{"product_id":"beckhoff-kl3403-power-measurement-terminal-500v-ships-overnight","title":"KL3403 | Beckhoff 3-Channel Power Measurement Bus Terminal 500 V AC","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-end=\"444\" data-start=\"90\"\u003eThe Beckhoff KL3403 is a 3-channel analog input Bus Terminal designed for precise 3-phase power and energy measurement. It measures voltage, current, power, and frequency values with 16-bit resolution, supporting up to 500 V AC and 1 A inputs for accurate monitoring and energy management in automation systems.\u003c\/p\u003e\n\u003ch3 data-end=\"534\" data-start=\"502\"\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003cp class=\"\" data-end=\"574\" data-start=\"284\"\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable style=\"width: 99.964%; height: 607.6px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eBeckhoff\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eIndustrial Automation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eKL3403\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eSubcategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003ePower Measurement Bus Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e3-phase power measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eNumber of Inputs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e3 × current, 3 × voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 39.2px;\"\u003e\u003cstrong\u003eMeasured Values\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 39.2px;\"\u003eCurrent, voltage, effective power, energy, cos φ, peak values (U, I, P), frequency\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eMeasuring Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eMax. 500 V AC 3~ (ULX-N: max. 288 V AC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eMeasuring Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eMax. 1 A via measuring transformers (x A \/ 1 A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eResolution\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e16-bit (21-bit internal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eMeasurement Procedure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eTrue RMS with 64,000 samples\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 39.2px;\"\u003e\u003cstrong\u003eMeasurement Error\/Uncertainty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 39.2px;\"\u003e0.5% (U, I full scale), 1% (calculated value)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eUpdate Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e50 ms per measured value (configurable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eElectrical Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e1500 V (K-bus\/field potential)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 39.2px;\"\u003e\u003cstrong\u003eCurrent Consumption (K-bus)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 39.2px;\"\u003eTyp. 115 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 39.2px;\"\u003e\u003cstrong\u003eCurrent Consumption (Power Contacts)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 39.2px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 39.2px;\"\u003e\u003cstrong\u003eBit Width in Process Image\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 39.2px;\"\u003eInput\/output: 3 × 16-bit data, 3 × 8-bit control\/status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.2px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 39.2px;\"\u003e\u003cstrong\u003eSpecial Features\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 39.2px;\"\u003eEnergy meter, power measurement, true RMS, configurable update rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eIP20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e-25°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003eUp to 95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e12 mm × 100 mm × 68 mm (typical KL housing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd style=\"width: 31.6417%; height: 19.6px;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.2251%; height: 19.6px;\"\u003e75 g (0.17 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003eKL3403\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe KL3403 belongs to Beckhoff’s KL series of Bus Terminals and serves as a multifunctional power measurement module for three-phase networks. It connects directly to voltage lines (L1, L2, L3, and N) and measures phase currents via external current transformers, providing accurate RMS values for voltage and current. The terminal calculates key power metrics including effective, apparent, and reactive power, as well as power factor (cos φ) and energy consumption per phase. Featuring 16-bit resolution and a configurable update rate of 50 ms, it ensures fast and precise energy monitoring. With 1500 V isolation between field and K-bus potentials, the KL3403 supports safe integration into industrial and energy management systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-Phase Power Measurement: Simultaneously measures three current and three voltage inputs for complete network analysis.\u003c\/li\u003e\n\u003cli\u003eTrue RMS Calculation: Utilizes a 64,000 samples\/s measurement rate for accurate RMS values of voltage and current.\u003c\/li\u003e\n\u003cli\u003eWide Measuring Range: Supports up to 500 V AC and 1 A input per phase via external current transformers.\u003c\/li\u003e\n\u003cli\u003eComprehensive Data Acquisition: Calculates active power, apparent power, energy, and power factor (cos φ).\u003c\/li\u003e\n\u003cli\u003eHigh-Resolution Accuracy: 16-bit output resolution (21-bit internal) with \u0026lt;0.5% measurement uncertainty.\u003c\/li\u003e\n\u003cli\u003eFast Response: Delivers configurable 50 ms update times for real-time energy management.\u003c\/li\u003e\n\u003cli\u003eElectrical Isolation: 1500 V isolation ensures system safety and signal integrity.\u003c\/li\u003e\n\u003cli\u003eCompact and Modular Design: Fits within Beckhoff’s KL Bus Terminal system for flexible fieldbus integration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe KL3403 delivers the reliability and precision required for industrial power measurement, energy management, and network monitoring applications in automation systems.\u003c\/p\u003e","brand":"Beckhoff","offers":[{"title":"Default Title","offer_id":50747409498410,"sku":"KL3403","price":329.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/0392\/4266\/files\/kl3403__web_preview_png.webp?v=1761546556","url":"https:\/\/iqelectro.com\/products\/beckhoff-kl3403-power-measurement-terminal-500v-ships-overnight","provider":"IQElectro","version":"1.0","type":"link"}