{"product_id":"kfd2-stc4-ex2-pepperl-fuchs-smart-transmitter-power-supply-k-system","title":"KFD2-STC4-Ex2 Pepperl+Fuchs Smart Transmitter Power Supply K-System","description":"\u003cp\u003eThe \u003cstrong\u003ePepperl+Fuchs KFD2-STC4-Ex2\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eKFD2-STC4-Ex2\u003c\/strong\u003e Smart Transmitter Power Supply, operates as a dedicated hardware component for galvanic isolation and intrinsically safe power supply to 2-wire SMART transmitters within hazardous area field networks.\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-STC4-Ex2\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. 1.8 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\u003eNumber of Channels\u003c\/td\u003e\n\u003ctd\u003e2 channels (isolated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Signal Input\u003c\/td\u003e\n\u003ctd\u003e2-wire SMART transmitters (4-20 mA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl Side Output\u003c\/td\u003e\n\u003ctd\u003e4-20 mA (active or passive output depending on terminal configuration)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGalvanic Isolation\u003c\/td\u003e\n\u003ctd\u003eSafe isolation according to EN 60079-11, voltage peak 375 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIntrinsic Safety and Isolation Parameters\u003c\/h3\u003e\n\u003cp\u003eThe module incorporates certified intrinsically safe (Ex i) barriers designed to limit electrical energy delivered to hazardous location field devices. Galvanic isolation prevents ground loops and voltage spikes between the hazardous field circuits, power supply rail, and non-hazardous control system I\/O. The internal current-limiting components maintain safety limits under fault conditions up to Ex ia IIC standards, preventing spark ignition in flammable gas or dust atmospheres.\u003c\/p\u003e\n\u003ch3\u003eDelivery 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\u003eDispatched in heavy-duty anti-static industrial packaging with impact-resistant padding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSite Mounting and Electrical Wiring\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDIN-Rail Assembly\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMount vertically onto standard 35 mm DIN mounting rail (EN 60079-15) or integrate via Power Rail system.\u003c\/li\u003e\n\u003cli\u003eMaintain a minimum clear spacing of 50 mm above and below the module for natural thermal convection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eField Wiring \u0026amp; Earthing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeparate hazardous (Ex i) blue terminals from non-hazardous control terminals by at least 50 mm space distance or via partition plates.\u003c\/li\u003e\n\u003cli\u003eConnect field transmitter wiring using twisted-shielded cable pairs. Terminate cable shields to dedicated grounding points at the control cabinet entry ground bar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePrimary Order Reference: KFD2-STC4-Ex2\u003c\/li\u003e\n\u003cli\u003ePackage Contents: 1x KFD2-STC4-Ex2 isolated transmitter power supply module, 1x terminal plug set, 1x quick setup instruction sheet.\u003c\/li\u003e\n\u003cli\u003eOptional Accessories: Power Rail UPR-03, Power Feed Module KFD2-EB2.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Query Resolution\u003c\/h3\u003e\n\u003cp\u003eQ: Does the KFD2-STC4-Ex2 support bi-directional HART signal communication?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the unit transmits HART communication signals bidirectionally between the 4-20 mA SMART field transmitters and the control system terminals.\u003c\/p\u003e\n\u003cp\u003eQ: What is the maximum voltage peak rating for the galvanic isolation barrier?\u003c\/p\u003e\n\u003cp\u003eA: The safe galvanic isolation between field circuits and control\/power circuits is rated for a peak voltage test value of 375 V according to EN 60079-11.\u003c\/p\u003e\n\u003cp\u003eQ: Can the unit be powered directly from the standard terminal blocks instead of the Power Rail?\u003c\/p\u003e\n\u003cp\u003eA: Yes, power can be supplied either via the Power Rail bus system or directly using screw\/spring terminals 14+ and 15-.\u003c\/p\u003e\n\u003cp\u003eQ: How does the channel density affect power distribution across adjacent modules?\u003c\/p\u003e\n\u003cp\u003eA: The module dissipates a maximum of 1.8 W. When installing multiple units adjacently without spacing, verify total power dissipation within the enclosure to remain under the max operating limit of +60 deg C.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":47508764426413,"sku":"KFD2..STC4..EX2","price":166.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/kfd2-st2-ex1.lb_1.jpg?v=1789090638","url":"https:\/\/www.maxwellplc.com\/ru\/products\/kfd2-stc4-ex2-pepperl-fuchs-smart-transmitter-power-supply-k-system","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}