I searched through as many old threads as I could read and couldn't find this.
If I am running a 5500W 240V heater and want to control it with a SSR on one of the hot legs, does it have to be sized to handle the total current flowing to the heater, or is the current through each hot leg half the total current because it flows in both directions in each leg?
I want to know if I need to buy 25+A SSR's, or if a 15 or 20A will work. I have access to a couple of 20A.
Thanks
If I am running a 5500W 240V heater and want to control it with a SSR on one of the hot legs, does it have to be sized to handle the total current flowing to the heater, or is the current through each hot leg half the total current because it flows in both directions in each leg?
I want to know if I need to buy 25+A SSR's, or if a 15 or 20A will work. I have access to a couple of 20A.
Thanks