The R&S®ESH3-Z6 from Rohde & Schwarz is a Line Impedance Stabilization Network with AC Voltage 250 VAC, DC Voltage 600 V, Frequency 100 KHz to 200 MHz, Inductance 5 μH, Maximum Continuous Current 100 to 500 A. More details for R&S®ESH3-Z6 can be seen below.