How Surge Protectors Works?

Surge Protective Devices (SPDs) are designed to limit damage from electrical surges. Surges happen extremely fast and may pass through electrical breakers before the breaker can trip. This is because breakers are designed for over current protection, and not surges. Electrical surges can become powerful enough to damage or kill downline products that include electronics. Even if downline products continue working, their product lifespan may be reduced.

Surge protection has become even more important these days as many more products include electronic chips. Even LED lighting can be affected by surge activity. While commercial/industrial surge applications have been around for years, the NEC 2020 code was updated to mandate surge protection for residential dwellings as well.