{"product_id":"beckhoff-el3773-3-channel-analog-input-ethercat-terminal","title":"BECKHOFF EL3773 3-Channel Analog Input EtherCAT Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe BECKHOFF EL3773 is a high-performance, multi-function 3-channel analog input EtherCAT Terminal designed for 3-phase power monitoring of both alternating and direct voltage systems. It is engineered to capture instantaneous voltage and current values simultaneously using an oversampling function, making it highly suitable for grid analysis, transient monitoring, and detailed power quality measurements in demanding industrial environments.\u003c\/p\u003e\n\n\u003cp\u003eOperating with a high conversion speed, the terminal captures three voltage channels and three current channels with high temporal resolution. The device acts as a specialized measuring interface within the modular Beckhoff I\/O system, transmitting digitized raw values directly to the controller via the high-speed EtherCAT protocol. This setup allows complex power calculations and analysis algorithms to be executed centrally in software, such as TwinCAT, reducing processing overhead on the physical hardware.\u003c\/p\u003e\n\n\u003cp\u003eTo ensure precise synchronization across distributed networks, the BECKHOFF EL3773 supports Distributed Clocks (DC). This synchronization enables the correlation of electrical measurements from multiple terminals across the system with nanosecond precision, which is critical for transient recording and identifying phase offsets in complex power distribution grids.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSimultaneous acquisition of 3 voltage and 3 current channels for comprehensive 3-phase power monitoring\u003c\/li\u003e\n  \u003cli\u003eOversampling technology with a selectable factor (n = 1 to 100) for detailed reconstruction of signal curves\u003c\/li\u003e\n  \u003cli\u003eHigh-speed conversion with a minimum conversion time of 100 microseconds for all channels simultaneously\u003c\/li\u003e\n  \u003cli\u003e16-bit resolution (including sign) ensuring exceptional measurement accuracy\u003c\/li\u003e\n  \u003cli\u003eDistributed Clocks (DC) compatibility for high-precision time synchronization across the EtherCAT network\u003c\/li\u003e\n  \u003cli\u003eSupport for both alternating current (AC) and direct current (DC) measurement scenarios\u003c\/li\u003e\n  \u003cli\u003eHigh electrical isolation rating of 2500 V to safeguard system electronics from field-side voltage transients\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e3-phase power quality monitoring and grid stability analysis\u003c\/li\u003e\n  \u003cli\u003eDynamic monitoring of AC and DC drive systems and load distributions\u003c\/li\u003e\n  \u003cli\u003eHigh-frequency transient recording and waveform reconstruction\u003c\/li\u003e\n  \u003cli\u003eIndustrial energy management and consumption profiling\u003c\/li\u003e\n  \u003cli\u003eIntegration with measuring transformers in sub-station and distribution boards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\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\u003eModel\u003c\/td\u003e\n      \u003ctd\u003eEL3773\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT Terminal, 3-Channel Analog Input\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n      \u003ctd\u003e3 x Voltage, 3 x Current (Simultaneous acquisition)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSignal Type\u003c\/td\u003e\n      \u003ctd\u003eSingle-ended\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eResolution\u003c\/td\u003e\n      \u003ctd\u003e16 bit (including sign)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOversampling Factor\u003c\/td\u003e\n      \u003ctd\u003en = 1 to 100 selectable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003eMin. 100 microseconds (all channels simultaneously)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Voltage\u003c\/td\u003e\n      \u003ctd\u003eMax. 500 V AC 3-phase (ULX-N: max. 288 V AC), max. 410 V DC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Current\u003c\/td\u003e\n      \u003ctd\u003eMax. 1 A (AC) \/ 1.5 A (DC), compatible with external measuring transformers\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\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDistributed Clocks (DC)\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eElectrical Isolation\u003c\/td\u003e\n      \u003ctd\u003e2500 V\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption (E-bus)\u003c\/td\u003e\n      \u003ctd\u003e200 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Technology\u003c\/td\u003e\n      \u003ctd\u003eCage clamp spring terminals\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003cli\u003eConductor Cross-section (Solid)\u003c\/li\u003e\n    \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConductor 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\u003eConductor Cross-section (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    \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\u003e0 degC to +55 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature\u003c\/td\u003e\n      \u003ctd\u003e-25 degC to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative Humidity\u003c\/td\u003e\n      \u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Class\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\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 that the entire system power supply is completely de-energized before mounting, wiring, or removing the terminal.\u003c\/li\u003e\n  \u003cli\u003eMount the terminal on a standard 35 mm DIN rail (conforming to EN 60715). Slide the terminal along the rail until the latch engages securely.\u003c\/li\u003e\n  \u003cli\u003eEnsure the adjacent EtherCAT Terminals are aligned correctly to establish reliable E-bus contacts.\u003c\/li\u003e\n  \u003cli\u003eConnect the voltage and current lines according to your system architecture, utilizing shielded cables for signal wiring to minimize electromagnetic interference.\u003c\/li\u003e\n  \u003cli\u003eVerify that the stripping length of the conductors is between 8 and 9 mm before inserting them into the spring-clamp contact points.\u003c\/li\u003e\n  \u003cli\u003eConfigure the terminal within your TwinCAT engineering system, applying the appropriate oversampling factor and hardware filter parameters based on your application needs.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106477859179,"sku":"EL3773","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/el3773-xo2nt44mlcp.png?v=1776244505","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-el3773-3-channel-analog-input-ethercat-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}