Those look to be pretty impressive.
I've never seen Solid State Relays that were rated for that amperage that were DC, reason being, a lot of the AC only SSR's specs seem to say that they turn on or off mid sign wave, when the voltage is at -0-, I even have one that is rated at 80 amps, 240v AC.
The spec's that they list are a little confusing and the fact that they come with a big heat sink I have to wonder how long it really will last, but if it's used in a situation where it's over sized it should be fine, right?
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