I-GARD Edgewound Resistors are  designed and built to meet the most demanding mechanical and electrical requirements in the industry. They are constructed of flat stainless steel electrical alloy, wound on its edge to form a helical resistive element.  The element is then mounted on solid porcelain cores. Welded terminals at both ends of the resistor provide the means of connection and termination.  I-GARD uses stainless steel rods for mounting the resistor elements. This provides better protection against corrosion and also allows better high-temperature performance of the resistor. It also lowers the inductance of the resistor, improving its voltage surge to withstand capability.  I-GARD special porcelain cores are designed for through bolt or flat bar frame mounting.

Edgewound resistors are available in standard sizes from size 3 (9" in length), to size 10 (30" in length). The elements are available in continuous current ratings from 11 amperes to 105 amperes. For more information on ratings and corresponding I-GARD part numbers, see our Edgewound Ratings Table..