{"product_id":"beckhoff-el3351-ethercat-terminal","title":"BECKHOFF EL3351 EtherCAT Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe BECKHOFF EL3351 is an EtherCAT Terminal featuring a single-channel analog input specifically designed for measuring bridge evaluation. Operating within the modular EtherCAT I\/O system, this device enables direct connection of a resistive full bridge sensor, such as a strain gauge, allowing precise acquisition of load, force, or weight measurements in industrial automation environments.\u003c\/p\u003e\n\u003cp\u003eSignal processing is handled with high resolution, and the integrated 5 V DC bridge supply powers the connected sensor directly through the terminal. The compact housing mounts easily onto a standard 35 mm DIN rail and communicates high-speed measurement data over the EtherCAT network with minimal latency.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1-channel analog input terminal for resistance bridges in full bridge technology\u003c\/li\u003e\n  \u003cli\u003eIntegrated 5 V DC bridge supply for strain gauge sensors\u003c\/li\u003e\n  \u003cli\u003eDifferential signal input with high internal resistance\u003c\/li\u003e\n  \u003cli\u003eParameterizable input filter limit frequency with a 50 Hz default setting\u003c\/li\u003e\n  \u003cli\u003eConfigurable conversion time supporting up to 400 samples per second\u003c\/li\u003e\n  \u003cli\u003e16-bit resolution with 32-bit process value presentation\u003c\/li\u003e\n  \u003cli\u003ePowered via the internal E-bus without requiring additional field supply terminals for logic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIndustrial weighing systems and platform scales\u003c\/li\u003e\n  \u003cli\u003eForce monitoring and load cell measurement in assembly machines\u003c\/li\u003e\n  \u003cli\u003eStrain and stress analysis on moving or static mechanical structures\u003c\/li\u003e\n  \u003cli\u003eTest benches and laboratory measurement setups requiring high-precision bridge evaluation\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\u003eEL3351\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\u003eNumber of Inputs\u003c\/td\u003e\n      \u003ctd\u003e1 (for 1 resistor bridge in full bridge technology)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTechnology\u003c\/td\u003e\n      \u003ctd\u003eResistor bridge, strain gauge\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal Type\u003c\/td\u003e\n      \u003ctd\u003eDifferential\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eElectrical Characteristics\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\u003eMeasuring Range UD\u003c\/td\u003e\n      \u003ctd\u003eMax. -20 to +20 mV\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Range UREF\u003c\/td\u003e\n      \u003ctd\u003eMax. -12 to +12 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInternal Resistance\u003c\/td\u003e\n      \u003ctd\u003e\u0026gt; 200 kΩ (UREF), \u0026gt; 1 MΩ (UD)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Supply UV\u003c\/td\u003e\n      \u003ctd\u003e5 V DC, max. 20 mA (integrated bridge supply)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Supply\u003c\/td\u003e\n      \u003ctd\u003eVia the E-bus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption E-Bus\u003c\/td\u003e\n      \u003ctd\u003eTyp. 170 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\u003ePerformance and Processing\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\u003eResolution\u003c\/td\u003e\n      \u003ctd\u003e16 bit, 32 bit presentation\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInput Filter Limit Frequency\u003c\/td\u003e\n      \u003ctd\u003e50 Hz default setting, parameterizable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003e2.5 to 800 ms, configurable, max. 400 samples\/s\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Error\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; ±0.1 % (relative to full scale value, 50 Hz filter)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSupported Nominal Sensitivity\u003c\/td\u003e\n      \u003ctd\u003eCalculated in PLC, freely selectable\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eConnection System\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 Technology\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Cross-Section Solid\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Cross-Section Stranded\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Cross-Section with Ferrule\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStripping Length\u003c\/td\u003e\n      \u003ctd\u003e8 to 9 mm\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\u003eNet Weight\u003c\/td\u003e\n      \u003ctd\u003eApprox. 60 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMounting\u003c\/td\u003e\n      \u003ctd\u003eOn 35 mm DIN rail conforming to EN 60715\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Rating\u003c\/td\u003e\n      \u003ctd\u003eIP 20\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e0 to +55 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature\u003c\/td\u003e\n      \u003ctd\u003e-25 to +85 degC\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\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\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure all system power and field supplies are switched off and locked out before performing any mechanical or electrical work.\u003c\/li\u003e\n  \u003cli\u003eInspect the BECKHOFF EL3351 terminal for any visible transport damage or bent pins.\u003c\/li\u003e\n  \u003cli\u003eMount the terminal onto a standard 35 mm DIN rail by snapping it into place using the locking mechanism. Ensure proper side-by-side alignment with adjacent EtherCAT terminals or couplers via the slot and key connection.\u003c\/li\u003e\n  \u003cli\u003eConnect the strain gauge full bridge sensor wiring to the appropriate terminal points using a suitable screwdriver for spring actuation, ensuring correct assignment of excitation and signal lines.\u003c\/li\u003e\n  \u003cli\u003eVerify that the E-bus connection engages correctly with neighboring terminals to maintain power and data continuity across the bus coupler system.\u003c\/li\u003e\n  \u003cli\u003eRestore system power and configure the terminal parameters within the TwinCAT engineering environment prior to operational use.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106486641003,"sku":"EL3351","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3351-mfh1v5fyeuy.png?v=1776244478","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el3351-ethercat-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}