A surge protector is too recognized as a spike suppressor, or surge suppressor, or surge diverter. It is a device intended to protect electrical devices from voltage spikes. It guards the appliances by detouring the fault current to the ground. SPD is intended to restrict transient overvoltages of environmental inception and redirect flow waves to earth, in order to restrict the abundance of this overvoltage to a worth that isn't unsafe for the electrical establishment and electric switchgear and control gear.











