{"title":"Isolated Barriers \u0026 Switch Amplifiers","description":"\u003cp\u003eBrowse Isolated Barriers \u0026amp; Switch Amplifiers at Valves UK — industrial valves, actuation and automation equipment with UK delivery and technical support.\u003c\/p\u003e","products":[{"product_id":"pepperl-fuchs-kfd2-sr2-ex2-w-isolated-barrier","title":"Pepperl+Fuchs KFD2-SR2-Ex2.W – Isolated Barrier Switch Amplifier","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KFD2-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier from the K-System range. It transfers digital signals from NAMUR sensors or dry contacts located in a hazardous area to relay contact outputs in the safe area, with reinforced galvanic isolation between input, output and power supply circuits.\u003c\/p\u003e\n\u003cp\u003eThe module is powered at 24 V DC via the Pepperl+Fuchs Power Rail or terminals, and its intrinsically safe [Ex ia] inputs are certified under ATEX and IECEx. Line fault detection (LFD), a reversible mode of operation set by DIP switch and suitability for applications up to SIL 2 (SC 3) to IEC\/EN 61508 make it a dependable interface for level, position and limit-switch signals in process plants.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KFD2-SR2-Ex2.W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Isolated Barrier Switch Amplifier\u003c\/li\u003e\n\u003cli\u003e2-channel isolated barrier with relay contact outputs\u003c\/li\u003e\n\u003cli\u003eInputs for NAMUR sensors (EN 60947-5-6) or dry contacts\u003c\/li\u003e\n\u003cli\u003e24 V DC supply via Power Rail or terminals\u003c\/li\u003e\n\u003cli\u003eLine fault detection (lead breakage and short circuit)\u003c\/li\u003e\n\u003cli\u003eReversible mode of operation, configured by DIP switches\u003c\/li\u003e\n\u003cli\u003eUp to SIL 2 (SC 3) to IEC\/EN 61508\u003c\/li\u003e\n\u003cli\u003eATEX and IECEx certified [Ex ia] inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKFD2-SR2-Ex2.W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e19 … 30 V DC (Power Rail or terminals 14+, 15-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated current\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 50 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower dissipation\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 1 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInput\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact; approx. 8 V DC \/ 8 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching point \/ hysteresis\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1.2 … 2.1 mA \/ approx. 0.2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.1 mA, short circuit I \u0026gt; 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2 × relay (terminals 7, 8, 9 and 10, 11, 12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e250 V AC \/ 2 A \/ cos φ \u0026gt; 0.75; 40 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eFunctional safety\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eSIL 2, systematic capability SC 3 (IEC\/EN 61508)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-40 … 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e20 x 119 x 115 mm (W x H x D), housing type B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePTB 00 ATEX 2080 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I; TÜV 99 ATEX 1493 X — II 3G Ex ec nC IIC T4 Gc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx PTB 11.0034, IECEx TUN 19.0013X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOther approvals\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eFM (FM19US0207X), UL\/cULus (E106378)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHazardous-area limit switch and valve position feedback\u003c\/li\u003e\n\u003cli\u003eLevel switch signals from tanks and vessels in Ex zones\u003c\/li\u003e\n\u003cli\u003eInterfacing NAMUR proximity sensors to PLC and DCS digital inputs\u003c\/li\u003e\n\u003cli\u003eSafety instrumented functions up to SIL 2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eMount on a 35 mm DIN rail in the safe area or, where permitted by the Ex ec certificate, in Zone 2. The unit can draw its 24 V DC supply from the Power Rail, which also carries the collective error message. Field wiring connects to terminals 1–6 and the relay outputs to terminals 7–12. Always follow the certificate, instruction manual and control drawings when designing intrinsically safe loops.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KFD2-SR2-Ex2.W?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KFD2-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier from the K-System range. It transfers digital signals from NAMUR sensors or dry contacts located in a hazardous area to relay contact outputs in the safe area, with reinforced galvanic isolation between input, output and power supply circuits.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KFD2-SR2-Ex2.W need?\u003c\/h3\u003e\u003cp\u003e19 … 30 V DC (Power Rail or terminals 14+, 15-).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KFD2-SR2-Ex2.W?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/203355_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KFD2-SR2-Ex2.W datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/95426\" target=\"_blank\" rel=\"noopener\"\u003eKFD2-SR2-Ex2.W on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sr2-ex1-w-switch-amplifier\"\u003ePepperl+Fuchs KFD2-SR2-Ex1.W – Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sra-ex4-switch-amplifier\"\u003ePepperl+Fuchs KFD2-SRA-Ex4 – 4-Channel Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFD2-SR2-Ex2.W. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161026687301,"sku":"KFD2-SR2-Ex2.W","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kfd2-sr2-ex2-w-isolated-barrier-switch-amplifier.jpg?v=1794323780"},{"product_id":"pepperl-fuchs-kfd2-sr2-ex1-w-switch-amplifier","title":"Pepperl+Fuchs KFD2-SR2-Ex1.W – Switch Amplifier","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KFD2-SR2-Ex1.W is a 1-channel isolated barrier switch amplifier for transferring digital signals from hazardous areas to the safe area. It accepts a NAMUR sensor or dry contact on its intrinsically safe input and switches a relay contact output, keeping input, output and supply circuits galvanically isolated with reinforced insulation.\u003c\/p\u003e\n\u003cp\u003ePart of the K-System, the module runs from 24 V DC via the Power Rail or terminals. Line fault detection, a reversible mode of operation selected by DIP switch and suitability up to SIL 2 (SC 3) to IEC\/EN 61508 make it well suited to single-point switching duties such as limit switches, level switches and valve position feedback.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KFD2-SR2-Ex1.W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Switch Amplifier\u003c\/li\u003e\n\u003cli\u003e1-channel isolated barrier with relay contact output\u003c\/li\u003e\n\u003cli\u003eInput for NAMUR sensors or dry contacts\u003c\/li\u003e\n\u003cli\u003e24 V DC supply via Power Rail or terminals\u003c\/li\u003e\n\u003cli\u003eLine fault detection (LFD)\u003c\/li\u003e\n\u003cli\u003eReversible mode of operation via DIP switch\u003c\/li\u003e\n\u003cli\u003eUp to SIL 2 (SC 3) to IEC\/EN 61508\u003c\/li\u003e\n\u003cli\u003eATEX and IECEx certified [Ex ia] input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKFD2-SR2-Ex1.W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e19 … 30 V DC (Power Rail or terminals 14+, 15-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated current\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 35 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower dissipation\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 0.7 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInput\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact (terminals 1+, 2+, 3-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching point \/ hysteresis\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1.2 … 2.1 mA \/ approx. 0.2 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.1 mA, short circuit I \u0026gt; 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutput\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1 × relay (terminals 7, 8, 9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e250 V AC \/ 2 A \/ cos φ \u0026gt; 0.75; 40 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e\u0026lt; 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eFunctional safety\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eSIL 2, SC 3 (IEC\/EN 61508)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-40 … 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e20 x 119 x 115 mm (W x H x D), housing type B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePTB 00 ATEX 2080 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I; TÜV 99 ATEX 1493 X — II 3G Ex ec nC IIC T4 Gc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx PTB 11.0034, IECEx TUN 19.0013X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOther approvals\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eFM (FM19US0207X), UL\/cULus (E106378)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSingle limit switch or proximity sensor signals from Ex zones\u003c\/li\u003e\n\u003cli\u003eValve open\/closed position indication\u003c\/li\u003e\n\u003cli\u003eLevel switch alarms to PLC and DCS inputs\u003c\/li\u003e\n\u003cli\u003eSIL 2 safety loops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eDIN rail mounting with 24 V DC supplied from the Power Rail or terminals 14+\/15-. Connect the field device to terminals 1+, 2+, 3- and the relay output to terminals 7, 8, 9. Configure mode of operation and line fault detection with the front DIP switches. Observe the ATEX\/IECEx certificate and instruction manual for intrinsically safe loop design.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KFD2-SR2-Ex1.W?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KFD2-SR2-Ex1.W is a 1-channel isolated barrier switch amplifier for transferring digital signals from hazardous areas to the safe area. It accepts a NAMUR sensor or dry contact on its intrinsically safe input and switches a relay contact output, keeping input, output and supply circuits galvanically isolated with reinforced insulation.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KFD2-SR2-Ex1.W need?\u003c\/h3\u003e\u003cp\u003e19 … 30 V DC (Power Rail or terminals 14+, 15-).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KFD2-SR2-Ex1.W?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/70101737_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KFD2-SR2-Ex1.W datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/95424\" target=\"_blank\" rel=\"noopener\"\u003eKFD2-SR2-Ex1.W on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sr2-ex2-w-isolated-barrier\"\u003ePepperl+Fuchs KFD2-SR2-Ex2.W – Isolated Barrier Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfa5-sr2-ex1-w-switch-amplifier-115v-ac\"\u003ePepperl+Fuchs KFA5-SR2-Ex1.W – Switch Amplifier (115 V AC)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFD2-SR2-Ex1.W. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161071513925,"sku":"KFD2-SR2-Ex1.W","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kfd2-sr2-ex1-w-switch-amplifier.jpg?v=1794323888"},{"product_id":"pepperl-fuchs-kcd2-sr-ex2-isolated-barrier","title":"Pepperl+Fuchs KCD2-SR-Ex2 – Isolated Barrier Switch Amplifier","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KCD2-SR-Ex2 is a 2-channel isolated barrier switch amplifier in the space-saving 12.5 mm K-System housing. It transfers switching signals from NAMUR sensors or dry contacts in the hazardous area to two relay contact outputs in the safe area, with reinforced galvanic isolation between input, output and supply.\u003c\/p\u003e\n\u003cp\u003ePowered at 24 V DC via the Power Rail or terminals, the module provides line fault detection on each input and is suitable for applications up to SIL 2 (SC 3) to IEC\/EN 61508. Its narrow width allows high-density installation in marshalling and control cabinets, and its ATEX\/IECEx certification includes mounting in Zone 2.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KCD2-SR-Ex2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Isolated Barrier Switch Amplifier\u003c\/li\u003e\n\u003cli\u003e2-channel isolated barrier in a 12.5 mm wide housing\u003c\/li\u003e\n\u003cli\u003eInputs for NAMUR sensors or dry contacts\u003c\/li\u003e\n\u003cli\u003e2 relay contact outputs\u003c\/li\u003e\n\u003cli\u003e24 V DC supply via Power Rail or terminals\u003c\/li\u003e\n\u003cli\u003eLine fault detection (LFD)\u003c\/li\u003e\n\u003cli\u003eUp to SIL 2 (SC 3) to IEC\/EN 61508\u003c\/li\u003e\n\u003cli\u003eATEX and IECEx certified, Zone 2 mountable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKCD2-SR-Ex2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e19 … 30 V DC (Power Rail or terminals 9+, 10-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated current\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 46 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower dissipation\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 900 mW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact; approx. 8 V DC \/ 8 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.1 mA, short circuit I ≥ 6.5 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2 × relay (terminals 5, 6 and 7, 8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e250 V AC \/ 2 A \/ cos φ \u0026gt; 0.75; 30 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eFunctional safety\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eSIL 2, SC 3 (IEC\/EN 61508)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-40 … 70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e12.5 x 119 x 114 mm (W x H x D), housing type A2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 100 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBASEEFA 06 ATEX 0092 X — II 3(1)G Ex ec nC [ia Ga] IIC T4 Gc, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx BAS 06.0025 X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOther approvals\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eUL\/cULus (E106378)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh-density digital input marshalling\u003c\/li\u003e\n\u003cli\u003eNAMUR sensor and limit switch interfacing\u003c\/li\u003e\n\u003cli\u003eValve position feedback in Ex areas\u003c\/li\u003e\n\u003cli\u003eSIL 2 safety loops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eMount on a 35 mm DIN rail; supply 24 V DC via the Power Rail or terminals 9+\/10-. Field circuits connect to terminals 1–4 and the relay outputs to terminals 5–8. Functions are set with DIP switches. The device may be installed in Zone 2 under the Ex ec certification — follow the certificate and manual.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KCD2-SR-Ex2?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KCD2-SR-Ex2 is a 2-channel isolated barrier switch amplifier in the space-saving 12.5 mm K-System housing. It transfers switching signals from NAMUR sensors or dry contacts in the hazardous area to two relay contact outputs in the safe area, with reinforced galvanic isolation between input, output and supply.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KCD2-SR-Ex2 need?\u003c\/h3\u003e\u003cp\u003e19 … 30 V DC (Power Rail or terminals 9+, 10-).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KCD2-SR-Ex2?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/70112153_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KCD2-SR-Ex2 datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/99636\" target=\"_blank\" rel=\"noopener\"\u003eKCD2-SR-Ex2 on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sr2-ex2-w-isolated-barrier\"\u003ePepperl+Fuchs KFD2-SR2-Ex2.W – Isolated Barrier Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kcd2-stc-ex1-smart-transmitter-power-supply\"\u003ePepperl+Fuchs KCD2-STC-Ex1 – SMART Transmitter Power Supply\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KCD2-SR-Ex2. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161071579461,"sku":"KCD2-SR-Ex2","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kcd2-sr-ex2-isolated-barrier-switch-amplifier.jpg?v=1794323892"},{"product_id":"pepperl-fuchs-kfa5-sr2-ex2-w-switch-amplifier-115v-ac","title":"Pepperl+Fuchs KFA5-SR2-Ex2.W – Switch Amplifier (115 V AC)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KFA5-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier designed for installations with a 115 V AC supply. It transfers digital signals from NAMUR sensors or dry contacts in hazardous areas to two relay contact outputs, maintaining reinforced galvanic isolation between input, output and supply circuits.\u003c\/p\u003e\n\u003cp\u003eLine fault detection identifies lead breakage and short circuits on the field wiring, the mode of operation is reversible via DIP switches, and the module is suitable for applications up to SIL 2 to IEC\/EN 61508 \/ IEC\/EN 61511. It is a practical choice where control panels are AC powered rather than fed from a 24 V DC Power Rail.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KFA5-SR2-Ex2.W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Switch Amplifier (115 V AC)\u003c\/li\u003e\n\u003cli\u003e2-channel isolated barrier\u003c\/li\u003e\n\u003cli\u003e115 V AC supply (103.5 … 126 V AC, 45 … 65 Hz)\u003c\/li\u003e\n\u003cli\u003eInputs for NAMUR sensors or dry contacts\u003c\/li\u003e\n\u003cli\u003e2 relay contact outputs\u003c\/li\u003e\n\u003cli\u003eLine fault detection (LFD)\u003c\/li\u003e\n\u003cli\u003eReversible mode of operation\u003c\/li\u003e\n\u003cli\u003eUp to SIL 2 to IEC\/EN 61508 \/ IEC\/EN 61511\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKFA5-SR2-Ex2.W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e103.5 … 126 V AC, 45 … 65 Hz (terminals 14, 15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower consumption\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003emax. 1.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact; approx. 8 V DC \/ 8 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.1 mA, short circuit I \u0026gt; 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2 × relay (terminals 7, 8, 9 and 10, 11, 12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e253 V AC \/ 2 A \/ cos φ \u0026gt; 0.7; 126.5 V AC \/ 4 A; 40 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eFunctional safety\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eSIL 2 (IEC\/EN 61508 \/ IEC\/EN 61511)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-20 … 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e20 x 119 x 115 mm (W x H x D), housing type B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePTB 00 ATEX 2081 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx PTB 11.0031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAC-powered control panels interfacing Ex-area switches\u003c\/li\u003e\n\u003cli\u003eLimit switch and valve position signals\u003c\/li\u003e\n\u003cli\u003eLevel switch alarms\u003c\/li\u003e\n\u003cli\u003eSIL 2 safety loops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eDIN rail mounting in the safe area with 115 V AC supply on terminals 14 and 15 (this model does not use the Power Rail for supply). Field devices connect to terminals 1–6 and relay outputs to terminals 7–12. Configure via DIP switches and follow the certificate and manual for intrinsically safe wiring.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KFA5-SR2-Ex2.W?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KFA5-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier designed for installations with a 115 V AC supply. It transfers digital signals from NAMUR sensors or dry contacts in hazardous areas to two relay contact outputs, maintaining reinforced galvanic isolation between input, output and supply circuits.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KFA5-SR2-Ex2.W need?\u003c\/h3\u003e\u003cp\u003e103.5 … 126 V AC, 45 … 65 Hz (terminals 14, 15).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KFA5-SR2-Ex2.W?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/103370_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KFA5-SR2-Ex2.W datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/3134\" target=\"_blank\" rel=\"noopener\"\u003eKFA5-SR2-Ex2.W on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfa5-sr2-ex1-w-switch-amplifier-115v-ac\"\u003ePepperl+Fuchs KFA5-SR2-Ex1.W – Switch Amplifier (115 V AC)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfa6-sr2-ex2-w-switch-amplifier-230v-ac\"\u003ePepperl+Fuchs KFA6-SR2-Ex2.W – Switch Amplifier (230 V AC)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFA5-SR2-Ex2.W. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161072824645,"sku":"KFA5-SR2-Ex2.W","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kfa5-sr2-ex2-w-switch-amplifier.jpg?v=1794323894"},{"product_id":"pepperl-fuchs-kfa5-sr2-ex1-w-switch-amplifier-115v-ac","title":"Pepperl+Fuchs KFA5-SR2-Ex1.W – Switch Amplifier (115 V AC)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KFA5-SR2-Ex1.W is a 1-channel isolated barrier switch amplifier for 115 V AC powered installations. It reads a NAMUR sensor or dry contact located in a hazardous area and switches a relay contact output in the safe area, with reinforced galvanic isolation between input, output and supply.\u003c\/p\u003e\n\u003cp\u003eThe unit provides line fault detection, a reversible mode of operation selected by DIP switch, and suitability for applications up to SIL 2 to IEC\/EN 61508 \/ IEC\/EN 61511. Its intrinsically safe input is certified under ATEX and IECEx for Ex ia applications.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KFA5-SR2-Ex1.W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Switch Amplifier (115 V AC)\u003c\/li\u003e\n\u003cli\u003e1-channel isolated barrier\u003c\/li\u003e\n\u003cli\u003e115 V AC supply (103.5 … 126 V AC)\u003c\/li\u003e\n\u003cli\u003eInput for NAMUR sensors or dry contacts\u003c\/li\u003e\n\u003cli\u003eRelay contact output\u003c\/li\u003e\n\u003cli\u003eLine fault detection (LFD)\u003c\/li\u003e\n\u003cli\u003eReversible mode of operation\u003c\/li\u003e\n\u003cli\u003eUp to SIL 2 to IEC\/EN 61508 \/ IEC\/EN 61511\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKFA5-SR2-Ex1.W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e103.5 … 126 V AC, 45 … 65 Hz (terminals 14, 15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower consumption\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInput\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact (terminals 1+, 2+, 3-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.1 mA, short circuit I \u0026gt; 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutput\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1 × relay (terminals 7, 8, 9)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e253 V AC \/ 2 A \/ cos φ \u0026gt; 0.7; 126.5 V AC \/ 4 A; 40 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e\u0026lt; 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eFunctional safety\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eSIL 2 (IEC\/EN 61508 \/ IEC\/EN 61511)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-20 … 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e20 x 119 x 115 mm (W x H x D), housing type B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePTB 00 ATEX 2081 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx PTB 11.0031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSingle-point switching signals from Ex zones in AC-powered panels\u003c\/li\u003e\n\u003cli\u003eValve position feedback\u003c\/li\u003e\n\u003cli\u003eLevel and limit switch alarms\u003c\/li\u003e\n\u003cli\u003eSIL 2 safety loops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eDIN rail mounting with 115 V AC supply on terminals 14\/15. Connect the field device to terminals 1+, 2+, 3- and the relay output to terminals 7, 8, 9. Configure with the front DIP switches and follow the certificate and instruction manual for intrinsically safe loops.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KFA5-SR2-Ex1.W?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KFA5-SR2-Ex1.W is a 1-channel isolated barrier switch amplifier for 115 V AC powered installations. It reads a NAMUR sensor or dry contact located in a hazardous area and switches a relay contact output in the safe area, with reinforced galvanic isolation between input, output and supply.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KFA5-SR2-Ex1.W need?\u003c\/h3\u003e\u003cp\u003e103.5 … 126 V AC, 45 … 65 Hz (terminals 14, 15).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KFA5-SR2-Ex1.W?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/103371_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KFA5-SR2-Ex1.W datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/3132\" target=\"_blank\" rel=\"noopener\"\u003eKFA5-SR2-Ex1.W on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfa5-sr2-ex2-w-switch-amplifier-115v-ac\"\u003ePepperl+Fuchs KFA5-SR2-Ex2.W – Switch Amplifier (115 V AC)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sr2-ex1-w-switch-amplifier\"\u003ePepperl+Fuchs KFD2-SR2-Ex1.W – Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFA5-SR2-Ex1.W. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161083998533,"sku":"KFA5-SR2-Ex1.W","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kfa5-sr2-ex1-w-switch-amplifier.jpg?v=1794323909"},{"product_id":"pepperl-fuchs-kfd2-sra-ex4-switch-amplifier","title":"Pepperl+Fuchs KFD2-SRA-Ex4 – 4-Channel Switch Amplifier","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KFD2-SRA-Ex4 is a 4-channel isolated barrier switch amplifier for transferring digital signals from hazardous areas to the safe area. It accepts NAMUR sensors or dry contacts and provides four relay contact outputs in a single 20 mm wide K-System module.\u003c\/p\u003e\n\u003cp\u003ePepperl+Fuchs 2:1 technology lets two field devices share one pair of field wires, reducing field wiring by up to 50 %. The module is supplied at 24 V DC via the Power Rail or terminals, offers line fault detection and a reversible mode of operation, and its inputs are ATEX and IECEx certified for Ex ia applications.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KFD2-SRA-Ex4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e 4-Channel Switch Amplifier\u003c\/li\u003e\n\u003cli\u003e4-channel isolated barrier in one 20 mm module\u003c\/li\u003e\n\u003cli\u003eInputs for NAMUR sensors or dry contacts\u003c\/li\u003e\n\u003cli\u003e2:1 technology — up to 50 % less field wiring\u003c\/li\u003e\n\u003cli\u003e4 relay contact outputs\u003c\/li\u003e\n\u003cli\u003e24 V DC supply via Power Rail or terminals\u003c\/li\u003e\n\u003cli\u003eLine fault detection (LFD)\u003c\/li\u003e\n\u003cli\u003eReversible mode of operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKFD2-SRA-Ex4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e4-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e19 … 30 V DC (Power Rail or terminals 14+, 15-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated current\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e45 … 70 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower dissipation\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e1.2 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact (terminals 1–6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.15 mA, short circuit I \u0026gt; 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e4 × relay (terminals 7–12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e253 V AC \/ 2 A \/ cos φ \u0026gt; 0.7; 40 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 10 Hz (non-AC operation), ≤ 3 Hz (AC operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-20 … 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e20 x 119 x 115 mm (W x H x D), housing type B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eZELM 99 ATEX 0009 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx TUN 04.0003\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigh channel-count digital input systems\u003c\/li\u003e\n\u003cli\u003eValve position feedback with two sensors per valve\u003c\/li\u003e\n\u003cli\u003eReducing field cabling in retrofit projects\u003c\/li\u003e\n\u003cli\u003eNAMUR sensor interfacing to PLC\/DCS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eDIN rail mounting with 24 V DC from the Power Rail or terminals 14+\/15-. 2:1 operation is set by DIP switch; see the manual for the required field circuit arrangement. Relay outputs connect to terminals 7–12. Follow the certificate and manual for intrinsically safe loop design.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KFD2-SRA-Ex4?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KFD2-SRA-Ex4 is a 4-channel isolated barrier switch amplifier for transferring digital signals from hazardous areas to the safe area. It accepts NAMUR sensors or dry contacts and provides four relay contact outputs in a single 20 mm wide K-System module.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KFD2-SRA-Ex4 need?\u003c\/h3\u003e\u003cp\u003e19 … 30 V DC (Power Rail or terminals 14+, 15-).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KFD2-SRA-Ex4?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/190176_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KFD2-SRA-Ex4 datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/35550\" target=\"_blank\" rel=\"noopener\"\u003eKFD2-SRA-Ex4 on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sr2-ex2-w-isolated-barrier\"\u003ePepperl+Fuchs KFD2-SR2-Ex2.W – Isolated Barrier Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kcd2-sr-ex2-isolated-barrier\"\u003ePepperl+Fuchs KCD2-SR-Ex2 – Isolated Barrier Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFD2-SRA-Ex4. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161092288837,"sku":"KFD2-SRA-Ex4","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kfd2-sra-ex4-4-channel-switch-amplifier.jpg?v=1794323932"},{"product_id":"pepperl-fuchs-kfa6-sr2-ex2-w-switch-amplifier-230v-ac","title":"Pepperl+Fuchs KFA6-SR2-Ex2.W – Switch Amplifier (230 V AC)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Pepperl+Fuchs KFA6-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier powered from a 230 V AC supply. It transfers digital signals from NAMUR sensors or dry contacts in hazardous areas to two relay contact outputs, with reinforced galvanic isolation between input, output and supply circuits.\u003c\/p\u003e\n\u003cp\u003eWith line fault detection, a reversible mode of operation and suitability for applications up to SIL 2 to IEC\/EN 61508 \/ IEC\/EN 61511, it suits mains-powered control panels that need to interface Ex-area switching devices without a separate 24 V DC supply.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Pepperl+Fuchs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e KFA6-SR2-Ex2.W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Switch Amplifier (230 V AC)\u003c\/li\u003e\n\u003cli\u003e2-channel isolated barrier\u003c\/li\u003e\n\u003cli\u003e230 V AC supply (207 … 253 V AC, 45 … 65 Hz)\u003c\/li\u003e\n\u003cli\u003eInputs for NAMUR sensors or dry contacts\u003c\/li\u003e\n\u003cli\u003e2 relay contact outputs\u003c\/li\u003e\n\u003cli\u003eLine fault detection (LFD)\u003c\/li\u003e\n\u003cli\u003eReversible mode of operation\u003c\/li\u003e\n\u003cli\u003eUp to SIL 2 to IEC\/EN 61508 \/ IEC\/EN 61511\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable style=\"width:100%;border-collapse:collapse;margin:0 0 1rem\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eManufacturer\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePepperl+Fuchs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePart number\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eKFA6-SR2-Ex2.W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eProduct type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2-channel isolated barrier \/ switch amplifier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSignal type\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eDigital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eRated supply voltage\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e207 … 253 V AC, 45 … 65 Hz (terminals 14, 15)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003ePower consumption\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003emax. 1.3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eInputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eNAMUR to EN 60947-5-6 or dry contact; approx. 8 V DC \/ 8 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eLine fault detection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eBreakage I ≤ 0.1 mA, short circuit I \u0026gt; 6 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eOutputs\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e2 × relay (terminals 7, 8, 9 and 10, 11, 12)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eContact loading\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e253 V AC \/ 2 A \/ cos φ \u0026gt; 0.7; 126.5 V AC \/ 4 A; 40 V DC \/ 2 A resistive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eSwitching frequency\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e≤ 10 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eFunctional safety\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eSIL 2 (IEC\/EN 61508 \/ IEC\/EN 61511)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eAmbient temperature\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e-20 … 60 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDegree of protection\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eDimensions\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e20 x 119 x 115 mm (W x H x D), housing type B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMass\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eapprox. 150 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eMounting\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003e35 mm DIN mounting rail (EN 60715)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eATEX\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003ePTB 00 ATEX 2081 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"border:1px solid rgba(0,0,0,.12);text-align:left;width:38%;padding:.6rem .9rem;vertical-align:top\"\u003eIECEx\u003c\/th\u003e\n\u003ctd style=\"border:1px solid rgba(0,0,0,.12);padding:.6rem .9rem;vertical-align:top\"\u003eIECEx PTB 11.0031\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eSpecifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e230 V AC powered control panels\u003c\/li\u003e\n\u003cli\u003eLimit and level switch signals from Ex zones\u003c\/li\u003e\n\u003cli\u003eValve position feedback\u003c\/li\u003e\n\u003cli\u003eSIL 2 safety loops\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and Compatibility\u003c\/h2\u003e\u003cp\u003eDIN rail mounting with 230 V AC on terminals 14\/15. Field devices connect to terminals 1–6, relay outputs to terminals 7–12. Follow the certificate and instruction manual for intrinsically safe loop design.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the Pepperl+Fuchs KFA6-SR2-Ex2.W?\u003c\/h3\u003e\u003cp\u003eThe Pepperl+Fuchs KFA6-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier powered from a 230 V AC supply. It transfers digital signals from NAMUR sensors or dry contacts in hazardous areas to two relay contact outputs, with reinforced galvanic isolation between input, output and supply circuits.\u003c\/p\u003e\n\u003ch3\u003eWhat supply does the KFA6-SR2-Ex2.W need?\u003c\/h3\u003e\u003cp\u003e207 … 253 V AC, 45 … 65 Hz (terminals 14, 15).\u003c\/p\u003e\n\u003ch3\u003eHow do I get a price for the KFA6-SR2-Ex2.W?\u003c\/h3\u003e\u003cp\u003eThis product is sold on a price on availability basis. Use the \u003ca href=\"#poa-enquiry\"\u003eenquiry form\u003c\/a\u003e on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.\u003c\/p\u003e\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/files.pepperl-fuchs.com\/webcat\/navi\/productInfo\/pds\/103373_eng.pdf\" target=\"_blank\" rel=\"noopener\"\u003ePepperl+Fuchs KFA6-SR2-Ex2.W datasheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.pepperl-fuchs.com\/en\/products-gp25581\/3138\" target=\"_blank\" rel=\"noopener\"\u003eKFA6-SR2-Ex2.W on the Pepperl+Fuchs website\u003c\/a\u003e (certificates, manuals and drawings)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfa5-sr2-ex2-w-switch-amplifier-115v-ac\"\u003ePepperl+Fuchs KFA5-SR2-Ex2.W – Switch Amplifier (115 V AC)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/pepperl-fuchs-kfd2-sr2-ex2-w-isolated-barrier\"\u003ePepperl+Fuchs KFD2-SR2-Ex2.W – Isolated Barrier Switch Amplifier\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/collections\/pepperl-fuchs\"\u003eView the full Pepperl+Fuchs range at Valves UK\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePrice and Availability\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePrice on Availability (POA)\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eContact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFA6-SR2-Ex2.W. Please include your required quantity and any relevant application details when submitting your enquiry.\u003c\/p\u003e","brand":"Pepperl+Fuchs","offers":[{"title":"Default Title","offer_id":60161096286533,"sku":"KFA6-SR2-Ex2.W","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0956\/5542\/8421\/files\/pepperl-fuchs-kfa6-sr2-ex2-w-switch-amplifier.jpg?v=1794323938"}],"url":"https:\/\/valvesuk.com\/collections\/isolated-barriers-switch-amplifiers.oembed","provider":"Valves UK","version":"1.0","type":"link"}