| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| 600 | DF | HOUSING OR MOUNTING ASSEMBLIES WITH DIVERSE ELECTRICAL COMPONENTS {11} |
| 601 | DF | .~ For electrical power distribution systems and devices {10} |
| 627 | DF | .~.~ Distribution or control panel board {6} |
| 628 | ![]() | .~.~.~ With switches and fuses {1} |
| 629 | DF | .~.~.~.~> Unit block |