The term “Litz wire” is derived from the German word “litzendraht” meaning woven wire. It is contructed of individually insulated magnet wires either twisted or braided into a uniform pattern.
Litz wire sizes are often expressed in abbreviated format as follows:
N / XX, where N = the number of strands and XX = the AWG (American Wire Gauge) size of each strand. For example a typical size of litz wire might be expressed as:
“20/30” or 20 strands of 30 AWG. After the size follows the insulation and serving/jacketing options as will be described below.