Don't worry about the 40amp thing thats not you. For the elements it's 50amp... Now you got 2550x4=10,200 divided by 220v = 46.37amp or if your voltage is 240 it will be 42.50amp either way you should be good. If you want to make sure and you already have the elements and a d.v.o.m take a ohm reading of the elements and use this ohms law calculator. We'll get you through it to dude. This is cool I feel like I'm back in voc-tech man that was a long time ago. You can e-mail me or just keep posting. Remember the only dumb question is the one you don't ask.
http://ourworld.compuserve.com/homep...en/ohmslaw.htm