Thank you for the info. This one particular article is easily open to being misinterpreted, IMO, unless read and interpreted very carefully.
"The NEC updated the Code for outdoor outlets supplied by single-phase branch circuits rated 150 volts to ground or less, 50 amps or less. Key to this update: it extends beyond receptacle outlets to include all outlets. Now all hard-wired equipment falls under the Code’s purview."
A quick read would let one think it doesn't apply to a 240 volt circuit. A non-electrical person would come to the same conclusion.
Also, I believe most people think "receptacle" and "outlet" are the same thing. I did, until hitting the definitions section just now.
I hope the price of the double-pole GFCI breakers comes down.