Introduction
Not all devices that look similar offer the same protection. Many consumers assume a power strip equals surge protection, but this misconception could cost you thousands.
What Is a Power Strip?
A power strip is a multi-outlet extension of a wall socket. Unless explicitly labeled, it offers no surge protection.
What Makes an SPD Different?
Surge Handling: SPDs are designed to absorb and redirect high-energy surges.
Clamping Voltage: SPDs activate at a precise voltage threshold.
Energy Absorption: SPDs can handle thousands of joules of energy.
Component Design: SPDs use MOVs, TVS diodes, or GDTs, not just wiring.
Visual Comparison
Feature Power Strip SPD
Surge Protection No Yes
Energy Rating None 200-10,000+ Joules
Response Time N/A <1ns to <25ns
Indicator Light Often missing Usually included
When a Power Strip Is Not Enough
In lightning-prone areas
For expensive electronics
For industrial or medical equipment
Conclusion
Don’t mistake a basic power extender for real protection. For reliable surge defense, invest in a certified SPD.
