50A 3-phase circuit breaker

lazza Solar Expert Posts: 336 ✭✭✭
HI All

Excuse my ignorance on this topic. I'm trying to work out how many kW a 3-phase (380V as we are in Europe) 50A MCB circuit breaker can deal with until it trips.

Some people tell me it's 50A per phase, and others that it's 50A over the 3 phases, which is another calculation. There seems to be lots of confusion.

Can anyone enlighten me?



  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    A 50A 3 phase breaker would be 50A per phase.
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