Can I Plug 2 Surge Protectors into One Outlet?

Yes, you can plug multiple surge protectors into one outlet. However, this is not the most efficient or safe approach to providing surge protection for your home. Instead, it's generally recommended to use a central surge protector installed in the main panel, which will safeguard your entire home. I personally use a whole-house surge protector, a sub-panel surge protector, and another for my electronics and TV cabinet. This layered approach ensures comprehensive protection while minimizing the risk of individual surge protectors being overwhelmed in the event of a significant electrical surge.

Why Not Use Multiple Surge Protectors?

No power to all outlets would be fine in most cases, but a powerful surge can destroy a surge protector, rendering it ineffective for future surges. Each surge suppressor is designed to handle surges but may no longer perform that function effectively after a destructive event. Therefore, one surge suppressor per circuit branch is adequate, and they should all be replaced together in such cases. The receptacles themselves will still function without surge protection. It's recommended to use one surge-protected outlet strip and simply add extra standard strips. This way, if a destructive surge occurs, you won't lose your investment in additional surge protectors. Most sources advise against doubling up with surge protectors.

Green Light for Multiple Surge Protectors?

Simply plugging two power strips into one duplex outlet is not inherently harmful. However, it's essential to be aware that most outlets are rated for 15 amps in residential use, so connecting too many devices can lead to overloading the outlet or circuit. It's a good idea to turn off the circuit breaker in the junction box and securely fasten all contacts to prevent heating the contacts, which could potentially cause a fire.

The Debate Rages On

The argument isn’t about whether it’s acceptable to plug multiple surge protectors into one outlet, but rather about whether it’s effective. While some might say it’s fine, the potential risk of overloading the circuit and the inefficiency of having multiple smaller protectors might outweigh the benefits. The point of surge protectors is to absorb surges, and doubling up might not significantly increase their effectiveness. In fact, some experts suggest that doubling up might not be as wise due to potential risks and inefficiencies.

Multipronged Approach to Surge Protection

It's crucial to understand that surge protection works best at multiple levels. Utilities handle the highest surges at the power pole, a whole-house surge protector installed in the main panel will cut down the surges to manageable levels, and local surge protection at the outlet will handle the remainder. Lightning protection devices like lightning rods or arrestors can further mitigate the risk of external surges, especially in high-risk areas. Grounding your TV antenna is also important to prevent damage from a hit during a lightning storm.

Given the amount and value of modern electronics in most homes, surge protectors are the cheapest insurance you can buy. These devices protect your delicate devices from damage caused by electrical surges, ensuring they function properly and safely for years to come. Investing in comprehensive surge protection can save you time, money, and potential hazards down the line.