Problem was the switches were single pole so you always had 55v even when off.
Is that even legal?
I was under the impression that any centre-tapped supply, had to have fusing and switching in BOTH live conductors.
The two-pole switching is required and the circuit breakers must have coupled handle and tripping so both go off due to a fault on either conductor, auxiliary trip, or manual action.
FYI, I did verify that the rear rocker switch on computer power supplies does have two poles, on at least the ones I checked. So in the USA that would allow them to be connected with NEMA 6-15 to 240 volts safely. This would also apply to "technical power 120 volts" as described in NEC 647.
You can get a 6-15P to C13 here:
http://www.stayonline.com/208v-straight-blade-cords.aspx
