Hammond painted carbon steel subpanels provide a surface to install electronic components in the enclosure without compromising the NEMA rating. Carbon steel subpanels sell separately in various height and width dimensions, with white powder coat finish.
Subpanels are included with many of the Hammond industrial enclosures. Subpanels not included are purchased separately. The specifications table for each enclosure family lists the part number of the subpanel that goes with each enclosure.