Re: Digital Controller and SSR Questions?
Yes, the controller output on the SCR pins is DC. Make sure the specs on your SCR indicate that it draws less than ~40ma and you use the correct +/- on both your controller and the SCR. Your diagram is correct for one heater. When you wire the other three, wire them in parallel. You'll be drawing about 42 amps so make sure your circuits will handle the load.
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