I would like to thank everyone who contributed to this thread, it has been very helpful and I hope it will continue to be.
I am building a 3 kettle RIMS system with 2 pumps. The elements are 240V 3750W 16A HLT PID Control, 240V 3500W 15A RIMS PID Control, and 240V 5000W 21A Boil Kettle...