{"product_id":"kfd2-sr2-ex2-2s-pepperl-fuchs-isolated-switch-amplifier-sil2-interface-module","title":"KFD2-SR2-EX2.2S Pepperl+Fuchs Isolated Switch Amplifier | SIL2 Interface Module","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan style=\"color: #1565c0;\"\u003eKFD2-SR2-EX2.2S\u003c\/span\u003e Pepperl+Fuchs Isolated Switch Amplifier\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: #1565c0;\"\u003e\u003cstrong\u003eKFD2-SR2-EX2.2S\u003c\/strong\u003e\u003c\/span\u003e is a high-reliability isolated switch amplifier designed for hazardous area signal interfacing applications.\u003c\/p\u003e\n\u003cp\u003eThis module supports NAMUR sensors and dry contact inputs. It provides galvanic isolation between field devices and control systems.\u003c\/p\u003e\n\u003cp\u003eThe compact DIN rail housing simplifies cabinet integration in industrial automation environments. Its SIL 2 functional safety capability supports critical process protection architectures.\u003c\/p\u003e\n\u003cp\u003eThe design targets stable signal transmission in petrochemical, power generation, and process control systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFunctional Structure Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan style=\"color: #1565c0;\"\u003eKFD2-SR2-EX2.2S\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDevice Category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIsolated Switch Amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Signal Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDigital Input \/ NAMUR Sensor Interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSafety Classification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIL 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHousing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB2 DIN Rail Housing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eCore Electrical Characteristics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Parameters\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eOperating voltage: 20 to 30 V DC\u003c\/li\u003e\n\u003cli\u003eMaximum ripple: ≤10%\u003c\/li\u003e\n\u003cli\u003eRated current: ≤50 mA\u003c\/li\u003e\n\u003cli\u003ePower consumption below 1.3 W\u003c\/li\u003e\n\u003cli\u003ePower dissipation: 1 W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Signal Interface\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSupports NAMUR sensors according to EN 60947-5-6\u003c\/li\u003e\n\u003cli\u003eOpen circuit voltage approximately 8 V DC\u003c\/li\u003e\n\u003cli\u003eShort-circuit current approximately 8 mA\u003c\/li\u003e\n\u003cli\u003eSwitching threshold: 1.2 to 2.1 mA\u003c\/li\u003e\n\u003cli\u003eIntegrated line fault detection capability\u003c\/li\u003e\n\u003cli\u003eDetects wire break and short-circuit conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Output Performance\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eFour relay output channels available\u003c\/li\u003e\n\u003cli\u003eRelay contact rating: 50 V AC \/ 1 A\u003c\/li\u003e\n\u003cli\u003eDC resistive load capability: 40 V DC \/ 1 A\u003c\/li\u003e\n\u003cli\u003eMinimum switching current: 1 mA \/ 24 V DC\u003c\/li\u003e\n\u003cli\u003eSwitching frequency up to 10 Hz\u003c\/li\u003e\n\u003cli\u003eMechanical life reaches 10⁸ switching cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIsolation Protection\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e300 V reinforced insulation between input and output\u003c\/li\u003e\n\u003cli\u003eSafe electrical isolation according to IEC\/EN 60079-11\u003c\/li\u003e\n\u003cli\u003e375 V peak isolation capability\u003c\/li\u003e\n\u003cli\u003eIntegrated galvanic isolation architecture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eHazardous Area Compliance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertification Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eApproval Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eATEX\u003c\/td\u003e\n\u003ctd\u003eII 1 G Ex ia IIC T4 Ga\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIECEx\u003c\/td\u003e\n\u003ctd\u003eEx ec nC IIC T4 Gc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFM\u003c\/td\u003e\n\u003ctd\u003eFM19US0207X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSA\u003c\/td\u003e\n\u003ctd\u003eControl Drawing 116-0047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEMC Compliance\u003c\/td\u003e\n\u003ctd\u003eEN 61326-1 Industrial Locations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eMechanical and Installation Details\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 20 × 119 × 115 mm\u003c\/li\u003e\n\u003cli\u003eWeight: approximately 150 g\u003c\/li\u003e\n\u003cli\u003eProtection class: IP20\u003c\/li\u003e\n\u003cli\u003eMounting method: 35 mm DIN rail\u003c\/li\u003e\n\u003cli\u003eConfiguration via integrated DIP switches\u003c\/li\u003e\n\u003cli\u003eFront labeling area simplifies maintenance identification\u003c\/li\u003e\n\u003cli\u003eLED indicators provide channel status visibility\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\u003cspan style=\"color: #1565c0;\"\u003e\u003cstrong\u003eKFD2-SR2-EX2.2S\u003c\/strong\u003e\u003c\/span\u003e is widely deployed in hazardous process automation systems requiring reliable isolation and stable relay switching.\u003c\/p\u003e\n\u003cp\u003eThe module performs especially well in refinery instrumentation panels and burner management systems. Its low power consumption improves thermal management inside dense control cabinets.\u003c\/p\u003e\n\u003cp\u003eField engineers value the fast fault identification capability. Integrated line monitoring reduces troubleshooting time during commissioning and maintenance.\u003c\/p\u003e\n\u003cp\u003eCompared with standard relay isolators, this model offers stronger hazardous area integration flexibility and higher functional safety coverage.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eRecommended Equipment Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDCS distributed control systems\u003c\/li\u003e\n\u003cli\u003ePLC digital input interfaces\u003c\/li\u003e\n\u003cli\u003eNAMUR proximity sensors\u003c\/li\u003e\n\u003cli\u003eEmergency shutdown systems\u003c\/li\u003e\n\u003cli\u003eProcess alarm systems\u003c\/li\u003e\n\u003cli\u003eGas detection signal interfaces\u003c\/li\u003e\n\u003cli\u003eHazardous area instrumentation cabinets\u003c\/li\u003e\n\u003cli\u003eRefinery automation systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplication Scenarios\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIntrinsic safety signal isolation\u003c\/li\u003e\n\u003cli\u003eHazardous area switching applications\u003c\/li\u003e\n\u003cli\u003eDigital status signal transfer\u003c\/li\u003e\n\u003cli\u003eProcess interlock systems\u003c\/li\u003e\n\u003cli\u003eIndustrial relay interface expansion\u003c\/li\u003e\n\u003cli\u003eSafety instrumented systems\u003c\/li\u003e\n\u003cli\u003eRemote field sensor monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eDiagnostic and Monitoring Capability\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWire break detection support\u003c\/li\u003e\n\u003cli\u003eShort-circuit fault indication\u003c\/li\u003e\n\u003cli\u003eRelay switching state monitoring\u003c\/li\u003e\n\u003cli\u003eChannel status indication through LEDs\u003c\/li\u003e\n\u003cli\u003eImproved fault localization efficiency\u003c\/li\u003e\n\u003cli\u003eSupports preventive maintenance workflows\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eEnvironmental Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating temperature: -20°C to +60°C\u003c\/li\u003e\n\u003cli\u003eDesigned for industrial indoor applications\u003c\/li\u003e\n\u003cli\u003eSuitable for industrial EMC environments\u003c\/li\u003e\n\u003cli\u003eStable performance under continuous operation\u003c\/li\u003e\n\u003cli\u003eSupports high-density cabinet installation layouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping and Warranty Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOriginal factory-packed product\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e12-month warranty support\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFast shipping within 24–48 hours\u003c\/li\u003e\n\u003cli\u003eWorldwide delivery service available\u003c\/li\u003e\n\u003cli\u003eCourier support via FedEx, UPS, and DHL\u003c\/li\u003e\n\u003cli\u003eIndustrial protective export packaging included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eProfessional FAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhy are NAMUR interfaces preferred in hazardous areas?\u003c\/strong\u003e\n\u003cp\u003eNAMUR signaling reduces power levels and improves intrinsic safety compatibility in explosive environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat advantage does galvanic isolation provide?\u003c\/strong\u003e\n\u003cp\u003eIsolation prevents ground loops and protects control systems from field-side electrical disturbances.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow can engineers reduce relay wear during operation?\u003c\/strong\u003e\n\u003cp\u003eMaintain switching frequency within specifications and avoid inductive overload conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhich applications benefit most from SIL 2 capability?\u003c\/strong\u003e\n\u003cp\u003eEmergency shutdown systems and critical interlock circuits commonly require SIL-rated signal interfaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat installation practice improves long-term reliability?\u003c\/strong\u003e\n\u003cp\u003eSeparate signal wiring from high-voltage power cables to minimize electromagnetic interference exposure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/KFD2-SR2-Ex2.2S.png?v=1779259704\" alt=\"\"\u003e\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default 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