I did a search to see if this question has been asked before, with no results. Surely there are a lot of folks out there with legal limit amps on 240 V circuits. My question is, what do you do for surge protection? I have two 240 V circuits in the radio room. One is 15 A with NEMA 6-15 outlets for my two THP SS amps. The other is 20 A with a single NEMA 6-20 outlet for my Alpha 9500. I have been so far unable to find any surge protectors for 240 V with either NEMA 6-15 or 6-20 connectors. All the 240 V surge protectors I have found use NEMA 5-15 ( 120 V ) connectors, which doesn't make any sense to me at all. I did find one with "universal" connectors for "international" customers but that is only rated 13 A. My Alpha 9500 was recently knocked out by a power surge from a nearby lightning strike. Apparently scrambled the main controller board. So if I can ever get Alpha to respond to my inquiries and eventually get the board fixed or replaced, I would like to discourage this from happening again.