78gbod Posted November 20, 2011 Share Posted November 20, 2011 Hey all. First post and looking forward to building my display for NEXT Christmas.I am looking at getting a DIO32 with 4 DIO8RLY's. I have a couple of questions on this set up. I will be using 120 VAC or 18 VDC to power the board. With either of these two power sources, is there a limit to how many of the relays on the relay boards I can pull in at one time. In other works could I pull in all of the relays at once and hold them? Also, I know the relay switches are rated for 16 amps at 250 VAC. Any idea of the rating at 18 volts?Chad Link to comment Share on other sites More sharing options...
78gbod Posted November 20, 2011 Author Share Posted November 20, 2011 Anybody? Thanks in advance.Chad Link to comment Share on other sites More sharing options...
ItsMeBobO Posted November 20, 2011 Share Posted November 20, 2011 Welcome Chad. I do have two of these boards. But no special electronics knowledge. What are you going to use 32 relays on? I use them on my strobes and lasers which can not be dimmed.Pretty confident you can activate all the relays at once. But I question if you can power all 32 fixtures from the same power supply. The relays can handle DC 18 volts. Link to comment Share on other sites More sharing options...
78gbod Posted November 21, 2011 Author Share Posted November 21, 2011 Thanks for the reply ItsMeBobO. Like you, I would be using them for strobes, bubble and fog machines (going to hack the remotes) etc. I actually doubt I would ever pull all 32 in at once or even use all 32. I was more looking for limits of the system to make sure I wouldn't cross that limit. I would use these boards for Halloween as well as Christmas and in static displays as well as for floats. It looks like the DIO32 board is best as I can drive it off of AC or DC voltage. As for the power supply for the fixtures, I would have multiple supplies.Chad Link to comment Share on other sites More sharing options...
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