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    Why Use Surge Protection?

    Homes today have an estimated $15,000 worth of electronics and may experience up to 100 surges per month that can degrade or damage your electronics, shortening their life.

    People often think of power strips when they hear "surge protection". Commonly used as an extension to outlets, many power strips offer no surge suppression at all. Others only offer low-level surge suppression, leaving them powerless to block appliance-damaging surges.

    When surge protection is installed at the electrical panel, it helps protect all the devices in the home, including those that are not plugged into a surge plug strip.

    Compare Square D surge protective devices

  • Save Money, Memories, & Time

    Protect with Square D Whole Home Surge Protection

    Electrical surges can cause big problems. When surge protection is installed at the electrical panel, it helps protect all the devices in the home, including your appliances. Learn more about our Square D™ Whole Home Surge Protection products to fit every home and every budget.
  • Square D™ Whole Home Surge Protective Devices

    Everything electrical is protected

    Square D Whole Home Electronics Protective Devices are compact and affordable surge suppressors designed for installation in any manufacturer's residential load center.
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  • Whether you need a device that is installed directly into your house load center, like our Plug-on Neutral options, or a device that will be outside your load center, like our versatile HEPD options, we’ve got you covered. We offer protection that can connect to any brand load center. Square D gives you peace of mind, with warranties up to 5 years and $100,000 in connected equipment.


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  • An electrician can install whole home surge protection right at your home's electrical panel, where it blocks the surge. Contact your certified electrical contractor to install Square D Whole Home Surge Protection today. Ask your electrician:
    • Do you install Square D surge protection?
    • Can I buy it myself and have you install it?
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Better Protection

With surge capacity up to 80ka, Square D SPDs are prepared to protect your home against even the highest of surges, far beyond the capability of power strips and many other surge protective devices. Square D offers a variety of compact and affordable surge suppressors, with easy-to-understand LED indicator lights and a connected equipment limited liability warranty.
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Easy Installation

Square D Plug-on Neutral SPDs offer the easiest, quickest installation around. The SPD connects directly to the equipment bus of a QO or Homeline Plug-on Neutral load center with no wiring needed, saving you time and money. Contact your certified electrical contractor to install your whole home SPD today.

Surge Protection FAQs

  • Surges, or “transient voltages” occur when there is a temporary voltage spike which travels throughout your entire electrical, phone, network and or cable system. These can be externally generated (weather and utilities) or internally generated from devices inside the home, which is the more common type of surge. Up to 100 of these surges can occur per month!
  • Some power surges can present enough strength to immediately contribute to severe damage, if not destroy, electronics. Surges occur regularly, wearing down and shortening the life of electronics and appliances.
  • When a surge protective device senses a transient voltage spike, it uses internal components called Metal Oxide Varistors (MOVs) that act like magnets for the excess voltage, and sends it to the load center’s ground wire before it can reach your home’s connected electronics.
  • When researching your surge protector, consider the warranty. Some models include a connected equipment coverage. This means that you could be reimbursed up to the warranty limit should your electronics ever become damaged by a power surge.

    Square D gives you peace of mind, with warranties up to 5 years and $100,000 in connected equipment.
  • Square D by Schneider Electric™ offers a variety of compact and affordable surge suppressors. With easy-to-understand LED indicator lights and a connected equipment limited liability warranty, Square D Surge Protective Devices will offer you peace of mind. Whether you need a device that is installed directly into your house load center, like our Plug-on Neutral options, or a device that will be outside your load center, like our versatile HEPD options, we’ve got you covered. We offer protection that can connect to any brand load center.
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Residential Surge Protection Products

See our full range of residential surge protection products.
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Where to Buy - Retailers

See a current list of retail locations offering Square D products.
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See All Surge Protection Devices

Need products for other applications? Browse all surge protection products, including SPDs for industry.
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Square D™ Products & Support

Visit the online Square D Resource Center for information on our range of Square D products and services.

The NEMA Surge Protection Institute (NSPI)

The NEMA Surge Protection Institute (NSPI) is an educational outreach effort initiated by the Low Voltage Surge Protective Devices Section of the National Electrical Manufacturers Association (NEMA), a not-for-profit trade association. Our mission is to heighten awareness of the benefits of surge protection to all users of low voltage electrical systems in North America for the purpose of promoting proper application and usage.
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