Surge Protective Devices (SPDs) are essential for safeguarding electrical systems against voltage surges and transient overvoltage events. These devices ensure the reliability of electrical circuits by protecting against lightning strikes, power fluctuations, and other transient voltage spikes. SPDs are durable, efficient, and easy to integrate into both AC and DC systems. Their quick response time and robust protection make them ideal for use in solar power systems, industrial circuits, and commercial applications, preventing damage to sensitive electronic equipment and ensuring operational continuity.