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