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Whole Home Surge Protectors

10 Best Whole Home 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 designed to protect your home or office from damaging power surges. It universally connects to any manufacturer’s load center, making installation straightforward for most users. This surge protector boasts features that cater to various settings, such as offices, restaurants, apartments, and hotels. Its compact dimensions (2.38" x 5.25" x 7.5") and lightweight design (8 ounces) also add to its appeal, allowing it to fit well in tight spaces.

Rating
9.9
Chosen by1,380
Surge Protection Rating (kA)

Most important from
2680 reviews

Surge Protection Rating (kA)
This surge protector offers excellent protection, significantly surpassing basic installations with a high protection rating of 108K.
#2
9.8 score

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

55%OFF

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

Eaton

9.8 score

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The Eaton BRNSURGE Type BR Whole-Panel Circuit Breaker Surge Protective Device offers a solid level of protection with its 18 kA surge current rating, suitable for safeguarding home electrical systems. Utilizing 2 branch circuit spaces and being a panel-mounted device, it integrates well into existing breaker panels, making it a convenient choice for homeowners looking to enhance their electrical safety without extensive modifications.

#3
9.6 score

Siemens QSPD2A035B 35 Amp BoltShield Indoor Surge Protective Device

Siemens QSPD2A035B 35 Amp BoltShield Indoor Surge Protective Device

SIEMENS

9.6 score

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The Siemens QSPD2A035B BoltShield Indoor Surge Protective Device is designed to offer whole-home surge protection with a solid 35kA surge current rating per phase. This is relatively high and should be adequate for most residential settings, effectively guarding against power surges. It fits seamlessly into existing Siemens load centers, making installation straightforward as it plugs directly into the load center bus, which is a plus for those looking for quick and easy setup without professional help.

Top 10 Best Whole Home Surge Protectors 2025 in the United States

#1

Winner

9.9 score

Slide 1

Eaton

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

UL 1449 Rating: Yes

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Chosen by 1380 this week

#2

9.8 score

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Eaton

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

Surge Protection Rating (kA): 18 kA

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55% OFF
#3

9.6 score

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SIEMENS

Siemens QSPD2A035B 35 Amp BoltShield Indoor Surge Protective Device

Surge Protection Rating (kA): 35kA

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#4

9.5 score

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SIEMENS

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

Surge Protection Rating (kA): 140

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#5

9.3 score

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SIEMENS

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

Surge Protection Rating (kA): 65kA

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#6

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

Surge Protection Rating (kA): 25kA
Number of Protection Modes: 3
UL 1449 Rating: 3rd Edition
Warranty: 3 year

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16% OFF
#7

8.8 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

Surge Protection Rating (kA): 80 kA
Clamping Voltage: low
Response Time: impressive

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24% OFF
#8

8.5 score

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Square D by Schneider Electric

Square D - QO250PSPD QO Whole House Surge Protection Device, 50kA, 120/240V, 1-Phase, No Wiring, Plug-On Neutral

Surge Protection Rating (kA): 50kA

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31% OFF
#9

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

Surge Protection Rating (kA): 25kA
UL 1449 Rating: 3rd Edition

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#10

8.0 score

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Eaton

Eaton CHSPT2SURGE SPD Type 2 Chsp Whole Home Surge Protector, Nema 4, Single Phase, 120/240 Volts, Ul 1449 3Rd Edition

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Buying Guide for the Best Whole Home Surge Protectors

Choosing the right whole-home surge protector is crucial for safeguarding your home’s electrical system and all connected devices from power surges. Power surges can occur due to lightning strikes, power outages, or even the operation of high-power electrical devices. A whole-home surge protector is installed at your main electrical panel and provides a first line of defense against these surges. Here’s how to approach picking the best one for your needs.
Surge Protection Rating (kA)The surge protection rating, measured in kiloamperes (kA), indicates the maximum surge current the protector can handle. This is important because it determines the level of protection your home will receive. Ratings typically range from 10 kA to 100 kA. For basic protection, a rating of 10-20 kA might suffice, but for comprehensive protection, especially in areas prone to frequent lightning storms, a higher rating of 40-80 kA is recommended. Consider your local weather patterns and the value of your electronic devices when choosing the right rating.
Clamping VoltageClamping voltage is the voltage level at which the surge protector will start to divert excess electricity away from your home’s wiring. This is crucial because a lower clamping voltage means better protection for your devices. Common clamping voltages are 330V, 400V, and 500V. For sensitive electronics, a lower clamping voltage (around 330V) is preferable. If your home has robust electrical systems and fewer sensitive devices, a higher clamping voltage might be acceptable.
Response TimeResponse time refers to how quickly the surge protector reacts to a surge. Faster response times are better because they reduce the amount of time your devices are exposed to the surge. Most whole-home surge protectors have response times in the nanosecond range. Look for protectors with response times of less than 1 nanosecond for optimal protection.
Number of Protection ModesProtection modes refer to the different types of surges the protector can handle. Common modes include L-N (Line to Neutral), L-G (Line to Ground), and N-G (Neutral to Ground). Having multiple protection modes ensures comprehensive protection against various types of surges. Ideally, choose a surge protector that offers all three modes (L-N, L-G, N-G) for the best protection.
UL 1449 RatingThe UL 1449 rating is a certification from Underwriters Laboratories that indicates the surge protector has been tested and meets specific safety and performance standards. This rating is important because it ensures the device will perform reliably under surge conditions. Look for surge protectors with a UL 1449 3rd Edition rating, as this is the most current and stringent standard.
WarrantyThe warranty provided by the manufacturer can give you an idea of the product’s reliability and the company’s confidence in its performance. Warranties can range from a few years to a lifetime. A longer warranty period is generally better, as it offers peace of mind and protection for a longer duration. Consider how long you plan to stay in your home and the value of your electronics when evaluating warranty options.

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