Surge Protective Device

A surge protector (or spike suppressor, surge suppressor, surge diverter, surge protection device (SPD) or transient voltage surge suppressor (TVSS) is an appliance or device intended to protect electrical devices from voltage spikes in alternating current (AC) circuits. When a surge current or voltage is suddenly generated in an electrical circuit or communication line due to external interference, the surge protector can conduct and shun the current in a very short period of time, thereby avoiding damage to other equipment in the circuit by the surge.

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