10 bestWhole House Surge Protectorsof June 2025
112M consumers helped this year.
1
Leviton 51120-1 Panel Protector, 120/240-Volt
Leviton
9.9
2
Schneider Electric – Square D HEPD Whole Home Electronics Protective Device, AC Surge Protection, Type 1 SPD, 120/240VAC, 1-Phase, 3-Wire, 80kA Surge Protection, Consumer Packaging
Schneider Electric
9.8
3
Square D - HOM250PSPD Homeline Whole House Surge Protection Device, 50kA, 120/240V, 1-Phase, No Wiring, Plug-On Neutral
Schneider Electric
9.6
6% off
4
Square D - QO250PSPD QO Whole House Surge Protection Device, 50kA, 120/240V, 1-Phase, No Wiring, Plug-On Neutral
Square D
9.5
14% off
5
EATON CHSPT2ULTRA Ultimate Surge Protection 3rd Edition, 2.38" Length, 5.25" Width 7.5" Height
Eaton
9.3
OtherUp to 11% off
Eaton BRNSURGE Type BR Whole-Panel Circuit Breaker Surge Protective Device
Square D - QO2175SB QO SurgeBreaker, Surge Protection Device, 22.5kA, 120/240V, 1-Phase, 3-Wire
Eaton CHSPT2SURGE SPD Type 2 Chsp Whole Home Surge Protector, Nema 4, Single Phase, 120/240 Volts, Ul 1449 3Rd Edition
Square D by Schneider Electric HEPD25 Universal Whole House Surge Protection Device, 1-Phase, 3-Wire for 120/240V, 25kA, Black
6
Whole House Surge Protector, Briidea Type 2 Single Phase 120/240 Volt Panel Whole House Surge Protection, Light Commercial/Residential Grade, in NEMA 1 Enclosure
briidea
9.1
7
FS140 Surge Protection Device 140,000 Amps Whole House Surge Protection Device for use with Any Brand 120/240V Load Center
RJSPHH
8.9
8
Schneider Electric – HomeLine Loadcentre Whole Home Surge Protective Device, Plug-in Surge Suppressor, Type 2 SPD, 120/240VAC, 50kA Surge Current, 1-Phase, 3-Wire Configuration
Schneider Electric
8.7
9
Siemens Boltshield FSPD036 Level 2 Whole House Surge Protection Device Rated for 36,000 Amps, 120/240V
Siemens
8.5
10
Siemens QSA2020SPD Whole House Surge Protection with Two 20-Amp Circuit Breakers for Use Only on Siemens Panels
Siemens
8.3
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A Guide to Selecting the Best Whole House Surge Protectors
Choosing a whole-house surge protector is an important step in safeguarding your home’s electrical system and all the devices connected to it. These devices are installed at your main electrical panel and are designed to block or divert excess voltage from power surges, such as those caused by lightning strikes or utility grid switching. When picking the right surge protector, it’s essential to understand the key specifications and how they relate to your home’s needs. By focusing on the most important features, you can ensure your investment provides the best protection for your household electronics and appliances.
Surge Protection Rating (kA or kV)
The surge protection rating, often measured in kiloamperes (kA) or kilovolts (kV), indicates the maximum surge current or voltage the device can safely handle. This is important because it tells you how much protection the device can offer during a large surge event. Lower ratings (10-20 kA) are suitable for smaller homes with fewer sensitive electronics, while higher ratings (40 kA and above) are better for larger homes or those in areas prone to frequent storms. To pick the right one, consider the size of your home, the number of valuable electronics, and your local weather patterns.
Response Time
Response time refers to how quickly the surge protector reacts to a surge. Faster response times (measured in nanoseconds) mean your devices are exposed to excess voltage for a shorter period, reducing the risk of damage. Most modern surge protectors have very fast response times, but if you have particularly sensitive equipment, look for models with the lowest response time possible. For general household use, any response time under 1 nanosecond is typically sufficient.
Number of Modes of Protection
Modes of protection describe how many pathways the surge protector can defend, such as line-to-neutral, line-to-ground, and neutral-to-ground. More modes mean more comprehensive protection against different types of surges. Basic models may only protect line-to-neutral, while advanced ones cover all three. If you want the highest level of safety for all your appliances and electronics, choose a model with protection on all modes.
UL 1449 Certification
UL 1449 is a safety standard for surge protective devices. Certification ensures the product has been tested for safety and performance. This is important because uncertified devices may not provide reliable protection. Always look for a surge protector that is UL 1449 listed, as this gives you confidence that the device meets industry standards for whole-house use.
Installation Type
Whole-house surge protectors can be installed either inside the main electrical panel or externally. Some require professional installation, while others are designed for easier, plug-in installation. If you are comfortable with electrical work, you might choose a model that is easier to install, but for most people, professional installation is recommended to ensure safety and compliance with local codes. Consider your comfort level and local regulations when deciding which type to buy.
Indicator Lights or Alarms
Many surge protectors include indicator lights or audible alarms to show their status. These features let you know if the device is working properly or if it needs to be replaced after a major surge. If you want peace of mind and easy monitoring, look for a model with clear indicators or alarms so you can quickly check the protection status.
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