Originally Posted by maltbarleyhops
this would be an "dc to ac" ssr correct?
Nope. The dc side of the SSR controls the flow on the other side.
Only 1 leg of 240v or the hot side of 120v flows through the SSR on the switched side. This is where the AC is.
The control circuit is DC and controls the off/on of the S
AC is being converted to DC by the wall transformer to power the PWM.