Quote:
Originally Posted by Dusty_Star
You are correct, the SECO surge mitigator takes care of roughly 20% of the surges, the electrical panel one -the remaining 80%.
Source: Jrref Surge protector
If I had to go with one first in a phased approach, I would choose the 80% & then I would choose the 20% second.
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What is the 20/80% and where does that comparison come from?