{"product_id":"kl3052-beckhoff-2-channel-loop-powered-analog-input-terminal-4-20-ma","title":"Bornier d'entrée analogique 2 canaux alimenté en boucle (4–20 mA) Beckhoff KL3052","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL3052 (KL3052)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2-channel analog input terminal\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned for the Beckhoff Bus Terminal system to process standard\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4 to 20 mA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esignals. Specifically engineered for efficiency, this module is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eloop-powered\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eterminal, meaning it provides the necessary\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e24 VDC sensor supply\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edirectly through its power contacts. This feature significantly simplifies field wiring by eliminating the need for separate power distribution blocks for your transmitters. With a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12-bit resolution\u003c\/strong\u003e, the KL3052 is an ideal solution for monitoring pressure, level, and temperature sensors in water treatment, chemical processing, and general factory automation.\u003c\/p\u003e\n\u003ch3\u003eFunctional Engineering \u0026amp; Power Logic\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eBeckhoff KL3052\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eutilizes\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esingle-ended technology\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto deliver accurate current measurements with a fast conversion time of approximately\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1 ms to 2 ms\u003c\/strong\u003e. Because the module integrates the sensor supply, it acts as the power source for the 4–20 mA current loop. The internal circuitry includes a low-impedance shunt (\u003cstrong\u003e80 Ω + 0.7 V\u003c\/strong\u003e) and is protected against surge voltages up to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e35 V\u003c\/strong\u003e. Like all Beckhoff Bus Terminals, it features\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e500 V electrical isolation\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebetween the field signals and the K-bus, ensuring that localized electrical noise or ground faults do not propagate to the central PLC or Bus Coupler.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eKL3052\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBeckhoff\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSignal Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e12-bit\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConversion Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e~1 ms to 2 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSensor Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 VDC (via power contacts)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMeasuring Error\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; ±0.3% (relative to full scale value)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInternal Resistance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e80 Ω + 0.7 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e500 V (K-bus\/signal voltage)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0 to +55 °C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e~70 g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of a \"Loop-Powered\" terminal with sensor supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn a standard current loop, you would normally need an external power supply to \"drive\" the 4–20 mA signal from the sensor. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL3052\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides this 24 VDC internally. This reduces the number of wires going to the field and reduces the density of components in your control cabinet, leading to lower installation costs and fewer points of failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the data represented in the PLC process image?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe measured 4–20 mA signal is mapped as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2 x 16-bit data\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the process image. While the resolution is 12-bit, the data is typically formatted so that 4 mA corresponds to a specific digital value (e.g., 0 or a standardized offset) and 20 mA corresponds to the maximum value, allowing for easy scaling in TwinCAT or other programming environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the KL3052 detect a wire break?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. Because the module operates on a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4–20 mA \"live zero\"\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003escale, any signal falling significantly below 4 mA (typically near 0 mA) is instantly recognizable by the PLC as a wire break or sensor failure, enhancing the functional safety of the system.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eField Engineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Contact Integrity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSince the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL3052\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edraws sensor power from the terminal's internal power contacts, ensure that the preceding terminal in the assembly (typically a Bus Coupler or a Power Feed Terminal like the KL9100) is supplied with a stable 24 VDC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eShielding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTo maintain the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e±0.3% measuring accuracy\u003c\/strong\u003e, use shielded cables for the current loops. The shield should be connected to the functional earth (FE) using Beckhoff shield clamps to mitigate the effects of high-frequency interference.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen mounting several\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL3052\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodules side-by-side, ensure the cabinet has adequate convection. While the module is efficient, the combined sensor supply current across multiple loops can generate localized heat.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eKL3052\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a \"workhorse\" for B2B industrial projects, offering a ruggedized design that conforms to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEN 60068-2-6\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor vibration and shock resistance. Its wide array of global approvals, including\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCE, UL, Ex (for hazardous areas), and GL (for marine applications)\u003c\/strong\u003e, makes it a versatile choice for international projects. By integrating the sensor power supply and providing high-speed 12-bit digitization in a 12 mm frame, Beckhoff provides a solution that maximizes panel density without compromising on technical performance or diagnostic clarity.\u003c\/p\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106502697323,"sku":"KL3052","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/KL3052-rfxitsqxsg5.png?v=1776245153","url":"https:\/\/www.plcprotech.com\/fr\/products\/kl3052-beckhoff-2-channel-loop-powered-analog-input-terminal-4-20-ma","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}