{"product_id":"beckhoff-el3443-0013-ethercat-terminal-3-channel-power-measurement-module","title":"Beckhoff EL3443-0013 EtherCAT Terminal 3-Channel Power Measurement Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eDesigned for comprehensive and precise electrical network analysis, the \u003cstrong\u003eBeckhoff EL3443-0013\u003c\/strong\u003e serves as a high-performance 3-channel power measurement EtherCAT terminal. This module is engineered to evaluate non-sinusoidal AC and DC distribution systems directly, accommodating voltages up to \u003cstrong\u003e480 V AC\u003c\/strong\u003e. Utilizing \u003cstrong\u003e24-bit resolution\u003c\/strong\u003e analog inputs, it processes signals from low-voltage current transformers with a nominal output of \u003cstrong\u003e333 mV\u003c\/strong\u003e. This makes it an ideal instrument for integration into space-constrained control cabinets where detailed monitoring of effective, reactive, and apparent power, along with harmonic analysis up to the 40th harmonic, is required for preventative maintenance and active energy management.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3-Phase Power Measurement:\u003c\/strong\u003e Features three independent current and three independent voltage measurement channels for complete grid diagnostics.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Voltage Sensor Interface:\u003c\/strong\u003e Designed for safe and efficient interfacing with external 333 mV voltage-output current transformers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdvanced Grid Analysis:\u003c\/strong\u003e Measures current, voltage, active\/reactive\/apparent power, energy values, cos phi, frequency, THD, and harmonics up to the 40th order.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMains Synchronization:\u003c\/strong\u003e Provides net-synchronous updates with an interval of one mains period (20 ms at 50 Hz).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Standard 12 mm EtherCAT terminal housing simplifies integration onto standard 35 mm DIN rails.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZero Voltage Crossing Detection:\u003c\/strong\u003e Enables high-accuracy synchronization and phase order detection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; margin-bottom: 1.5rem; padding-left: 1.5rem;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustrial Energy Monitoring:\u003c\/strong\u003e Deployment in manufacturing facilities to trace, log, and optimize machinery power consumption.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Quality Auditing:\u003c\/strong\u003e Localized harmonic distortion and voltage anomaly analysis within busy automation networks.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSub-Metering Infrastructures:\u003c\/strong\u003e Integration into distributed control systems to monitor individual assembly lines or plant zones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0; text-align: left;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eValue \/ Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eBeckhoff Automation GmbH \u0026amp; Co. KG\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eEL3443-0013\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eNumber of Inputs\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3 x current, 3 x voltage\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMeasuring Technology\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e3-phase power measurement\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMax. Measuring Voltage\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e480 V AC 3~ (ULX-N: max. 277 V AC\/240 V DC)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMeasuring Current Input\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e333 mV (AC\/DC) via external measurement transformers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e24 bit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eMeasuring Error\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.3% relative to full-scale value (U\/I), 0.6% calculated value\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eElectrical Isolation\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e2500 V\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eE-bus Current Consumption\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eTypical 120 mA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eUpdate Interval\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eOne mains period (20 ms at 50 Hz)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eOperating Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0 to +55 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eStorage Temperature\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e-25 to +85 degC\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003ePermissible Relative Humidity\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e95%, non-condensing\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eHousing Material\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003ePolycarbonate\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eConnection Technology\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCAGE CLAMP spring actuation\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eConductor Cross-Section\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eSolid\/Stranded: 0.08 to 2.5 mm2 (AWG 28...14)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eDimensions (W x H x D)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eGermany\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003e0.15 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #e2e8f0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0; text-align: left;\"\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eTerminal Connection\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eSignal Assignment\u003c\/th\u003e\n        \u003cth style=\"padding: 10px; font-weight: bold; color: #1a365d;\"\u003eDescription\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eL1 (1)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eVoltage Phase 1\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eVoltage input channel for phase 1 (L1)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eL2 (2)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eVoltage Phase 2\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eVoltage input channel for phase 2 (L2)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eL3 (3)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eVoltage Phase 3\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eVoltage input channel for phase 3 (L3)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eN (5)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eNeutral Conductor\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eNeutral connection for reference voltage\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eI1+ \/ I1- (9, 10)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCurrent Channel 1 (333 mV)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDifferential low-voltage input for phase 1 current transformer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eI2+ \/ I2- (11, 12)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCurrent Channel 2 (333 mV)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDifferential low-voltage input for phase 2 current transformer\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n        \u003ctd style=\"padding: 10px; font-weight: bold;\"\u003eI3+ \/ I3- (13, 14)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eCurrent Channel 3 (333 mV)\u003c\/td\u003e\n        \u003ctd style=\"padding: 10px;\"\u003eDifferential low-voltage input for phase 3 current transformer\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\n\u003ch3\u003eAlternative Models \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eIt is critical to distinguish the \u003cstrong\u003eEL3443-0013\u003c\/strong\u003e from the standard \u003cstrong\u003eEL3443-0000\u003c\/strong\u003e. The standard model is configured for direct current measurements of up to 1 A or 5 A AC\/DC. In contrast, the EL3443-0013 relies on low-power, voltage-output external sensors (333 mV). Interchanging these terminal types without matching the corresponding field current transformers will cause measurement saturation or catastrophic thermal failure of the inputs.\u003c\/p\u003e\n\n\u003ch3\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen monitoring networks with significant variable frequency drive (VFD) loading, thermal load within the terminal housing can escalate due to harmonic current peaks. Ensure appropriate lateral space or active heat dissipation within the enclosure if the continuous phase-to-phase voltage remains consistently above 440 V AC. Never connect standard, current-output (x A \/ 1 A or x A \/ 5 A) current transformers directly to this module, as the low-voltage inputs cannot clamp the inductive surge of high-current secondary loops.\u003c\/p\u003e\n\n\u003ch3\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo ensure high-fidelity measurements, always implement shielded twisted pair (STP) wiring for the 333 mV transformer signal lines. The shielding should terminate directly to the functional ground (FE) of the DIN rail closest to the point of entry. In \u003cstrong\u003eTwinCAT 3\u003c\/strong\u003e, configuration offsets must be applied via the CoE (CanOverEthernet) online parameterization menu to correlate the 333 mV signal range directly to the primary scaling values of the field sensors.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Prior to mounting, wiring, or maintenance on the terminal, de-energize the entire distribution network. Verify that the bus system and voltage inputs are fully isolated. Residual charges must be bled from the primary circuit to avoid fatal electric shock or damage to the internal analog converters.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eSnap the terminal onto the grounded 35 mm DIN rail (conforming to EN 60715) using the integrated locking mechanism.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect the physical E-Bus logic path by sliding adjacent terminals together using the dual slot and key system.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003ePerform tool-actuated CAGE CLAMP spring wiring. Strip wire insulation to 8-9 mm before inserting conductors into terminal ports.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; gap: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; width: 28px; height: 28px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eVerify signal routing: establish phase voltage inputs on connections 1, 2, and 3, and terminate current transformer inputs on connections 9 through 14.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106488476011,"sku":"EL3443-0013","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3443-0013-m0wcsplqa2x.png?v=1776244489","url":"https:\/\/www.plcprotech.com\/fa\/products\/beckhoff-el3443-0013-ethercat-terminal-3-channel-power-measurement-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}