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Good afternoon, i have a question about the BCS 482, i am about to build a 3 vessel herms system with the 482 and have a question regarding relay boards, i am aware the 482 has 8 inbuilt 12v relays. An electrican friend of mine said to use a sdpt relay board additional tothe 482 that way if an external relay board gets damaged it is only a $25 outlay compared to $280 outlay....as it is only the 12v side of switching etc what are the chances of it getting damaged? Is this not necessary....
I intend to use a 12 vdc relay board rather than powering any Out with just the out itself. I have two 12 vdc power supplies. I will use on for the BCS 482 (Shipped Today!) and the other for any devices. Overkill for sure.
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Just to clarify, the 482 does not have built in relays - it has 16 driver circuit outputs that can drive up to 150mA of current. That output can directly power a relay or it can directly power devices like ball valves. If you are running any 120VAC devices, then you definitely need relays.
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