In article , "Bill Noble" wrote:
note that the "one side live all the time" is pretty much unique to the USA,

I'm sure that's news to thousands of electricians in Canada and Mexico.

whose standard 220 is really based on a grounded center tap neutral - most
other countries have a 220 that has a neutral leg and the hot leg is 220
above it, and the neutral is nominally at ground. So, in some other
country - say the UK, a single pole switch on the hot lead would eliminate
any "live" voltage past the switch.

True, but irrelevant. If the OP had been located in the UK, he would not have
been looking for a DP switch to disconnect a 240V load. The fact that he *was*
shows that he's located somewhere in North America.