Hey guys,
I am wanting to wire up a solid state relay (SSR) so that it can be used for turning on/off both AC or DC loads (e.g. 24VDC inductive load, or 24VAC inductive load - relay coils and contactors for example come in both DC or AC versions, 12V, 24V, etc.). I would provide the 2 SSR switch wires, and you could then use it along with the corresponding power supply (AC or DC).
Generally you would put a flyback diode across the relay output to protect it from the inductive load generating a spike when turning off. This is only for DC though, so this would not work for the AC load. What would I do here to satisfy both conditions? Does an SSR even need a flyback protection diode?
Here is the part number of the SSR I was using by the way:
VO14642AABTR
http://www.vishay.com/docs/81646/vo14642a.pdf
I am wanting to wire up a solid state relay (SSR) so that it can be used for turning on/off both AC or DC loads (e.g. 24VDC inductive load, or 24VAC inductive load - relay coils and contactors for example come in both DC or AC versions, 12V, 24V, etc.). I would provide the 2 SSR switch wires, and you could then use it along with the corresponding power supply (AC or DC).
Generally you would put a flyback diode across the relay output to protect it from the inductive load generating a spike when turning off. This is only for DC though, so this would not work for the AC load. What would I do here to satisfy both conditions? Does an SSR even need a flyback protection diode?
Here is the part number of the SSR I was using by the way:
VO14642AABTR
http://www.vishay.com/docs/81646/vo14642a.pdf