{"product_id":"siemens-6es7331-7rd00-0ab0-sm331-analog-input-exi","title":"Siemens 6ES7331-7RD00-0AB0 SIMATIC S7 SM 331 Analog Input 4x 0\/4-20mA Ex(i) 16-bit PLC I\/O Module","description":"\u003cp\u003eThe Siemens 6ES7331-7RD00-0AB0 is a SIMATIC S7 SM 331 analog input module with 4 isolated current inputs at 0\/4-20 mA, resolution up to 16 bit, and PTB-tested Ex(i) protection for signals from hazardous areas. It draws 250 mA from the 24 V DC load supply, dissipates 3 W, and reads diagnostics for overrange, wire-break, and short-circuit conditions on each channel.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrder Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6ES7331-7RD00-0AB0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSiemens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSIMATIC S7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSM 331 Analog Input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAnalog Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0-20 mA \/ 4-20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResolution, max.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntegration Time (parameterizable)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2.5-100 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBasic Error Limit (25°C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperational Error Limit (full temp range)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e±0.45%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLoad Voltage L+ (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent Consumption (L+, max.)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Loss, typ.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEx(i) Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes, PTB tested (Ex-96.D.2092X)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eATEX Marking\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eII 3 G (2) GD Ex nA [ib Gb] [ib IIIC Db] IIC T4 Gc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFM Marking\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClass I, Division 2, Group A, B, C, D T4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFront Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWidth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e125 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDepth\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eapprox. 290 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eSelection Notes\u003c\/h2\u003e\u003cp\u003eThe Ex(i) suffix and PTB test number mark this as the intrinsically-safe variant of the SM 331 family, so pick it when field transmitters sit inside an ATEX Zone 2\/22 or FM Class I Division 2 area rather than in the safe zone — a standard SM 331 without Ex(i) cannot be wired into that loop. Four fully isolated 0\/4-20 mA channels with 16-bit resolution and 0.1% basic error at 25°C give enough accuracy for process measurements like pressure or flow transmitters that need tight loop calibration.\u003c\/p\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cp\u003eReads 0\/4-20 mA process transmitters located in hazardous areas — such as pressure, level, or flow sensors in petrochemical, marine, or process plants — where the Ex(i) barrier lets the field wiring run into a Zone 2\/22 or Class I Division 2 classified area.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":53960576958747,"sku":"6ES7331-7RD00-0AB0","price":1332.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/7722\/4475\/files\/siemens-6es7331-7rd00-0ab0-sm331-analog-input-exi.png?v=1789714708","url":"https:\/\/stoklink.com\/products\/siemens-6es7331-7rd00-0ab0-sm331-analog-input-exi","provider":"Stoklink","version":"1.0","type":"link"}