I am working on a compressor control system which is utilizing five 24VDC, 10W solenoid valves which are located in various places on the compressor package. The DC is being supplied by a 120W power supply. We want to route the solenoid wiring via a junction box and connect the negative leads to an appropriately sized common return line. For control purposes, the positive leads will all be separately fed .
I have been trying to find any NEC requirements that pertain to this type of application. Any assistance would be greatly appreciated.
I have been trying to find any NEC requirements that pertain to this type of application. Any assistance would be greatly appreciated.