The Best Whole House Surge Protectors of 2023

Siemens offers a range of surge-protection devices. The FS140 is their premium model, offering the highest protection on our list at 140kA. It comes with a tough thermoplastic NEMA 4X-rated case and can be fitted to any main breaker panel via a double-pole circuit breaker of 30 amps (A) or less.

Commercial-class diagnostics means there are three stages of alert, including an audible alarm and flashing red LED light if the electrical system is unprotected. Siemens coaxial and digital subscriber line (DSL) phone and modem protection devices can be added to provide comprehensive coverage, though it costs extra.

This device is a bit more expensive than much of the competition, but this level of protection should offer peace of mind even in lightning-storm-prone areas.

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Get the Siemens whole-house surge protector at Amazon, Lowe’s, or The Home Depot.