What is the difference between a surge protector and a voltage protector?

Date:2023-06-14 09:19:57 click:463

When it comes to surge protectors, the first thing we think of is what is the surge?

The source of surge is divided into external (caused by lightning) and internal (start-stop and failure of electrical equipment, etc). The external cause is mainly lightning surge over voltage. The internal reason is because of the operation surge over voltage.


A surge protector, also known as a power strip, protects against sudden increases in voltage, or "surges," caused by lightning strikes, power outages, or fluctuations in the power grid. Surge protectors typically contain metal oxide varistors (MOVs) that absorb excess voltage and redirect it away from connected devices, preventing them from being damaged. Therefore, it can control the instantaneous over current and voltage in an acceptable range and guide the strong lightning current into the ground.

On the other hand, a voltage protector is designed to regulate and stabilize voltage levels, ensuring that electronic devices receive a consistent and safe amount of power. Voltage protectors are often used in areas with unreliable or fluctuating power supplies. These protectors typically use a combination of transformers and circuitry to adjust the incoming voltage to a safe and stable level for connected devices.

In summary, surge protectors guard against voltage spikes, while voltage protectors maintain a consistent voltage level.