Re: [CAD_CAM_EDM_DRO] Solid State Relays for AUX control

Jon,
how do you protect contacts of contactor from arching?
Alex

----- Original Message -----
From: Jon Elson <elson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, October 31, 2003 1:37 PM
Subject: Re: [CAD_CAM_EDM_DRO] Solid State Relays for AUX control


>
>
> Egroupscdh (E-mail) wrote:
>
> >Can anyone recommend a source for inexpensive (but reasonable quality)
Solid
> >State Relays (SSR) to use between the Ahha driver box and things like
> >coolant, etc?
> >
> >Is there a real difference between these SSRs? I.e.: Do all of them do
> >their switching at the zero crossover to minimize noise? Is this a real
> >concern? All of my components (PC, Ahha driver box, VFD, etc. will be
> >mounted in the rear cabinet of a Bridgeport Series I conversion.
> >
> >
> Crydom has some really cheap epoxy-dipped units that are available from
> Digi-Key or Mouser. The Crydom part # is D2W202F, it is good for 240 V
> and 2 A. If more current is needed, I use an external contactor.
>
> Jon
>
>
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