The EM-7825-1 from EM Antennas is a Line Impedance Stabilization Network with AC Voltage 220 to 440 V, Frequency 450 kHz to 100 MHz, Inductance 50 uH, Maximum Continuous Current 50 to 200 A, Power Line Frequency DC to 400 Hz. More details for EM-7825-1 can be seen below.