The last sentence of 422.10(A) allows the branch circuit of even a single household range to be sized according to table 220.19. I used to think that table (and section of the code) were only meant to be used for service load calculations. In essence, a single range rated at 75A (according to the marking on unit) can be hooked up with 50A wire and have 50A OCP. I realize that rarely is the unit going to be operated at full load but why is this allowed? It is like hooking up a group of motors and ignoring a couple dozen FLA’s just because "rarely" will all motors be used at once. Are the numbers listed on ranges overly optimistic on how much draw they have or what?
