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What are the SAD, MOV and GDT used in surge protectors ?

April 26, 2017gdt mov protectors sad surge Used

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What are the SAD, MOV and GDT used in surge protectors ?

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These are the acronym or initials of the individual component technology commonly used in surge protectors. All technologies are simply a “Voltage Sensitive Switch”. This means that at some line voltage, which is symptomatic of a surge, will cause the component to change state from a high impedance device to a low impedance path.