I am starting to put together my electric brewery after months of reading on here and asking questions. It will be a 2 tier stand with 5500w elements in 2 keggles(HLT and BK). I will be using a cooler for a mash tun with one pump. I plan to expand to a HERMS system with 2 pumps later on. I am going to use this schematic and just slightly modify it. Even though he didn't draw it for me I would like to thank P-J for the time he put into this.
electrical stuff like wire and breakers/din rails can be found at places like digikey, newark, and mouser. Ebay and your local electrical supply should be able to help with some stuff too. The wire for the estop does not have to be very big. Current is what dictates wire size and if you are using PJ's estop that circuit wont pull more than 1 amp.
Those distribution blocks would work fine. Just make sure you get them for the right wire size and current draw you expect. I got mine from mcmaster-carr and i think you can get stuff like that from places like newark.com if you wanted to combine the order with other things.
how many volts will you be hooking up? 120? 240? most fuses are rated for high voltage. You need to be most concerned with current for fuses and breakers, although it is worth verifying the voltage limits.
Got my keggles all drilled and cleaned up the metal shavings and oil and installed weldless valves, pickup tubes, and sight glasses from BrewHardware.com. After getting everything put together I realized I still need to drill holes for the elements.