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

#1

Winner

9.9 score

EATON CHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38" Length, 5.25" Width 7.5" Height

EATON CHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38" Length, 5.25" Width 7.5" Height

EATON

9.9 score

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The EATON CHSPT2ULTRA Ultimate Surge Protection is a reliable option for protecting your entire home from power surges. This device is versatile, able to connect to any manufacturer's load center (breaker box), making it a convenient choice for many households. It is described as a high-quality, easy-to-use product, which is important for those who may not be familiar with electrical installations.

Rating
9.9
Chosen by1,208
Surge Protection Rating (Joules)

Most important from
2704 reviews

Surge Protection Rating (Joules)
This unit provides peace of mind with its impressive 108K protection rating, significantly enhancing the minimal protection offered by standard installations.
#3
9.7 score

Siemens Boltshield FSPD140 Level 2 Whole House Surge Protection Device Rated for 140,000 Amps, 120/240V

Siemens Boltshield FSPD140 Level 2 Whole House Surge Protection Device Rated for 140,000 Amps, 120/240V

SIEMENS

9.7 score

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The Siemens Boltshield FSPD140 is designed for whole-house surge protection, offering impressive protection with a surge current rating of 140,000 Amps. This is a high rating, which means it can handle significant power spikes, making it suitable for homes in areas prone to frequent lightning or power surges. The device operates at 120/240V, fitting standard residential electrical systems. Its response time is quick, ensuring that surges are managed promptly to protect your appliances and electronics effectively.

Top 10 Best Whole House Power Surge Protectors 2025 in the United States

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Geeni

Geeni Surge 6-Outlet Smart Extension Cord, Surge Protector and Cord Extender, Works with Alexa, Google Assistant, Requires 2.4 GHz WiFi, 3 Feet

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10% OFF
#1

Winner

9.9 score

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EATON

EATON CHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38" Length, 5.25" Width 7.5" Height

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Chosen by 1208 this week

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Geeni

Geeni Surge 6-Outlet Smart Extension Cord, Surge Protector and Cord Extender, Works with Alexa, Google Assistant, Requires 2.4 GHz WiFi, 3 Feet

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10% OFF
#2

9.8 score

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Eaton

Eaton BRNSURGE Type BR Whole-Panel Circuit Breaker Surge Protective Device

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52% OFF
#3

9.7 score

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SIEMENS

Siemens Boltshield FSPD140 Level 2 Whole House Surge Protection Device Rated for 140,000 Amps, 120/240V

Response Time: quick
Maximum Surge Current: 140,000 Amps
Number of Protected Circuits: 4

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#4

9.5 score

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Square D by Schneider Electric

Square D - HOM250PSPD Homeline Whole House Surge Protection Device, 50kA, 120/240V, 1-Phase, No Wiring, Plug-On Neutral

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31% OFF
#5

9.4 score

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SIEMENS

SIEMENS BOLTSHIELD Plug-in Surge Protection Device 2-Pole 65kA 120/240V, 1Ø, 3W

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10% OFF

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#6

9.2 score

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Square D by Schneider Electric

Schneider Electric – Square D HEPD Whole Home Electronics Protective Device, AC Surge Protection, Type 1 SPD, 120/240VAC, 1-Phase 3-Wire, 80kA Current

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#7

9.0 score

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Square D

Square D by Schneider Electric QO2175SB QO SurgeBreaker, Surge Protection Device, 25kA, 120/240V, 1-Phase, 3-Wire

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8% OFF
#8

8.8 score

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SIEMENS

Siemens QSPD2A035B 35 Amp BoltShield Indoor Surge Protective Device

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#9

8.5 score

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SIEMENS

Siemens FS140 Whole House Surge Protection Device Rated for 140,000 Amps

Maximum Surge Current: 140,000 amps per phase
Warranty: 10-year product and equipment warranty

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11% OFF
#10

8.3 score

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Square D by Schneider Electric

Square D by Schneider Electric HOM2175SB Homeline SurgeBreaker, Surge Protection Device, 25kA, 120/240V, 1-Phase, 3-Wire

Response Time: instantaneous
Maximum Surge Current: 10 Kiloamps
Number of Protected Circuits: all circuits

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Buying Guide for the Best Whole House Power Surge Protectors

Choosing the right whole-house power surge protector is crucial for safeguarding your home's electrical system and all connected devices from sudden voltage spikes. These protectors can prevent damage to your appliances, electronics, and even the wiring in your home. To make an informed decision, you need to understand the key specifications and how they relate to your needs.
Surge Protection Rating (Joules)The surge protection rating, measured in joules, indicates the amount of energy the surge protector can absorb before it fails. This is important because higher joule ratings offer better protection against larger surges. Typically, ratings can range from 1,000 to over 4,000 joules. For basic protection, a lower rating might suffice, but for comprehensive protection, especially in areas prone to frequent or severe surges, a higher rating is recommended.
Clamping VoltageClamping voltage is the voltage level at which the surge protector starts to divert excess electricity away from your devices. Lower clamping voltages provide better protection because they activate sooner. Common clamping voltages are around 330V, 400V, and 500V. If you have sensitive electronics, opt for a lower clamping voltage to ensure they are protected more quickly.
Response TimeResponse time refers to how quickly the surge protector reacts to a surge. Faster response times mean your devices are protected sooner. Most whole-house surge protectors have response times in nanoseconds. For optimal protection, look for a surge protector with a response time of less than one nanosecond.
Maximum Surge CurrentMaximum surge current indicates the highest amount of surge current the protector can handle. This is important for understanding the protector's capacity to deal with large surges. Values can range from tens of thousands to hundreds of thousands of amperes. If you live in an area with frequent lightning strikes or power surges, a higher maximum surge current rating is advisable.
Number of Protected CircuitsThis spec tells you how many circuits in your home the surge protector can safeguard. Some models protect all circuits, while others may only cover specific ones. If you want comprehensive protection for your entire home, choose a model that covers all circuits. If you only need protection for certain areas, a model with fewer protected circuits might be sufficient.
WarrantyThe warranty indicates the manufacturer's confidence in their product and provides you with peace of mind. Warranties can range from a few years to a lifetime. A longer warranty is generally better, as it ensures you are covered for a more extended period. Consider your long-term needs and choose a surge protector with a warranty that matches your expectations.

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