I would also add some 10-40uF or so motor run caps from the hot(s) to neutral to suppress small surges without wearing out the MOVs. And also a choke upstream of the protector and load although that might not be practical for high current loads.
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To my surprise, shortly after Naomi Wu gave me a bit of fame for making good use of solar power, Allie Moore got really jealous of her...
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