Re: Marshalling Panel In Class 1 Division 2 Location
I can assure you that "rbalex" is correct when he told you that you can have marshalling cabinets in a Class 1, Division 2, Groups A,B,C, or D area.
I worked in the Chemical industry for 45 years, and we did this many times.
I would put a marshalling cabinet on each floor of the building and then run multi-conductor cables from my electrical/instrument control room.
Then we could then run from the marshalling cabinet to the respective equipment, such as a solenoid valve, pressure switch, level switch, etc.It certainly is a very cost-effective way of doing a project.
For example, when you install your multi-conductor cable from your Elect./Inst. control room, you would make sure that you put plenty of spare wires, so when you have an added switch, etc., you would just need to run from the marshalling cabinet that you had installed on each floor. I always found this to be very cost-effective way to do a project.