We have a big Washer in our Heat Treat room. There is a 100amp relay or contactor that is turning on and off every minute. Yeah I know, but that's the way the machine came brand new. They also sent a replacement contactor because they said it would go out in 6 months. I am looking into a different setup. I replaced some other contactors with a mercury style that are still working on another machine that was cycling a lot also. The problem with an SSR is that if the SSR goes out they usually go out shorted and the contactor is running heaters, which would not be good. Anyone have a different idea?
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