Given the following:
Wall mounted oven with nameplate rating of 240V, 8KW, 40Amps.
Cooktop with nameplate rating of 240V, 8KW, 40Amps.
Can I run an #8/3 with 40A OCPD to a JBox. Two whips tapped from the JBox, one to the oven and one to the cooktop. Each whip is #10THHN in greenfield?
Table 220.19 note 4 allows the oven and cooktop to be to have their nameplate ratings added together and treated as one range. Thus I effectively have a range with a 16KW rating. For a 16KW range, table 220.19 note 1 applies. This gives me 8KW+[4(.05*8)] =9.6KW. 9.6KW/240=40Amps. Thus, I should be able to use a 40Amp branch circuit to feed both units. Anyone see any problems with this?