10 Best Hardwired Whole House Surge Protectors 2025 in the United States

The Schneider Electric Square D HEPD Whole Home Electronics Protective Device is designed to protect your entire home’s electrical system from damaging voltage surges, rather than just individual devices plugged into surge strips. It offers a robust surge protection rating, with an 80,000-amp current capacity, making it suitable for handling strong electrical spikes caused by lightning or power fluctuations. This device plugs directly into your home's load center, making installation straightforward for most electricians. It covers a standard residential voltage of 120/240V and supports a single-phase 3-wire system, which fits most home electrical setups.

One of the key strengths of this surge protector is its ability to safeguard all connected electronics—from computers and TVs to HVAC and security systems—extending their lifespan by preventing harmful voltage spikes. The LED status indicator is a helpful feature, providing a clear signal when the device needs to be replaced, ensuring ongoing protection without guesswork. It holds UL 1449 certification, which means it meets recognized safety and performance standards.

The device is rated for 80 amps current, which suits typical household circuits but may not be enough for extremely large or specialized electrical systems. Backed by a 5-year warranty and strong customer ratings, it provides reliable, whole-home surge defense for most residential users. This product is especially beneficial if you're looking for a hardwired solution that protects beyond individual outlets or power strips.

The Square D HOM2175SB Homeline SurgeBreaker offers reliable whole-house protection with a surge protection rating of 25kA, making it capable of handling substantial surges. It's designed for 120/240V, single-phase systems, which makes it suitable for most residential setups. One of its standout features is the equal protection it provides across all circuits and receptacles throughout the home, ensuring comprehensive coverage.

The device includes an LED indicator that can help in quickly assessing its operational status. Additionally, its UL 1449 3rd Edition listing ensures it meets stringent safety standards. The plug-on installation requiring 2 spaces is straightforward but might need professional assistance if you're unfamiliar with electrical work.

It is constructed with durable plastic and metal materials and is compact in size, which fits well in tight spaces. It appears to be a robust option for those needing whole-house surge protection, particularly in homes with a Homeline load center setup.

The Intermatic IG2240-IMSK Advanced Surge Protector offers a robust solution for safeguarding your entire home’s devices and appliances. One of its significant strengths is the six modes of comprehensive protection, utilizing advanced TPMOV technology, which ensures your electronics are shielded from various types of surges.

The easy maintenance aspect, including replaceable IModules with LED indicators for quick status checks, adds to its user-friendly appeal. This is particularly beneficial for those who may not be technically inclined but want effective surge protection without the hassle of complex installations or frequent replacements of the entire unit. Additionally, the convenient Module Power Switch allows for safe disconnection of power when replacing modules, further enhancing its ease of use.

The durable, tamper-proof design means it is well-suited for indoor metal applications and provides an extra layer of security. Another notable advantage is the extended 10-year warranty, which includes a $50,000 connected equipment guarantee, offering substantial peace of mind regarding the protection of your valuable appliances. The features and benefits highlighted make it a strong contender for those seeking reliable, whole-house surge protection with minimal maintenance requirements.