nitpick. a 220 volt circuit doesn’t use a neutral.
a 220 volt load only requires two ‘hot wires’, it doesn’t & can’t use a neutral, or grounded, conductor (white).
the only 220 volt circuits requiring a neutral are 110/220 volt loads. it’s needed for the 110 volt loads within the appliance (in ranges the 110 volt loads are the controls, fans, … everything but the bake/ broil elements. in dryers the 110 volt loads are typically the motors & controls, the heating element circuit is the 220 volt load).
- this is for the u.s. I’m not sure regarding any other countries.