Hi, I am getting ready to build my controller following Kals Electric brewery site. I just got my switches and noticed they are different than the one Kal listed. These came with the plastic blocks that are NC/NO. I want to install the safe interlock and just wondering if all I need is a NC/NC add on for my element select switch. Since these switches already have the NO/NC, I should not need any other contact blocks, right?
Picture of switch
2 NC Contact Block
Thanks, just want to make sure I order the correct stuff.