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- TL;DR Summary
- There is a straight path for electricity to travel from my breaker box to my disconnect to my condenser without going through a surge protector. How does the surge protector on my disconnect of my condenser protect my condenser?
The photograph above this text is a drawing or diagram I made of the electrical set up of my disconnect and my surge protector. As the drawing shows, there are four bolts holding wires in my disconnect. I made little circles represent the bolts holding the wires in my disconnect. The first bolt is the circle on the far left. The second bolt is the circle that is second from the left. The third bolt is the circle that is third from the left. The fourth bolt is the circle to the far right. When the disconnect is plugged in, a metal bar (which is a conductor of electricity) connects the first bolt to the second bolt, and another metal bar (which is also a conductor) connects the third bolt to the fourth bolt. The first wire of the surge protector goes to the second bolt. The second bolt merely holds the wire of the surge protector to the wire of the first leg of power going to the condenser. The third bolt merely holds the wire of the surge protector to the wire of the second leg of power going to the condenser.
I can think of two ways that a surge of electricity could go through my breaker box to the disconnect of my condenser: 1# a surge of electricity due to a lightning strike and 2# a surge of electricity due to a microwave or other electronic device or an appliance (such as the refrigerator) turning on.
If the surge protector was wired up so that current had to go through the surge protector to get to my condenser, I could understand how the surge protector would protect my condenser from a surge of electricity. If a surge of electricity went through my breaker box to my disconnect, I don't see any reason why the current would not bypass the surge protector and go straight to my condenser.
Since a surge of electricity from the breaker box would have a straight path from the breaker box to my disconnect to the condenser (without ever going through the surge protector), how would my surge protector on the disconnect for my condenser protect my condenser from a surge of electricity?