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Sparky256
Sparky256
22:17
I was wondering if this Q & A was stranded, because I was up all night trying to explain the same things over and over again to the OP, who seemed to accept my answers but cast no vote. It was to late for any passerby to see it.
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A: Is this a Disconnector beside MOVs?

Sparky256In the USA UL 3rd and 4th edition and ISO require all SPD devices to have both thermal disconnects as well as fast blow fuses. The fuses protect against sudden overloads due to a powerful surge, such as a lightning strike. The thermal fuse protects the SPD from over voltage which may cook the M...


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