On 02/28/2014 12:01 PM, Gene Heskett wrote: > Isn't that an SSR Jon? How does it turn off then? > > It is a classic optocoupler, good to DC. Crydom and Omron also make DC SSRs, which I guess are FETs and a photovoltaic receiver to turn it on. The board I make is good to 15 mA at 60 V, so purely for signal applications, like turning a VFD on and off.
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