What is a Surge Protective Device (SPD)?

2018-01-05T15:20:37+00:00

SPD is a device designed to limit surge energy to electrical equipment. It does this by diverting or limiting surge current. An SPD is wired in parallel to the equipment it is intended to protect. Once the surge voltage exceeds its designed rating it “begins to clamp” and starts to conduct energy directly to the [...]

What is a Surge Protective Device (SPD)? 2018-01-05T15:20:37+00:00