{"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","url":"https:\/\/valvesuk.com\/products\/pepperl-fuchs-kfa5-sr2-ex2-w-switch-amplifier-115v-ac","provider":"Valves UK","version":"1.0","type":"link"}