A Supplemental Protection Panel is a specialized electrical enclosure designed to provide advanced protection for electrical systems and connected equipment beyond the basic overcurrent protection found in standard breaker panels or motor controllers. These panels consolidate various protective devices such as surge protection devices (SPDs) to guard against transient voltage spikes, harmonic filters to mitigate power quality issues caused by non-linear loads, and potentially enhanced ground fault or arc flash protection. By installing a supplemental protection panel, you can significantly improve the reliability and longevity of sensitive electronics, variable frequency drives, and other critical equipment by shielding them from damaging electrical disturbances, ultimately reducing downtime and maintenance costs and ensuring compliance with stringent electrical codes.