If the pdu contains a surge suppressor and was designed for 120v, plugging in to 220 will cause the MOV that protects against transient over-voltage to emit smoke. The breaker or fuse is a current limiting device.
Joel Pete Templin <peteli...@templin.org> wrote: >Dave Larter wrote: >> Seems like if the c14 was connected to a 240v PDU the 5-15 would >> deliver 240v to the equipment, arc/pop tripping the breaker on the >> PDU as soon as it is connected killing power to everything on that >> PDU. Or am I missing something? > >If you plug a PDU into a service that's higher voltage than expected, >why would the PDU circuit breaker trip? That breaker is measuring >current, AFAICT, though in the end it might be measuring power. >Regardless, it isn't measuring voltage, because that isn't constant >(it's AC, after all) and is likely to drop under a short circuit, not >skyrocket like the current will. > >pt >