Have a new hot air furnace by Trane whose circuit board was fried during a recent lightning storm.
Have a very old electrical service box, and for a variety of reasons (no spare ckt breakers or room for new ones)I cannot install a "whole-house" surge protector at the service box. These require to two free ckt breakers which I don't have.
For now, it looks like the only reasonably practical approach is to put one of these Intermatic units in right next to the furnace, on the AC line going to it.
The 490 V clamping volt., however, bothered me. Seems a bit high; what do you think ?
What is this 8/20 us Surge spec., please ? Have never heard of it.