HCR is an automatic power factor controller with a microprocessor, developed for measuring even highly distorted signals; it allows for precise control of electrical quantities in the system, such as voltage, current, phase shift, harmonic distortion in current, harmonic distortion in voltage, and internal panel temperature. In addition to the normal power factor management functions, HCR protects capacitor banks in case of voltages, currents, harmonic distortions, and temperatures outside the set operating range. HCR also disconnects capacitor banks in the event of micro-interruptions in the electrical network. Microprocessor-based management enables the distribution of operations, extending the life of capacitors and contactors. Thanks to the innovative “active timing” mode, HCR ensures the setpoint is reached in a constant time, speeding up or slowing down operations depending on the distance from the setpoint. The internal software allows for setting each battery with the nominal value of the capacitors or setting specific functions such as the fixed battery, setting the temperature threshold for fan activation, managing the alarm relay operation, the CT ratio, and all parameters necessary for adaptation to the power factor correction panel in which it is installed. HCR displays the following measurements: power factor, RMS voltage, RMS current, THDI and THDV, active, reactive, apparent power, delta power to reach the setpoint, and temperature. The state, measurements, alarms, and device setup are displayed on the latest-generation LCD screen in a simple and user-friendly mode. Through the front optical port, with dedicated software for data download/upload and configurations, it is possible to read and set up the instrument without opening the electrical panel. HCR comes pre-equipped with an RS232TTL interface by default and can be integrated with an optional RS485/RS232 interface using the standard Modbus RTU protocol. Expansion modules are available for remote management of the system, which can be connected to the optional interface, such as 3G modem, Ethernet, Wifi.