I know that you can't use a 20A recep on a 15A circuit, but can you use a 50A range recep on a 40A circuit, or is does the same rule apply?
IMS the table in the NEC specifically allows the use of a fifty ampere receptacle on a forty ampere circuit. That is the practical thing to do when the load will be cord and plug connected because there is no source for forty ampere cords and plugs.
That makes sense tdhorne. Thanks.
I checked the table and that is the right answer.
The table in question is 210.24. I looked at several list of receptacle patterns, including the ones in the NEC Handbook, without finding one for forty amperes.