rjxj wrote:
That's interesting. Every connector in my house panel from 15 to 60 amp uses a screw connector with solid wire.
If you are referring to a wire nut (aka marrette) how many #10 splices have you got that are actually stranded to solid? Solid to solid is a different matter.
If you are talking about a circuit breaker, look very closely at them and you will see a different profile to the lugs like in this pic which is a residential 15A brkr. Note the concave shape on each of the two contact surfaces of the lug. The lug in the EMS is basically flat on at the contact points.