most of this is taken out of the electricbrewery.com site. the top pic shows the outside. there is a washer that is between the electrical box and the kettle. inside that washer is the high temp o ring.
pic two shows the inner stainless nut. the rubber washer that came with the element is not used. it was completely leak tight as is;
three just shows the wiring. note the ground would be attached to the electrical box in the final format. it was temporarily attached for the first boil. that is a 1500 watt 120 which was adequate for my use. it draws 12.5 amp. it was not so powerful that i need to set up any kind of temp controller or pulse wave modulator to control the boil. a 2000 watt 120 would draw 16.7 amp which is a little more taxing on circuits. i would likely have to then also set up other controls to control boil rate.
the next shows the plug. i used 10 feet of 20 amp water proof chord. (plug is 15 amp though) in final version i will reduce this so that it does not extend more than a foot past kettle. then use an extension chord. carrying and storing the pot, dumping the wort into the fermenter was a hastle with ten feet of chord.
the last two pics are gratuitious pictures of my jeep i am rebuilding ( 1984 cj7. i am original owner) and my buell blast which is actually a blast.