{"product_id":"beckhoff-el3403-0333-ethercat-terminal","title":"BECKHOFF EL3403-0333 EtherCAT Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF EL3403-0333\u003c\/strong\u003e is a 3-channel analog input terminal designed specifically for extensive power measurement within an EtherCAT industrial automation network. This high-precision terminal directly acquires three current channels and three voltage channels to perform comprehensive 3-phase power measurements for alternating voltages. It is engineered to monitor electrical networks continuously, providing critical operational data such as active power, reactive power, apparent power, energy consumption, power factor (cos φ), frequency, and true RMS values for voltage and current.\u003c\/p\u003e\n\u003cp\u003eIntegrated within the modular EtherCAT I\/O system, the EL3403-0333 communicates process data directly to the controller via the E-bus, ensuring deterministic performance and synchronized data acquisition. The device processes input signals mains-synchronously with a high 16-bit resolution, making it well-suited for energy monitoring, machine diagnostics, and power quality assessment in industrial environments. Its compact housing features pluggable wiring capability and clear diagnostic LEDs for rapid status identification during installation and maintenance.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3-channel analog input terminal for simultaneous 3-phase voltage and current acquisition\u003c\/li\u003e\n  \u003cli\u003eSupports measuring voltages up to 500 V AC 3~ (ULX-N up to 288 V AC) and measuring currents up to 1 A AC via external transformers\u003c\/li\u003e\n  \u003cli\u003eCalculates true RMS values, active power, reactive power, apparent power, energy, frequency, and cos φ\u003c\/li\u003e\n  \u003cli\u003eMains-synchronous conversion and update time for accurate grid monitoring\u003c\/li\u003e\n  \u003cli\u003eProcess image bit width of 62 bytes for PM inputs and 3 bytes for PM outputs\u003c\/li\u003e\n  \u003cli\u003ePowered via the internal E-bus (typ. 120 mA) with integrated electrical isolation up to 1500 V\u003c\/li\u003e\n  \u003cli\u003eOptional single-phase operation mode for versatile application setups\u003c\/li\u003e\n  \u003cli\u003eCompact terminal housing with pluggable wiring design and front-facing signal LEDs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial energy data acquisition and sub-metering systems\u003c\/li\u003e\n  \u003cli\u003e3-phase power grid monitoring and power quality analysis\u003c\/li\u003e\n  \u003cli\u003eMachine health monitoring and predictive electrical load tracking\u003c\/li\u003e\n  \u003cli\u003eDrive system efficiency and consumption profiling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eManufacturer\u003c\/td\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eExact Model\u003c\/td\u003e\n      \u003ctd\u003eEL3403-0333\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT Terminal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDesign form\u003c\/td\u003e\n      \u003ctd\u003eCompact terminal housing with signal LEDs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eSignal and I\/O\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of inputs\u003c\/td\u003e\n      \u003ctd\u003e3 x current, 3 x voltage\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTechnology\u003c\/td\u003e\n      \u003ctd\u003e3-phase power measurement for alternating voltages\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring voltage\u003c\/td\u003e\n      \u003ctd\u003eMax. 500 V AC 3~ (ULX-N: max. 288 V AC)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring current\u003c\/td\u003e\n      \u003ctd\u003eMax. 1 A (AC), via measuring transformers x A\/1 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasured values\u003c\/td\u003e\n      \u003ctd\u003eCurrent (I1, I2, I3), voltage, effective power, reactive power, apparent power, energy, cos φ, frequency\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring procedure\u003c\/td\u003e\n      \u003ctd\u003eTrue RMS\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eResolution\u003c\/td\u003e\n      \u003ctd\u003e1 µA, 0.1 mV, 10 mW\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring error\u003c\/td\u003e\n      \u003ctd\u003e0.5 % relative to full scale value (U\/I), 1 % calculated value\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003ePerformance and Communication\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion time\u003c\/td\u003e\n      \u003ctd\u003eMains-synchronous\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eUpdate time\u003c\/td\u003e\n      \u003ctd\u003eNet-synchronous\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBit width in process image\u003c\/td\u003e\n      \u003ctd\u003e62 byte PM input, 3 byte PM output\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eElectrical isolation\u003c\/td\u003e\n      \u003ctd\u003e1500 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eElectrical Supply\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent consumption E-bus\u003c\/td\u003e\n      \u003ctd\u003eTyp. 120 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent load power contacts\u003c\/td\u003e\n      \u003ctd\u003eImax: 10 A\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eConnection Technology\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection cross-section solid (s)\u003c\/td\u003e\n      \u003ctd\u003e0.08…2.5 mm² (AWG 28…14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection cross-section stranded (st)\u003c\/td\u003e\n      \u003ctd\u003e0.08…2.5 mm² (AWG 28…14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection cross-section with ferrule (f)\u003c\/td\u003e\n      \u003ctd\u003e0.14…1.5 mm² (AWG 26…16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStripping length\u003c\/td\u003e\n      \u003ctd\u003e8…9 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWiring method\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eMechanical and Environmental\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n      \u003ctd\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003eApprox. 75 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating temperature\u003c\/td\u003e\n      \u003ctd\u003e-25…+60 °C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage temperature\u003c\/td\u003e\n      \u003ctd\u003e-40…+85 °C\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative humidity\u003c\/td\u003e\n      \u003ctd\u003e95 %, no condensation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection rating\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInstallation position\u003c\/td\u003e\n      \u003ctd\u003eVariable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eVibration\/shock resistance\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 60068-2-6 \/ EN 60068-2-27\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eEMC immunity\/emission\u003c\/td\u003e\n      \u003ctd\u003eConforms to EN 61000-6-2 \/ EN 61000-6-4\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eCompliance and Approvals\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApprovals \/ markings\u003c\/td\u003e\n      \u003ctd\u003eCE, UL\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the entire control cabinet and associated power circuits are completely de-energized and locked out before performing any mechanical or electrical work.\u003c\/li\u003e\n  \u003cli\u003eVerify that the terminal model matches system engineering documents. Inspect the housing and connection points for any transit damage.\u003c\/li\u003e\n  \u003cli\u003eMount the terminal onto a standard 35 mm DIN rail (conforming to EN 60715) alongside existing EtherCAT terminals, utilizing the double slot and key connection for side-by-side alignment.\u003c\/li\u003e\n  \u003cli\u003eConnect the voltage inputs and external current transformers to the appropriate terminal points, ensuring conductor cross-sections and stripping lengths comply with technical requirements.\u003c\/li\u003e\n  \u003cli\u003eConnect the EtherCAT communication cables to the appropriate ports and verify secure engagement of the E-bus connectors.\u003c\/li\u003e\n  \u003cli\u003eCheck all potential groups, power contact supplies, and field-side wiring thoroughly before restoring power to the system.\u003c\/li\u003e\n  \u003cli\u003ePower on the control system and verify operational status using the integrated diagnostic LEDs and the TwinCAT engineering environment.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106516394347,"sku":"EL3403-0333","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3403-0333-1o2q2tcsuzd.png?v=1776244483","url":"https:\/\/www.plcprotech.com\/it\/products\/beckhoff-el3403-0333-ethercat-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}