Can You Plug In A Surge Protector Into Another

Can You Plug a Surge Protector into Another? Yes, But Here's Why You Should (and Shouldn't)

Protecting your valuable electronics from power surges is crucial, and surge protectors are your first line of defense. But what happens when you need more outlets than your single surge protector provides? Can you plug a surge protector into another surge protector? The short answer is yes, but it's not always the best practice. This article will explore the reasons why you might, and more importantly, why you might not want to, daisy-chain surge protectors.

Understanding Surge Protectors and Their Limitations

Surge protectors work by diverting excess voltage away from your connected devices. They contain Metal Oxide Varistors (MOVs) that absorb the surge, sacrificing themselves in the process. While effective, these devices have limitations. Each surge protector has a specific Joule rating, indicating the amount of energy it can absorb before failing. Plugging one surge protector into another essentially creates a series circuit, and this setup has potential drawbacks.

Why You MIGHT Plug One into Another:

• Limited Outlets: This is the most common reason. If you have multiple devices and only one surge protector with insufficient outlets, daisy-chaining offers a simple solution to expand your protected outlets.
• Convenience: It's easier to plug one surge protector into another than to run multiple extension cords. This simplifies the setup, particularly in cluttered spaces.

Why You MIGHT NOT Want To Plug One into Another:

• Reduced Protection: Each surge protector in the chain reduces the overall effectiveness. The first surge protector absorbs the initial surge, and any remaining energy passes on to the second. This means the second protector has less capacity to absorb further surges, potentially diminishing its protective capabilities. The overall Joule rating isn't additive; it's actually reduced.
• Increased Risk of Failure: Because each surge protector acts as a potential point of failure, daisy-chaining increases the chance that one (or both) will fail during a significant surge, leaving your devices vulnerable.
• Heat Buildup: Multiple surge protectors stacked together can lead to excessive heat buildup, especially under heavy load, potentially damaging the devices or even posing a fire hazard.
• Warranty Issues: Connecting surge protectors in series might void the warranty of one or both units, leaving you without recourse if a failure occurs.

Better Alternatives to Daisy-Chaining Surge Protectors:

Instead of daisy-chaining, consider these alternatives for better protection and safety:

• Purchase a Surge Protector with More Outlets: This is the most straightforward solution. Choose a surge protector with enough outlets to accommodate all your devices.
• Use Multiple Surge Protectors: Instead of daisy-chaining, utilize separate surge protectors plugged directly into wall outlets. This distributes the load and offers better protection.
• Consider a Whole-House Surge Protector: For comprehensive protection, a whole-house surge protector installed by a qualified electrician provides the most robust safeguard against power surges affecting your entire home's electrical system.

Conclusion:

While it's technically possible to plug a surge protector into another, it's generally not recommended. The potential reduction in protection and increased risk of failure outweigh the convenience. Investing in a high-quality surge protector with sufficient outlets or utilizing multiple units is a far safer and more effective way to safeguard your valuable electronics from power surges. Prioritize safety and choose the best approach to ensure your devices remain protected.