ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Will an American 2-pole brkr function properly if wired to a European 220v 50h sys ?

I would like to say that:

1, We always use double pole (or 3+N) breakers.

2, The breakers fuse the phase as well as the neutral.

3, It always breaks simultanously all poles.

4, When using 3+N breakers then the neutral opens a fraction of a second later and upon closing, a fraction of a second earlier.

5, The reason that we are required to use double pole breakers is because a lot of regions are still the old Y230/120 systems. In those regions only the two phase (or eventualy 3 phase) are delivered to the consumer, therefore getting 230V. Therfore all the phases have to be broken.