Available. The Beckhoff EL3453 is a 3-phase power measurement EtherCAT Terminal designed for high-capacity generators, such as those used in the wind industry. It directly monitors voltages up to 690 V AC without the need for a voltage transformer. The terminal features four electrically isolated current inputs, accommodating various grounded current transformer configurations, including 2- or 3-transformer setups with star or delta connections and neutral conductor current measurement. The EL3453 performs grid analysis up to the 63rd harmonic and can aggregate readings into a power quality factor for simplified diagnostics. All measured data, including harmonic content, is accessible via process data. The "ExtendedRange" feature allows utilization of the full technical measuring range, extending to 130% of the specified nominal range. Additionally, the terminal can transmit the times of the last voltage and current zero crossings to the controller via XFC technology, facilitating application-specific switching operations.