The FSPD140 Level 2 Whole House Surge Protection Device is designed to protect homes and buildings from surge damage, with a rated surge current capacity of 140,000 Amps, offering high-level protection for modern electrical systems. Over half of household surges are internal surges, which occur daily, typically when devices with motors are turned on or off, transferring power to or from other appliances. Surges can also happen when power is restored after an outage. Lightning-induced surges can cause instant damage. Using this device ensures that your appliances, electronics, and other equipment are fully protected from potential surge-related damage.