This group includes components and devices designed to protect electrical systems and equipment from power-related disturbances, ensuring reliability, safety, and performance. Surge Suppressors: Protect against voltage spikes and surges caused by lightning, switching, or power grid issues, safeguarding sensitive electronics. Circuit Protection Devices: Include fuses, circuit breakers, and resettable PTCs to prevent damage from overcurrent and short circuits. Line Filters: Reduce noise and electromagnetic interference (EMI) on power lines, ensuring stable power delivery.