Iwire, you are correct...I wasn ot clear in my posting. I just drifted some, as I wanted to underscore that both sides/ legs were 'hot.'
Some years back (say, 1981), UL was attempting to impliment a standatd for sump pumps. The propoesed standard had language that would have banned these sorts of controls. At the time, I was working for a company that made a pump with four different control styles- all of which would have been proscribed by the standard.
I objected, and the proposed language was deleted. I left that firm, went on to other adventures, and don't know if UL ever adopted a general sump pump standard.
