What is Surge Protection?

Definition

Devices and circuits that protect equipment from transient voltage spikes caused by lightning, switching, or power disturbances. Surge protection using MOVs, TVS diodes, and spark gaps is essential for drives and PLCs.

Related Terms

TVS Diode

Transient Voltage Suppressor — a semiconductor device that clamps voltage spikes...

Varistor

A voltage-dependent resistor (MOV) that clamps transient overvoltages by absorbi...

Transient

A brief, unwanted voltage or current spike in an electrical circuit caused by sw...

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