Wurth WE-TPB HV Series Common Mode Power Line Chokes. The WE-TPB HV series from Wurth Elektronik offers a wide range of 3 phase common mode power line chokes. The series has a rated current from 2.1A up to 46A and guarantees a rated voltage of 760 V ac. The range features an original design and improved insulation with a plastic housing, separator bar and base plate. Applications. Power Electronics Input filter for three-phase network Radio interference suppression in motors Frequency converters Power supplies Charging stations