{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ES7431-1KF10-0AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"6ES7431-1KF10-0AB0","canonicalUrl":"https://aoctrl.com/siemens/6ES7431-1KF10-0AB0","factsUrl":"https://aoctrl.com/api/mcp/products/6ES7431-1KF10-0AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens S7-400 analog input module, 6ES7431-1KF10-0AB0, 8-channel, 25 mm width, 210 mm depth, 290 mm height, supports RTD (Pt100, Ni100), thermocouple (K, J, T, etc.), voltage, current.","salesMarkdown":"The Siemens 6ES7431-1KF10-0AB0 is an 8-channel analog input module for the S7-400 rack. It handles RTDs (Pt100, Pt200, Pt500, Pt1000, Pt10000, Ni100, Ni1000), thermocouples (types B, E, J, K, L, N, R, S, T, U), voltage ranges (-10 V to +10 V, -5 V to +5 V, -2.5 V to +2.5 V, -1 V to +1 V, 1 V to 5 V), and current loops (0 to 20 mA, 4 mA to 20 mA). Resistance measurement spans 0 to 6000 ohms (usable up to 5000 ohms). That range covers nearly every field signal you'd find in a process plant — from Pt100 RTDs on heat exchangers to Type K thermocouples in furnaces, plus 4-20 mA transmitters for pressure or level. The module is parameterizable, meaning the input type and range are set in software, not by jumpers. The module width is 25 mm, depth 210 mm, height 290 mm. It occupies one slot in the S7-400 rack. The 210 mm depth is the standard S7-400 depth — it fits the same enclosures as other S7-400 modules. Shielded cable runs up to 200 m for most signals; thermocouples and low-voltage ranges (≤80 mV) are limited to 50 m to avoid noise pickup.","metaTitle":"Siemens 6ES7431-1KF10-0AB0 Analog Input Module, 25 mm wide","metaDescription":"Siemens 6ES7431-1KF10-0AB0 analog input module for S7-400, 25 mm width, 210 mm depth, supports RTD, TC, voltage, current. Mature lifecycle; sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Analog Input Modules"],"specifications":{"Depth":"210 mm","Width":"25 mm","Height":"290 mm","Ni 100":"Yes","Pt 100":"Yes","Pt 200":"Yes","Pt 500":"Yes","Type B":"Yes","Type E":"Yes","Type J":"Yes","Type K":"Yes","Type L":"Yes","Type N":"Yes","Type R":"Yes","Type S":"Yes","Type T":"Yes","Type U":"Yes","Current":"Yes","Ni 1000":"Yes","Pt 1000":"Yes","Voltage":"Yes","Pt 10000":"Yes","0 to 20 mA":"Yes","1 V to 5 V":"Yes","Resistance":"Yes","-1 V to +1 V":"Yes","-5 V to +5 V":"Yes","0 To 48 Ohms":"Yes","Thermocouple":"Yes","0 To 150 Ohms":"Yes","0 To 300 Ohms":"Yes","0 To 600 Ohms":"Yes","4 mA to 20 mA":"Yes","-10 V to +10 V":"Yes","0 To 6000 Ohms":"Yes; Usable up to 5000 Ohm","Shielded, Max.":"200 m; 50 m with thermocouples and input ranges ≤ 80 mV","Parameterizable":"Yes","Weight, approx.":"500 g","lifecycle_stage":"mature","-2.5 V to +2.5 V":"Yes","-80 mV to +80 mV":"Yes","Power loss, typ.":"3.5 W","Rated value (DC)":"24 V; Only required for supplying 2-wire transmitters","For Thermocouples":"Type B, E, J, K, L, N, R, S, T, U","-250 mV to +250 mV":"Yes","-500 mV to +500 mV":"Yes","Between The Channels":"No","Diagnostics function":"No","Integration time (ms)":"16,7 / 20 ms","Isolation tested with":"2 120 V DC between bus and L+/M; 2 120 V DC between bus and analog section; 500 V DC between bus and local ground; 500 V DC between analog section and L+/M; 2 120 V DC between analog section and local ground; 2 120 V DC between L+/M and local ground","Resistance thermometer":"Yes","For Voltage Measurement":"Yes; possible","Number of analog inputs":"8","Input resistance (Ni 100)":"1 MΩ","Input resistance (Pt 100)":"1 MΩ","Input resistance (Pt 200)":"1 MΩ","Input resistance (Pt 500)":"1 MΩ","Input resistance (Type B)":"1 MΩ","Input resistance (Type E)":"1 MΩ","Input resistance (Type K)":"1 MΩ","Input resistance (Type L)":"1 MΩ","Input resistance (Type N)":"1 MΩ","Input resistance (Type R)":"1 MΩ","Input resistance (Type S)":"1 MΩ","Input resistance (Type T)":"1 MΩ","Input resistance (Type U)":"1 MΩ","Input resistance (type J)":"1 MΩ","Basic conversion time (ms)":"20.1 / 23.5 ms","For Resistance Thermometer":"Pt100, Pt200, Pt500, Pt1000, Ni100, Ni1000","For resistance measurement":"4","Input resistance (Ni 1000)":"1 MΩ","Reverse polarity protection":"Yes","Input resistance (0 to 20 mA)":"50 Ω","Input resistance (1 V to 5 V)":"1 MΩ","For voltage/current measurement":"8","Input resistance (-1 V to +1 V)":"1 MΩ","Input resistance (-5 V to +5 V)":"1 MΩ","Input resistance (0 to 48 ohms)":"1 MΩ","from backplane bus 5 V DC, max.":"600 mA","Input resistance (0 to 150 ohms)":"1 MΩ","Input resistance (0 to 300 ohms)":"1 MΩ","Input resistance (0 to 600 ohms)":"1 MΩ","Input resistance (4 mA to 20 mA)":"50 Ω","Input resistance (-10 V to +10 V)":"1 MΩ","Input resistance (0 to 6000 ohms)":"1 MΩ","Integration time, parameterizable":"Yes","Internal Temperature Compensation":"No","Potential separation analog inputs":"Yes; internal/external","Dynamic Reference Temperature Value":"Yes","Input resistance (-2.5 V to +2.5 V)":"1 MΩ","Input resistance (-80 mV to +80 mV)":"1 MΩ","Input resistance (-250 mV to +250 mV)":"1 MΩ","Input resistance (-500 mV to +500 mV)":"1 MΩ","Between The Channels And Backplane Bus":"Yes","Current, relative to input range, (+/-)":"0.15 %; ±20 mA, 0 to 20 mA, 4 to 20 mA","Voltage, relative to input range, (+/-)":"0.15 %; ±0.15 % (±250 mV, ±500 mV, ±1 V, ±2.5 V, ±5 V, 1 to 5 V, ±10 V); ±0.17% (±80 mV)","Between the channels and load voltage L+":"Yes","from load voltage L+ (without load), max.":"200 mA; for 8 connected, fully controlled 2-wire transmitters","Resistance, relative to input range, (+/-)":"0.15 %; ±0.15 % at 0 to 48 ohms (4-conductor measurement), 0 to 150 ohms (4-conductor measurement), 0 to 300 ohms (4-conductor measurement), 0 to 600 ohms (4-conductor measurement), 0 to 5000 ohms (4-conductor measurement, in range of 6000 ohms); ±0.3 % at 0 to 300 ohms (3-conductor measurement), 0 to 600 ohms (3-conductor measurement), 0 to 5000 ohms (3-conductor measurement, in range of 6000 ohms)","For Current Measurement As 2-Wire Transducer":"Yes","For Current Measurement As 4-Wire Transducer":"Yes","Thermocouple, relative to input range, (+/-)":"TC Type B (±8.2 K), TC Type R (±5.2 K), TC Type S (±5.9 K), TC Type T (±1.2 K), TC Type E (±1.8 K), TC Type J (±2.3 K), TC Type K (±3.4 K), TC Type U (±1.8 K), TC Type L (±2.3 K), TC Type N (±2.9 K)","external temperature compensation with Pt100":"Yes","Temperature error (relative to input range), (+/-)":"0.004 %/K","For Resistance Measurement With Two-Wire Connection":"Yes; Line resistances are also measured","For Resistance Measurement With Four-Wire Connection":"Yes","Resolution with overrange (bit including sign), max.":"14 bit; with activated filtering: 16 bit","For Resistance Measurement With Three-Wire Connection":"Yes","Resistance thermometer, relative to input range, (+/-)":"0.3 %","Basic execution time of the module (all channels released)":"161 ms; 161 / 188 ms","External Temperature Compensation With Compensations Socket":"Yes","Constant measurement current for resistance-type transmitter, typ.":"1.67 mA","Interference voltage suppression for interference frequency f1 in Hz":"50 / 60 Hz","Permissible Input Current For Current Input (Destruction Limit), Max.":"40 mA; Permanent","Permissible Input Voltage For Voltage Input (Destruction Limit), Max.":"18 V; 18 V continuous, 75 V for 1 ms (mark to space ratio 1:20)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$867.50 – $2,164.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c420ef928328f5f2ec95d8354ace0206.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=255268&mlfb=6ES7431-1KF10-0AB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6ES7431-1KF10-0AB0/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions?","answer":"Width 25 mm, depth 210 mm, height 290 mm. It fits one slot in an S7-400 rack."},{"question":"What signal types does it support?","answer":"It supports RTDs (Pt100, Pt200, Pt500, Pt1000, Pt10000, Ni100, Ni1000), thermocouples (B, E, J, K, L, N, R, S, T, U), voltage ranges (-10 V to +10 V, -5 V to +5 V, -2.5 V to +2.5 V, -1 V to +1 V, 1 V to 5 V), current loops (0 to 20 mA, 4 mA to 20 mA), and resistance (0 to 6000 ohms)."},{"question":"What is the maximum cable length?","answer":"200 m for most signals; 50 m for thermocouples and input ranges ≤80 mV."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ES7431-1KF10-0AB0","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ES7431-1KF10-0AB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}