Just checked out the brewmation controls. Looks like a solid option for converting a gas setup to electric.
Steve, check out the control system from electric brewery.
http://www.theelectricbrewery.com/control-panelThey have a real solid setup. You might want to look at their 50A back to back setup. I'd even recommend giving them a call.
They sell their control panels either plug n play, or as a kit, where assemply is required. They charge around $750 to assemble the panel for you.
The 50A back to back only comes as a kit at the moment, and is designed for brewers who are running back to back batches. it allows you to run a pair of 4500W elements (the kettle and HLT) at the same time.
So after reviewing the above, and my previous post, you should only run 2 x 4500W elements at the same time with a 50A circuit....not supposed to exceed 80% of a circuit's amperage.
Sooooo.....a person could instal dual 4500W elements in both the HLT and boil kettle, and only power 2 elements at a time....that would work out, but you'd have to manually unplug and plug elements in as you need them.