APC PMG3S-A 480/277 V 120 kA Surge Protector | Panel Mount, Modular

Defend critical electrical infrastructure at the panel with a surge arrestor designed for 480/277 V systems and 120 kA surge capacity. This APC Schneider Electric model is built for direct-ship deployment in environments where power quality, service continuity, and equipment longevity are tied to proper surge suppression. The panel-mount, modular architecture makes it a practical choice for facilities teams that need a cleaner installation path and easier service planning than fixed consumer-style protection can offer. The integrated surge counter adds operational visibility, helping maintenance teams confirm event activity instead of guessing whether the protection path has been exercised. Specify this model when the cost of a panel outage, damaged controls, or repeated replacement of downstream assets exceeds the premium for a properly engineered surge solution. It is aimed at commercial and industrial buyers who need protection that belongs in the electrical room, not at the edge of the desk. For high-voltage panels, that distinction is the difference between basic coverage and infrastructure-grade defense.