About Us

Zero Surge Inc.

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The Zero Surge Story

Zero Surge® was incorporated in March 1989 by J. Rudy Harford. As an independent consultant who designed and manufactured computer networks, Mr. Harford was given the challenge of reinventing the surge suppressor. When he examined failed surge suppressors, he found that the basis for the protection was metal oxide varistors (MOVs), inexpensive components which failed in normal service.

He began thinking about circuit design alternatives to the unpredictable and failure-prone MOV type. Using computer-aided circuit design, Mr. Harford developed and patented a series-mode surge suppression circuit which protects against worst-case surges, unlike the suppressors on the market which often fail after minor surges.

As power supply technology improved and became capable of operating over a wide voltage range, Mr. Harford developed and was issued another patent in April 2004 for Spectrum WVR®. This technology offers power line surge suppression over the entire voltage range of 85-175V (standard) and 85-265 (enhanced) with exceptional performance and worst-case surge endurance. Spectrum WVR is inherent in Zero Surge’s entire product line. In 2006, Mr. Harford developed and patented Total Surge Cancellation (TSC) Technology® for specific applications (military and pro-audio), totally eliminating damaging surge energy from protected equipment. The success of our engineered products led to a “Product of the Year” award from Electronic Products Magazine in 2006.