Since their introduction in the 1970s, there is no question that ground-fault circuit interrupters (GFCI) have saved lives! Take the time to watch the video where Mike and the team explain the theory behind ground-fault circuit interrupters.

This video is extracted from Mike Holt's Understanding Electrical Theory Library, to learn more about this topic visit https://www.mikeholt.com/Theory. For additional information call 888.632.2633.

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