Comprised of scalable, 3- and 4-wire active harmonic filter modules/systems, Power Balance & Kxxx Series meet IEEE-519 and Mil-Std-1399 with respective values of 5% TDD and <3% THDi. Communication connections include Ethernet TCP/IP, Ethercat, and ModBus, and functions include resonance frequency detection and automatic protection; trace waveform display/capture (filter current, load current, grid current, and voltage); and NEMA-rated, air and liquid cooling options.