The R&S®ENV432 from Rohde & Schwarz is a Line Impedance Stabilization Network with AC Voltage 0 to 415 V, Frequency 9 kHz to 30 MHz, Inductance 50 uH, Isolation 0 to 40 dB, Maximum Continuous Current 16 to 50 A. More details for R&S®ENV432 can be seen below.