I'm installing a new wall oven into a new cabinet.
Previous oven was wired with just the wire nuts exposed behind the oven; I was a bit surprised of not having an electrical box.
I was planning on just installing the correct size electrical box but I've also read that a disconnect is recommended for a 220 appliance if the panel is more than 50' or out of line-of-site (both apply).
I would go with an ordinary electrical box with no switch.
(One morning on WRKO Radio) The tub's not clean! Let's remodel the bathroom.
(One afternoon on WRKO Radio) It's time for an oil change. I'm going to trade in the car for next year's model.