Re: All Windings Off setting, Camtronics 5A boards

Hi Jon,

That explains it, they just seem to be a 4th pair of contacts.

Alan KM6VV


Jon Elson wrote:

>
> Alan Marconett KM6VV wrote:
>
> > Thanks Ray,
> >
> > I'm going to investigate any coil to contact paths with a meter, then
> > try it out. Seems to work on 24v, and there were transformers and power
> > supplies in the "box". Many actuator/indicators also, a meter should
> > figure them out. Also four nice breakers, I haven't seen what current
> > yet.
> >
> > There ARE three matching terminals for the L1,L2,L3. I'M not going to
> > do 3-phase.
> >
> > Still wonder why they called on terminal N/C, and another N/O. There is
> > continuity BETWEEN them if I actuate the contactor. The names would
> > imply to me that there was a "common" pin somewhere, and NOT closure
> > between the contacts.
>
> N/C and N/O do not necessarily mean a double-throw contact set.
> it is common on contactors to have some normally open contacts, and
> some normally closed. (The N/C contacts can be used to force other
> contactors to drop out, or to prevent others from closing, when this one
> is engaged.)
>
> Jon