Surge protectors safeguard millions of dollars of equipment and devices that may be connected together, powered by a common electronic data system. Damages caused by lightning strikes and surges from electric switching can cause great damage to industrial systems, costing businesses millions of dollars in damages, as well as possibly resulting in the crashing of critical communications or power management systems that these functions need. https://www.se.com/in/en/product-subcategory/7940-surge-protection-devices/