I'm remodelling my kitchen. Currently it's set up for a plug-in electric range, with what looks like a 14-50R outlet, fed by a 3-8 AWG cable protected by a two-pole 40 Amp breaker.
My new setup includes a built-in oven and a gas cooktop.
The new oven needs to connect to a junction box. The oven spex say it draws 4500 W of power and a 20 Amp circuit is "recommended", presumably for each of the two phases it wants. The cable supplied with it is aluminium-shielded 3-12 AWG, rated for 150°C.
The cooktop needs its own 120V supply (via a plug-in cord), just for the igniter.
I understand that I can't connect my new oven to the existing 40 Amp circuit, so my plan is to feed that circuit into a small subpanel and install a two-pole 20 Amp breaker to feed the new oven, and another, 1-pole, 20 Amp breaker for the cooktop.
Does that sound right?