To choose an enclosure for your DeltaV system, consider the following items:
You can choose from a wide variety of suitable enclosures to protect your system from adverse environmental conditions. The enclosures range from simple sheet metal boxes to NEMA 4X-rated enclosures. Select the appropriate type for your specific application.
Figure: Enclosure Example #1 and Figure: Enclosure Example #2 show example arrangements for mounting your DeltaV system in a horizontal enclosure. Figure: Enclosure Example #3 shows an example arrangement for mounting your DeltaV system in a vertical enclosure. These figures indicate areas available for wire management. You can access wiring through gland plates or through conduited entries. The enclosure supplier can help you select the proper arrangement for your application.
The enclosure must be designed to dissipate the heat generated within the enclosure properly and to maintain an ambient temperature in the enclosure that is below the rated temperature for any devices located in the enclosure. The information you need to properly design the enclosure includes:
- Maximum external ambient temperature for the application
- Ambient rating of any equipment mounted in the cabinet
- Power dissipation of each device
The internal temperature of the enclosure cannot exceed the rated temperature for any devices located in the enclosure.
