Mixing AC & DC power

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mjc1060

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I am working on an BAS and have both AC & DC output devices. Does the NEC prohibit mixing AC & DC power in the same raceway?
 
Are you talking about control circuits or power circuits? What are the voltage levels? What are the power sources?
 
AC & DC control circuits in the same raceway.

AC & DC control circuits in the same raceway.

These are control circuits and the voltage are 24 volts.
 
I am assuming this is part of a temperature control system. if you mean you are mixing your rs-485 com with say a 4-20ma or 0-10v input, then yes you would be able to mix them. In fact as long as it isn't fire alarm and is part of the BAS temperature controls (less than 24v), you should be fine.
 
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