Re: Yet another wiring question...
Check the specs on your SSR. For resistance loads (heating elements), most need to be run at less than or equal to 75% of it rating. And that's with it mounted on a heat sink. That means that an SSR rated 60A should not be loaded to more than 45A.
What's good about using SSRs over electromechanical relays is that they can handle faster cycling that is common in PIDs for better temperature control. The SSRs will also turn on at the Zero boundary of an ac cycle and ramp up to the load rather than slamming your circuits with the full load.
|