliance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Rail\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC DIN rail supply integration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eSignal Processing Architecture\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1-channel isolated barrier design\u003c\/li\u003e\n\u003cli\u003eSupports 2-wire SMART transmitters\u003c\/li\u003e\n\u003cli\u003eSupports 3-wire SMART transmitters\u003c\/li\u003e\n\u003cli\u003eSupports 2-wire SMART current sources\u003c\/li\u003e\n\u003cli\u003eDual isolated analog output channels\u003c\/li\u003e\n\u003cli\u003eIntegrated HART communication transfer\u003c\/li\u003e\n\u003cli\u003eBidirectional digital signal transmission\u003c\/li\u003e\n\u003cli\u003eIntegrated test sockets for HART communicators\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSupported Communication Protocols\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHART protocol\u003c\/li\u003e\n\u003cli\u003eBRAIN protocol\u003c\/li\u003e\n\u003cli\u003eFoxboro SMART protocol\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eParameter\u003c\/th\u003e\n\u003cth align=\"left\"\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #c0392b;\"\u003eKFD2-STC4-Ex1.2O\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Type\u003c\/td\u003e\n\u003ctd\u003eSMART transmitter power supply isolated barrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Type\u003c\/td\u003e\n\u003ctd\u003eAnalog input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Integrity Level\u003c\/td\u003e\n\u003ctd\u003eSIL 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e20 to 35 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e2.4 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Dissipation\u003c\/td\u003e\n\u003ctd\u003e1.8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Signal\u003c\/td\u003e\n\u003ctd\u003e0\/4 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Signal\u003c\/td\u003e\n\u003ctd\u003eDual 0\/4 to 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLoad Resistance\u003c\/td\u003e\n\u003ctd\u003e0 to 550 Ω at 20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRipple\u003c\/td\u003e\n\u003ctd\u003e50 µA rms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSettling Time\u003c\/td\u003e\n\u003ctd\u003e200 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRise\/Fall Time\u003c\/td\u003e\n\u003ctd\u003e20 µs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBandwidth\u003c\/td\u003e\n\u003ctd\u003e0 to 7.5 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Temperature\u003c\/td\u003e\n\u003ctd\u003e-20°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of Protection\u003c\/td\u003e\n\u003ctd\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation Voltage\u003c\/td\u003e\n\u003ctd\u003e375 V peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Dimensions\u003c\/td\u003e\n\u003ctd\u003e20 × 124 × 115 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 200 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e35 mm DIN rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eHazardous Area Certification Matrix\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth align=\"left\"\u003eCertification\u003c\/th\u003e\n\u003cth align=\"left\"\u003eApproval Scope\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eATEX\u003c\/td\u003e\n\u003ctd\u003eBAS 99 ATEX 7060 X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIECEx\u003c\/td\u003e\n\u003ctd\u003eIECEx BAS 04.0016X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUL\u003c\/td\u003e\n\u003ctd\u003ecULus approval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIEC\/EN 61508\u003c\/td\u003e\n\u003ctd\u003eSIL 3 functional safety\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExplosion Protection\u003c\/td\u003e\n\u003ctd\u003eEx ia \/ Ex nA certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eIntrinsic Safety Parameters\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum safe voltage Um: 250 V\u003c\/li\u003e\n\u003cli\u003eOpen circuit voltage Uo: 25.4 V\u003c\/li\u003e\n\u003cli\u003eMaximum output current Io: 115 mA\u003c\/li\u003e\n\u003cli\u003eMaximum power Po: 584 mW\u003c\/li\u003e\n\u003cli\u003eInternal capacitance Ci: 12 nF\u003c\/li\u003e\n\u003cli\u003eInternal inductance Li: 0 mH\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic and Reliability Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntegrated HART communication monitoring\u003c\/li\u003e\n\u003cli\u003eBidirectional digital signal transparency\u003c\/li\u003e\n\u003cli\u003eLow-noise analog signal transfer\u003c\/li\u003e\n\u003cli\u003eElectrical isolation supervision\u003c\/li\u003e\n\u003cli\u003eFront LED operating indication\u003c\/li\u003e\n\u003cli\u003eIntegrated test sockets for commissioning\u003c\/li\u003e\n\u003cli\u003eFunctional safety process integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSuitable Equipment and Applications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProcess automation systems\u003c\/li\u003e\n\u003cli\u003eHazardous-area instrumentation loops\u003c\/li\u003e\n\u003cli\u003eOil and gas process plants\u003c\/li\u003e\n\u003cli\u003eChemical processing facilities\u003c\/li\u003e\n\u003cli\u003eRefinery automation systems\u003c\/li\u003e\n\u003cli\u003eHART-enabled field transmitter networks\u003c\/li\u003e\n\u003cli\u003eIntrinsic safety signal interfaces\u003c\/li\u003e\n\u003cli\u003eIndustrial DCS and PLC environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eGlobal PLC Spare HUB's Insight\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #c0392b;\"\u003eKFD2-STC4-Ex1.2O\u003c\/span\u003e\u003c\/strong\u003e provides stable intrinsic safety isolation for demanding process automation environments.\u003c\/p\u003e\n\u003cp\u003eThe dual-output structure simplifies signal distribution across redundant control architectures.\u003c\/p\u003e\n\u003cp\u003eEngineers value the integrated HART communication access during commissioning and diagnostics.\u003c\/p\u003e\n\u003cp\u003eThe SIL 3 certification supports high-integrity safety instrumented system applications.\u003c\/p\u003e\n\u003cp\u003eThe module performs effectively in hazardous-area installations requiring reliable analog signal isolation.\u003c\/p\u003e\n\u003cp\u003eThe compact DIN-rail structure improves cabinet space utilization in process industries.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eEngineering Installation Recommendations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse shielded instrumentation cable for analog signal integrity\u003c\/li\u003e\n\u003cli\u003eVerify hazardous-area grounding practices before startup\u003c\/li\u003e\n\u003cli\u003eMaintain proper separation from high-voltage cabling\u003c\/li\u003e\n\u003cli\u003eInspect terminal tightness during preventive maintenance\u003c\/li\u003e\n\u003cli\u003eValidate HART loop resistance during commissioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping and Logistics Service\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFedEx international express shipping available\u003c\/li\u003e\n\u003cli\u003eUPS industrial logistics supported\u003c\/li\u003e\n\u003cli\u003eDHL worldwide delivery service available\u003c\/li\u003e\n\u003cli\u003eProtective anti-static packaging included\u003c\/li\u003e\n\u003cli\u003eTypical dispatch within 24-48 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e12-Month Warranty Coverage\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e12-month warranty support included\u003c\/li\u003e\n\u003cli\u003eTechnical assistance available during warranty period\u003c\/li\u003e\n\u003cli\u003eFunctional inspection completed before shipment\u003c\/li\u003e\n\u003cli\u003eIndustrial export-grade protective packaging included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProfessional FAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does this barrier support dual analog outputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDual outputs allow simultaneous signal transmission to separate control systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does SIL 3 improve industrial process safety?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSIL 3 certification supports higher integrity in safety instrumented systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is galvanic isolation critical in hazardous-area applications?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIsolation prevents dangerous electrical transfer between safe and hazardous zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat installation factor most affects HART communication stability?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProper loop resistance and shielded cabling improve communication reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhich industries commonly deploy this isolated barrier?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOil, gas, refining, and chemical facilities frequently use this signal isolation device.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/KFD2-STC4-EX1.2O.png?v=1779951699\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":45146311131318,"sku":"KFD2-STC4-Ex1.2O","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/KFD2-STC4-Ex1.2O.jpg?v=1779951690","url":"https:\/\/www.plcsparehub.com\/products\/kfd2-stc4-ex1-2o-pepperl-fuchs-power-supply-isolated-barrier","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}