Answer
Jul 18, 2019 - 03:22 AM
All surge protectors are good for a certain number of joules. MOV is rated in Joules. The MOV is basically full of tiny LEDs that, when a spike happens, xxxx the excess voltage off the line and burns out dissipating the voltage once they are all used up the surge protection is gone. At this point, a new unit would need to be purchased. The joules can be used up by many smaller spikes or one big spike. All surge protectors use the same concept.
Add New Comment