{"product_id":"kfd2-sr2-ex1-w-lb-pepperl-fuchs-switch-amplifier-k-system","title":"KFD2-SR2-Ex1-W.LB Pepperl+Fuchs Switch Amplifier K-System","description":"\u003cp\u003eConfigured for discrete signal transfer and line fault detection in intrinsically safe control loops, the \u003cstrong\u003ePepperl+Fuchs KFD2-SR2-Ex1-W.LB\u003c\/strong\u003e (\u003cstrong\u003eKFD2-SR2-Ex1-W.LB\u003c\/strong\u003e Switch Amplifier) provides direct physical\/electrical execution.\u003c\/p\u003e\n\u003ch3\u003eTechnical Performance Matrix\u003c\/h3\u003e\n\u003cfigure\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eKFD2-SR2-Ex1-W.LB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eGermany\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eApprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e20 mm x 119 mm x 115 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 deg C to +60 deg C (-4 deg F to +140 deg F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMax. 1.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e19 VDC to 30 VDC via Power Rail or terminals 14+, 15-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal Input\u003c\/td\u003e\n\u003ctd\u003e1-channel NAMUR sensor input or dry mechanical contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Output\u003c\/td\u003e\n\u003ctd\u003e1 changeover contact (SPDT), 250 VAC \/ 2 A, 40 VDC \/ 2 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLine Fault Detection\u003c\/td\u003e\n\u003ctd\u003eLead breakage and short-circuit monitoring (switchable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation\u003c\/td\u003e\n\u003ctd\u003eSafe electrical isolation between input, output, and power circuits per EN 60079-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIntrinsic Safety and Surge Voltage Protection Limits\u003c\/h3\u003e\n\u003cp\u003eThe device operates as a galvanically isolated intrinsic safety (Ex i) barrier certified for hazardous location deployment (up to Ex ia IIC). It isolates binary field signals from NAMUR proximity sensors or mechanical switches located in Zone 0, 1, or 2 environments. Integrated energy-limiting circuitry limits voltage and current surges entering hazardous zones, preventing electrical sparks under fault conditions. Safe galvanic isolation withstands peak test voltages up to 375 V between the field input, relay output, and power supply networks.\u003c\/p\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMechanical Mounting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSnap the housing vertically onto a standard 35 mm DIN mounting rail (EN 60079-15) or position directly onto an integrated Power Rail system.\u003c\/li\u003e\n\u003cli\u003eMaintain a clearance of at least 50 mm above and below the module housing to allow adequate air circulation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWiring and Shielding\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMaintain strict 50 mm physical separation between intrinsically safe blue terminal circuits and non-intrinsically safe power\/relay field wiring.\u003c\/li\u003e\n\u003cli\u003eConnect NAMUR field sensors using twisted-pair shielded cabling. Connect cable shields to a designated earth ground bar at the enclosure cabinet entry point.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOrder Code: KFD2-SR2-Ex1-W.LB\u003c\/li\u003e\n\u003cli\u003eIncluded Items: 1x KFD2-SR2-Ex1-W.LB Switch Amplifier module, removable screw terminal connectors, quick installation instruction guide.\u003c\/li\u003e\n\u003cli\u003eOptional Accessories: Power Rail system UPR-03, Power Feed Module KFD2-EB2.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLogistics Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDelivery time: 3-5 days when payment finish\u003c\/li\u003e\n\u003cli\u003eFast dispatch via DHL, FEDEX, or UPS international freight\u003c\/li\u003e\n\u003cli\u003eShipped in reinforced anti-static industrial packaging with ESD protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How is line fault detection (LFD) configured on the KFD2-SR2-Ex1-W.LB? A: Line fault detection for lead breakage and short-circuit conditions is selected using DIP switches located on the front panel of the housing.\u003c\/p\u003e\n\u003cp\u003eQ: Can mechanical switch contacts be connected directly to the input terminals? A: Yes, simple mechanical contacts can be connected. When line fault detection is enabled, external resistors must be installed across the switch contact to enable loop monitoring.\u003c\/p\u003e\n\u003cp\u003eQ: What power options exist for powering the module? A: The module accepts 24 VDC auxiliary power either directly through terminal connections 14+ and 15- or via the DIN-rail mounted Power Rail system bus.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum switching frequency of the relay output? A: The SPDT relay output operates at a maximum switching frequency of 10 Hz due to mechanical contact transition constraints.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":47508764459181,"sku":"KFD2-SR2-EX1-WLB","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/kfd2-sr2-ex1.w.lb_1.jpg?v=1789090644","url":"https:\/\/www.maxwellplc.com\/ga\/products\/kfd2-sr2-ex1-w-lb-pepperl-fuchs-switch-amplifier-k-system","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}