Originally Posted by wh4tig0t
Yes you can do it. I have 2 20amp ssrs one for a 2000w element, and the other for a 1500 w element. Each ssr is fed from a different outlet on two separate circuits. To control the ssrs they are wired in series from the control circuit on the PID. Its been a while since I've looked, but m fairly sure that the control circuit on an Auber PID is enough to control several ssrs.
Interesting... I would have wired them in parallel and not even thought about it, but wiring them in series would probably work fine. There is plenty of voltage drop across the control signals of the average PID to switch two of your average SSRs in series.
I think most PIDs put out appx 12VDC and most SSRs need a minimum of 3VDC to switch.
It's just a matter of current pulled from the PID at that point.