ECN Forum Forums General Topics of the Trade General Discussion Area Residential 3 Phase, Why / Why Not?

3-phase domestic supplies are pretty common in Continental Europe, although not here in the U.K.

So many of those supplies are very low rated though, sometimes set for only 15 or 20A per phase. As Alan says, you have to juggle what to Americans and Brits seem like small loads just to avoid tripping a main breaker.

Somehow I can't imagine that being a problem if 3-phase were used in U.S. homes, as the services would be "a little" heftier.