Surge Protective Device 3P 40KA 420V Voltage Protection Arrester Protector for Safety

Feature: 1. Quick Response: Under normal condition, the protector is in the state of high resistance. When the power grid handles the surge overvoltage due to lightning stroke or other reasons, the surge protector will be turned on quickly within nanoseconds, introducing the surge overvoltage to the ground, thus protecting the electrical equipment on the power grid. 2. Stable Working: When the surge voltage passes through the protector and disappears, the protector will change to a high resistance state again, so as not to affect the normal operation of the power grid. 3. Surge Protection: Mainly used to limit the amplitude of transient overvoltage, absorb, consume or discharge the surge current, so that the protected electrical components