• What it does: It monitors the electricity coming from the wall. If the voltage gets too high, it grabs the extra electricity and sends it safely into the ground wire, keeping your devices safe.
• Why you need it: A sudden spike can instantly destroy, or slowly weaken, the delicate computer chips inside modern electronics.
• When to Replace: If your surge protector is over 5 years old, it is recommended to replace it to ensure your electronics remain safe.

IEC 61643-11 is the international standard governing performance, safety, and testing for low-voltage surge protective devices (SPDs) connected to AC power systems. It defines how SPDs limit surge voltages and divert currents caused by lightning or switching, typically rating devices for voltages up to 1,000 V RMS and 50/60 Hz.