4 pole switch

"Victor" wrote

For a project, I will be running 3 phase (+ earth) to a DB and then splitting it up into a 3 phase part to run 3p motors off and a single phase section (for 1p motors).

I want to use a switch to utilise only one section (3p or 1p) at a time, so basically using a 1-0-2 switch . My question is, are there any

*****If you run three phase (+ earth),you will not be able to derive a single phase supply as there will be no neutral. It is obvious from the foregoing and your rather silly question that you really haven't got a clue.You would be well advised to approach a qualified person with your requirements.

Brian Goldsmith.

If it is 3 phase Delta this is true but if it is 3 phase Star, does not the 'Star' connection become the neutral?

JD

"John Dunkley" top posted:-

If it is 3 phase Delta this is true but if it is 3 phase Star, does not the 'Star' connection become the neutral?

JD

Brian Goldsmith.