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EMP Shield – Home EMP & Lightning Protection + CME Defense for Flush Mounted Breaker Box (SP-120-240-RL/Concealed Model) Lightning, Solar Flare, and Surge Protection

  • Based on 206 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by Amazon

Arrives Thursday, Mar 12
Order within 22 hours and 31 minutes
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Features

  • Complete Protection: EMP Shield provides protection for EMP (electromagnetic pulse), CME (coronal mass ejection), lightning, and over-voltage.
  • Backed by $25,000 of Insurance: If the device doesnt protect your electronics, we will cover the damage. Its that simple.
  • Incredibly Powerful: The EMP Shield is capable of withstanding up to 228,000 AMPS per phase.
  • Industry Leading 10 Year Warranty: If it fails at anytime during the 10 year Limited Lifetime warranty, we replace it for $50.

Brand: EMP Shield


AC Adapter Current: 228000 Amps


Number Of Circuits: 3


Phase Type: Three Phase


UPC:


Brand: ‎EMP Shield


AC Adapter Current: ‎228000 Amps


Number Of Circuits: ‎3


Phase Type: ‎Three Phase


UPC: ‎681827948074


Manufacturer: ‎EMP Shield


Package Dimensions: ‎10.71 x 7.17 x 4.8 inches


Item Weight: ‎2.7 pounds


Date First Available: ‎January 24, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Mar 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Easy to install
It was easy to install. One wire on each leg and the other two on the ground and neutral. It was in the panel in less than 15 minutes. Just know you need a 20 amp double pole breaker. I don't know how well it works until something bad happens.
Reviewed in the United States on October 16, 2025 by Bruce Walker

  • The Unit Came With Easy To Follow Instructions
We purchased this EMP Shield – Home EMP & Lightning Protection + CME Defense for Flush Mounted Breaker Box for protection of our home electrical equipment in the event of a solar Coronal Mass Ejection event. We have already installed one on our truck so we wanted to protect our in home electronics and appliances. It seems that we are now currently in a solar time of many solar flares but we have been lucky so far. Back in 1859 the Carrington Event occurred that caused wide spread fires along the route of the telegraph stations across America. Today such an event could put us back several hundred years with no functional electrical grid to maintain our society. Trucking and mass transportation of food and materials may stop altogether. So we didn't want to be exposed to that risk. The unit was simple to install to both legs on the load side of a 20 Amp breaker, and the ground and neutral wires to attached to the bars. I mounted the unit just below the electrical panel and the two green leds indicate the EMP shield is functioning properly. I recommend this well engineered CME/EMP protection. ... show more
Reviewed in the United States on August 30, 2023 by Dwight Pretulac

  • Peace of mind for 2024 and the future.
High quality built and easy to self install for those w basic electric know-how. Whole house protection in event of an EMP or lightning event so comforting with EMP Shield taking care of everything electrical from being destroyed. Now have EMP Shields on our two cars, RV and home. Good decision for our “peace of mind” that we’ll be be abkk ok e to reach home and our home be fine after an EMP. 99% of Americans are not prepared for these dangerous times. Are you? ... show more
Reviewed in the United States on March 30, 2024 by Byrdbrain

  • Peace of mind
This is a whole house surge protector that shunts voltage spikes from lightning strikes, CME solar events or an EMP. The documentation indicates that it has been tested by US Military, see their docs for specific information. This device is relatively easy to install. I am not an electrician and had no difficulty installing it but I would join with others and recommend that you get an electrician's advice or help. This device along with additional ferrite ring cores for your incoming lines (from other sources) is about the best protection you can get. It is pennies on the dollar for the protection to your homes myriad electronic circuits and devices. ... show more
Reviewed in the United States on April 10, 2024 by torahsamurai

  • Far exceeds NEC requirements for new construction
I had to replace the service panel in my house. Since the NEC requires surge protection I had this installed as the specs exceed the minimum requirements by more than 10x
Reviewed in the United States on November 27, 2025 by Opa S

  • Hope this help you decide
I am a verified purchaser and have no affiliation with EMP Shield other than purchasing their product. I gave this item 4 stars because ultimately, I won’t know if it works until I get hit with either a High Altitude EMP, Coronal Mass Ejection (CME), or lightning strike. However, I did as much research as I could to include reading the EMI Test report from Keystone Compliance which evaluated the device for: MIL-STD-188-125-1, MIL-STD-461G & MIL-STD-464C and passed. It’s also conforms to UL 1449 standards. Further, I also read DHS’s Electromagnetic Pulse (EMP) Protection and Resilience Guidelines for Critical Infrastructure and Equipment and EMP Shield is listed as a vendor supplying EMP rated filters and suppressors. These reports are all listed on their website with links to the source. The owner also has an informative one-hour interview on YT discussing this product in detail. I also watched videos from Dr. Arthur Bradley (empdoctor), who has dozens of videos and testing on this subject and is not affiliated with EMP Shield. Unfortunately, he has not reviewed this product to my knowledge, but his research is consistent with what EMPShield claims to accomplish, especially if you further harden your plug in electronics (especially microprocessors) with Broadband EMP Ferrites, which is also recommended in the DHS report. Dr. Bradley recommends the Siemens FS140 for surge protection with Ferrites on the AC supply lines to the electric panel, and as I mentioned, individual ferrites on the AC plug in for each electronic device. Unlike the Siemens FS140, EMP Shield claims to block the E1, E2, and E3 energy from an EMP, and confirmed by Keystone Compliance, which is why I bought it. BTW, the Siemens FS140 is almost as much on Amazon as EMP Shield and not half the price as the previous reviewer stated; if you purchase from Amazon vice their website. Installation is pretty much as advertised, although unless you have two adjacent and open slots in your panel, it’s going to take you more than “10 minutes or less” to install the 2 pole 20 amp breaker. So, do your own research and decide. ... show more
Reviewed in the United States on March 19, 2022 by Ted

  • Easy to Install with Basic Electrical Knowledge.
I removed the circuit breaker panel. Installed a new double 20amp breaker to connect the EMP Shield to. This was done to have a clean circuit with ZERO load on it. I mounted the box to the inside of circuit breaker panel with 2 self tapping sheet metal screws (not included). Mine is wired and installed like "Figure 7" in the instructions. The only difference is the new double 20amp breaker installed on the bottom left side of the panel. I verified both L1 and L2 LEDs were on and monitoring the circuit. If you don't know what you're doing working with electricity. STOP and pay an electrician, it will save your LIFE and keep you from possibly burning your HOUSE DOWN!!! I got several estimates so people here will know what to expect. The low estimate was $250 and the upper estimate was $325. This is in North Texas. ... show more
Reviewed in the United States on April 5, 2024 by oldzoom

  • Surge Protector
Easy to install. Make sure you install on a double pole 20amp breaker.
Reviewed in the United States on July 18, 2025 by Prahlad LLC.

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